Conferences By Countries

Conferences By Cities

Conferences By Subject

Upcoming Conferences

Reviews & Gallery

Tags

Magnus Past Events Medical Conferences Chemistry Conferences Upcoming Magnus Conferences About Magnus Magnus Conferences Reviews Nursing Conferences Catalysis Conferences

Latest Tweets

Upcoming Magnus Conferences

Jun 13th, 2022

6th Edition of Global Conference on Pharmaceutics and Novel Drug Delivery Systems
Organizer - Magnus Group
  • Jun 13-14, 2022
  • Online, Online
View Details

Jun 13th, 2022

2nd Edition of Euro-Global Conference on Biotechnology and Bioengineering
Organizer - Magnus Group
  • Jun 13-14, 2022
  • Online, Online
View Details

Jun 13th, 2022

International Conference and Expo on Toxicology and Applied Pharmacology
Organizer - Magnus Group
  • Jun 13-14, 2022
  • Online, Online
View Details

Jun 13th, 2022

2nd Edition of Chemistry World Conference
Organizer - Magnus Group
  • Jun 13-14, 2022
  • Online, Online
View Details

Jun 15th, 2022

5th Edition of International Conference on Neurology and Neurological Disorders
Organizer - Magnus Group
  • Jun 15-16, 2022
  • Online, Online
View Details

Jun 15th, 2022

International Alzheimer’s Disease & Dementia Conference
Organizer - Magnus Group
  • Jun 15-16, 2022
  • Online, Online
View Details

Jun 15th, 2022

2nd Edition of International Nutrition Research Conference
Organizer - Magnus Group
  • Jun 15-16, 2022
  • Online, Online
View Details

Jun 15th, 2022

International Conference on Probiotics and Prebiotics
Organizer - Magnus Group
  • Jun 15-16, 2022
  • Online, Online
View Details

Jun 17th, 2022

2nd Edition of World Congress on Infectious Diseases
Organizer - Magnus Group
  • Jun 17-18, 2022
  • Online, Online
View Details

Jun 17th, 2022

Virology World Conference
Organizer - Magnus Group
  • Jun 17-18, 2022
  • Online, Online
View Details

Jun 17th, 2022

International Conference and Expo on Clinical Microbiology
Organizer - Magnus Group
  • Jun 17-18, 2022
  • Online, Online
View Details

Jun 17th, 2022

International Conference and Expo on Applied Microbiology
Organizer - Magnus Group
  • Jun 17-18, 2022
  • Online, Online
View Details

Aug 08th, 2022

International Conference on Orphan Drugs and Rare Diseases
Organizer - Magnus Group
  • Aug 08-10, 2022
  • Online, Online
View Details

Aug 08th, 2022

3rd Edition of International Precision Medicine Conference
Organizer - Magnus Group
  • Aug 08-10, 2022
  • Online, Online
View Details

Aug 08th, 2022

International Nursing Science Conference
Organizer - Magnus Group
  • Aug 08-10, 2022
  • Online, Online
View Details

Aug 11th, 2022

World Orthopedics Conference
Organizer - Magnus Group
  • Aug 11-12, 2022
  • Online, Online
View Details

Aug 11th, 2022

Global Conference on Physical Medicine and Rehabilitation
Organizer - Magnus Group
  • Aug 11-12, 2022
  • Online, Online
View Details

Aug 11th, 2022

6th Edition of International Conference on Dentistry and Oral Health
Organizer - Magnus Group
  • Aug 11-13, 2022
  • Online, Online
View Details

Sep 01st, 2022

7th Edition of Global Conference on Plant Science and Molecular Biology
Organizer - Magnus Group
  • Sep 01-03, 2022
  • Paris, France
View Details

Sep 01st, 2022

2nd Edition of Global Conference on Agriculture and  Horticulture
Organizer - Magnus Group
  • Sep 01-03, 2022
  • Paris, France
View Details

Sep 05th, 2022

2nd Edition of European Lasers, Photonics and Optics Technologies Summit 
Organizer - Magnus Group
  • Sep 05-06, 2022
  • Paris, France
View Details

Sep 05th, 2022

International Conference on Analytical and Bioanalytical Techniques
Organizer - Magnus Group
  • Sep 05-06, 2022
  • Paris, France
View Details

Sep 05th, 2022

12th Edition of Global Conference on Catalysis, Chemical Engineering & Technology
Organizer - Magnus Group
  • Sep 05-07, 2022
  • Paris, France
View Details

Sep 08th, 2022

4th Edition of Euro-Global Conference on Pediatrics and Neonatology
Organizer - Magnus Group
  • Sep 08-09, 2022
  • Paris, France
View Details

Sep 08th, 2022

7th Edition of Global Conference on Pharmaceutics and Novel Drug Delivery Systems
Organizer - Magnus Group
  • Sep 08-10, 2022
  • Paris, France
View Details

Sep 08th, 2022

International Conference on Medicinal Chemistry, Computer Aided Drug Design and Delivery
Organizer - Magnus Group
  • Sep 08-10, 2022
  • Paris, France
View Details

Sep 12th, 2022

4th Edition of Euro-Global Conference on Food Science and Technology
Organizer - Magnus Group
  • Sep 12-13, 2022
  • Paris, France
View Details

Sep 12th, 2022

3rd Edition of International Nutrition Research Conference
Organizer - Magnus Group
  • Sep 12-13, 2022
  • Paris, France
View Details

Sep 12th, 2022

Euro Global Conference on Proteomics, Genomics and Bioinformatics
Organizer - Magnus Group
  • Sep 12-13, 2022
  • Paris, France
View Details

Sep 14th, 2022

2nd Edition of International Conference on COPD and Asthma
Organizer - Magnus Group
  • Sep 14-15, 2022
  • Paris, France
View Details

Sep 14th, 2022

2nd Edition of Global Conference on Surgery and Anaesthesia
Organizer - Magnus Group
  • Sep 14-15, 2022
  • Paris, France
View Details

Sep 14th, 2022

3rd Edition of Cardiology World Conference
Organizer - Magnus Group
  • Sep 14-15, 2022
  • Paris, France
View Details

Sep 16th, 2022

2nd Edition of International Conference on Tissue Engineering and Regenerative Medicine
Organizer - Magnus Group
  • Sep 16-17, 2022
  • Paris, France
View Details

Sep 16th, 2022

International Conference on Cell and Stem Cell Research
Organizer - Magnus Group
  • Sep 16-17, 2022
  • Paris, France
View Details

Sep 16th, 2022

6th Edition of International Cancer Conference
Organizer - Magnus Group
  • Sep 16-17, 2022
  • Paris, France
View Details

Sep 19th, 2022

Euro-Global Climate Change Conference 
Organizer - Magnus Group
  • Sep 19-20, 2022
  • Paris, France
View Details

Sep 19th, 2022

Euro Global Conference on Recycling and Waste Management
Organizer - Magnus Group
  • Sep 19-20, 2022
  • Paris, France
View Details

Sep 19th, 2022

Global Conference on Geology and Earth Science
Organizer - Magnus Group
  • Sep 19-20, 2022
  • Paris, France
View Details

Sep 21st, 2022

5th Edition of World Nanotechnology Conference
Organizer - Magnus Group
  • Sep 21-22, 2022
  • Paris, France
View Details

Sep 21st, 2022

3rd Edition of International Conference on Materials Science and Engineering
Organizer - Magnus Group
  • Sep 21-22, 2022
  • Paris, France
View Details

Sep 21st, 2022

International Conference on Veterinary Science
Organizer - Magnus Group
  • Sep 21-22, 2022
  • Paris, France
View Details

Oct 17th, 2022

2nd Edition of World Obesity and Weight Management Congress
Organizer - Magnus Group
  • Oct 17-18, 2022
  • Orlando, USA
View Details

Oct 17th, 2022

International Conference on Diabetes, Metabolism and Endocrinology
Organizer - Magnus Group
  • Oct 17-18, 2022
  • Orlando, USA
View Details

Oct 19th, 2022

3rd Edition of World Congress on Infectious Diseases
Organizer - Magnus Group
  • Oct 19-20, 2022
  • Orlando, USA
View Details

Oct 19th, 2022

2nd Edition of International Vaccines Congress
Organizer - Magnus Group
  • Oct 19-20, 2022
  • Online, Online
View Details

Oct 19th, 2022

International Conference on Clinical Immunology and Allergy
Organizer - Magnus Group
  • Oct 19-20, 2022
  • Online, Online
View Details

Oct 21st, 2022

International Conference on Oil, Gas and Petroleum Engineering
Organizer - Magnus Group
  • Oct 21-22, 2022
  • Orlando, USA
View Details

Oct 21st, 2022

13th Edition of International Conference on Catalysis, Chemical Engineering and Technology
Organizer - Magnus Group
  • Oct 21-22, 2022
  • Orlando, USA
View Details

Oct 21st, 2022

Global Conference on Biofuels and Bioenergy
Organizer - Magnus Group
  • Oct 21-22, 2022
  • Orlando, USA
View Details

Oct 24th, 2022

6th Edition of International Conference on Neurology and Brain Disorders
Organizer - Magnus Group
  • Oct 24-26, 2022
  • Orlando, USA
View Details

Oct 24th, 2022

3rd Edition of Global Conference on Addiction Medicine, Behavioral Health and Psychiatry
Organizer - Magnus Group
  • Oct 24-26, 2022
  • Orlando, USA
View Details

Oct 27th, 2022

International Ophthalmology Conference
Organizer - Magnus Group
  • Oct 27-28, 2022
  • Orlando, USA
View Details

Oct 27th, 2022

6th Edition of Nursing World Conference
Organizer - Magnus Group
  • Oct 27-29, 2022
  • Orlando, USA
View Details

Mar 13th, 2023

4th Edition of International Conference on Materials Science and Engineering
Organizer - Magnus Group
  • Mar 13-15, 2023
  • Singapore, Singapore
View Details

Mar 13th, 2023

14th Edition of Global Conference on Catalysis, Chemical Engineering and Technology
Organizer - Magnus Group
  • Mar 13-15, 2023
  • Singapore, Singapore
View Details

Mar 13th, 2023

8th Edition of Global Conference on Pharmaceutics and Novel Drug Delivery Systems
Organizer - Magnus Group
  • Mar 13-15, 2023
  • Singapore, Singapore
View Details

Mar 16th, 2023

3rd Edition of Singapore Nursing Research Conference
Organizer - Magnus Group
  • Mar 16-18, 2023
  • Singapore, Singapore
View Details

Mar 16th, 2023

2nd Edition of International Public Health Conference
Organizer - Magnus Group
  • Mar 16-18, 2023
  • Singapore, Singapore
View Details

Mar 16th, 2023

7th Edition of Global Congress on Plant Biology and Biotechnology
Organizer - Magnus Group
  • Mar 16-18, 2023
  • Singapore, Singapore
View Details

Apr 17th, 2023

International Summit on Hematology and Blood Disorders
Organizer - Magnus Group
  • Apr 17-19, 2023
  • Orlando, USA
View Details

Apr 17th, 2023

7th Edition of International Conference on Dentistry and Oral Health
Organizer - Magnus Group
  • Apr 17-19, 2023
  • Orlando, USA
View Details

Apr 20th, 2023

International Conference on Gastroenterology
Organizer - Magnus Group
  • Apr 20-22, 2023
  • Orlando, USA
View Details

Apr 22nd, 2023

Global Conference on Gynecology and Womens Health
Organizer - Magnus Group
  • Apr 22-22, 2023
  • Orlando, USA
View Details

Apr 24th, 2023

4th Edition of International Precision Medicine Conference
Organizer - Magnus Group
  • Apr 24-26, 2023
  • Orlando, USA
View Details

Apr 24th, 2023

6th Edition of World Nanotechnology Conference
Organizer - Magnus Group
  • Apr 24-26, 2023
  • Orlando, USA
View Details

May 22nd, 2023

15th Edition of International Conference on Catalysis, Chemical Engineering and Technology
Organizer - Magnus Group
  • May 22-23, 2023
  • Tokyo, Japan
View Details

May 22nd, 2023

3rd Edition of International Conference on Green Chemistry and Renewable Energy
Organizer - Magnus Group
  • May 22-23, 2023
  • Tokyo, Japan
View Details

May 24th, 2023

4th Edition of International Conference on Dermatology and Cosmetology
Organizer - Magnus Group
  • May 24-25, 2023
  • Tokyo, Japan
View Details

May 24th, 2023

3rd Edition of World Aquaculture and Fisheries Conference
Organizer - Magnus Group
  • May 24-25, 2023
  • Tokyo, Japan
View Details

USA Conferences

Oct 17th, 2022

2nd Edition of World Obesity and Weight Management Congress
Organizer - Magnus Group
  • Oct 17-18, 2022
  • Orlando, USA
View Details

Oct 17th, 2022

International Conference on Diabetes, Metabolism and Endocrinology
Organizer - Magnus Group
  • Oct 17-18, 2022
  • Orlando, USA
View Details

Oct 19th, 2022

3rd Edition of World Congress on Infectious Diseases
Organizer - Magnus Group
  • Oct 19-20, 2022
  • Orlando, USA
View Details

Oct 21st, 2022

International Conference on Oil, Gas and Petroleum Engineering
Organizer - Magnus Group
  • Oct 21-22, 2022
  • Orlando, USA
View Details

Oct 21st, 2022

13th Edition of International Conference on Catalysis, Chemical Engineering and Technology
Organizer - Magnus Group
  • Oct 21-22, 2022
  • Orlando, USA
View Details

Oct 21st, 2022

Global Conference on Biofuels and Bioenergy
Organizer - Magnus Group
  • Oct 21-22, 2022
  • Orlando, USA
View Details

Oct 24th, 2022

6th Edition of International Conference on Neurology and Brain Disorders
Organizer - Magnus Group
  • Oct 24-26, 2022
  • Orlando, USA
View Details

Oct 24th, 2022

3rd Edition of Global Conference on Addiction Medicine, Behavioral Health and Psychiatry
Organizer - Magnus Group
  • Oct 24-26, 2022
  • Orlando, USA
View Details

Oct 27th, 2022

International Ophthalmology Conference
Organizer - Magnus Group
  • Oct 27-28, 2022
  • Orlando, USA
View Details

Oct 27th, 2022

6th Edition of Nursing World Conference
Organizer - Magnus Group
  • Oct 27-29, 2022
  • Orlando, USA
View Details

Apr 17th, 2023

International Summit on Hematology and Blood Disorders
Organizer - Magnus Group
  • Apr 17-19, 2023
  • Orlando, USA
View Details

Apr 17th, 2023

7th Edition of International Conference on Dentistry and Oral Health
Organizer - Magnus Group
  • Apr 17-19, 2023
  • Orlando, USA
View Details

Apr 20th, 2023

International Conference on Gastroenterology
Organizer - Magnus Group
  • Apr 20-22, 2023
  • Orlando, USA
View Details

Apr 22nd, 2023

Global Conference on Gynecology and Womens Health
Organizer - Magnus Group
  • Apr 22-22, 2023
  • Orlando, USA
View Details

Apr 24th, 2023

4th Edition of International Precision Medicine Conference
Organizer - Magnus Group
  • Apr 24-26, 2023
  • Orlando, USA
View Details

Apr 24th, 2023

6th Edition of World Nanotechnology Conference
Organizer - Magnus Group
  • Apr 24-26, 2023
  • Orlando, USA
View Details

Asia Pacific Conferences

Mar 13th, 2023

4th Edition of International Conference on Materials Science and Engineering
Organizer - Magnus Group
  • Mar 13-15, 2023
  • Singapore, Singapore
View Details

Mar 13th, 2023

14th Edition of Global Conference on Catalysis, Chemical Engineering and Technology
Organizer - Magnus Group
  • Mar 13-15, 2023
  • Singapore, Singapore
View Details

Mar 13th, 2023

8th Edition of Global Conference on Pharmaceutics and Novel Drug Delivery Systems
Organizer - Magnus Group
  • Mar 13-15, 2023
  • Singapore, Singapore
View Details

Mar 16th, 2023

3rd Edition of Singapore Nursing Research Conference
Organizer - Magnus Group
  • Mar 16-18, 2023
  • Singapore, Singapore
View Details

Mar 16th, 2023

2nd Edition of International Public Health Conference
Organizer - Magnus Group
  • Mar 16-18, 2023
  • Singapore, Singapore
View Details

Mar 16th, 2023

7th Edition of Global Congress on Plant Biology and Biotechnology
Organizer - Magnus Group
  • Mar 16-18, 2023
  • Singapore, Singapore
View Details

May 22nd, 2023

15th Edition of International Conference on Catalysis, Chemical Engineering and Technology
Organizer - Magnus Group
  • May 22-23, 2023
  • Tokyo, Japan
View Details

May 22nd, 2023

3rd Edition of International Conference on Green Chemistry and Renewable Energy
Organizer - Magnus Group
  • May 22-23, 2023
  • Tokyo, Japan
View Details

May 24th, 2023

4th Edition of International Conference on Dermatology and Cosmetology
Organizer - Magnus Group
  • May 24-25, 2023
  • Tokyo, Japan
View Details

May 24th, 2023

3rd Edition of World Aquaculture and Fisheries Conference
Organizer - Magnus Group
  • May 24-25, 2023
  • Tokyo, Japan
View Details

Europe Conferences

Jun 13th, 2022

6th Edition of Global Conference on Pharmaceutics and Novel Drug Delivery Systems
Organizer - Magnus Group
  • Jun 13-14, 2022
  • Online, Online
View Details

Jun 13th, 2022

2nd Edition of Euro-Global Conference on Biotechnology and Bioengineering
Organizer - Magnus Group
  • Jun 13-14, 2022
  • Online, Online
View Details

Jun 13th, 2022

International Conference and Expo on Toxicology and Applied Pharmacology
Organizer - Magnus Group
  • Jun 13-14, 2022
  • Online, Online
View Details

Jun 13th, 2022

2nd Edition of Chemistry World Conference
Organizer - Magnus Group
  • Jun 13-14, 2022
  • Online, Online
View Details

Jun 15th, 2022

5th Edition of International Conference on Neurology and Neurological Disorders
Organizer - Magnus Group
  • Jun 15-16, 2022
  • Online, Online
View Details

Jun 15th, 2022

International Alzheimer’s Disease & Dementia Conference
Organizer - Magnus Group
  • Jun 15-16, 2022
  • Online, Online
View Details

Jun 15th, 2022

2nd Edition of International Nutrition Research Conference
Organizer - Magnus Group
  • Jun 15-16, 2022
  • Online, Online
View Details

Jun 15th, 2022

International Conference on Probiotics and Prebiotics
Organizer - Magnus Group
  • Jun 15-16, 2022
  • Online, Online
View Details

Jun 17th, 2022

2nd Edition of World Congress on Infectious Diseases
Organizer - Magnus Group
  • Jun 17-18, 2022
  • Online, Online
View Details

Jun 17th, 2022

Virology World Conference
Organizer - Magnus Group
  • Jun 17-18, 2022
  • Online, Online
View Details

Jun 17th, 2022

International Conference and Expo on Clinical Microbiology
Organizer - Magnus Group
  • Jun 17-18, 2022
  • Online, Online
View Details

Jun 17th, 2022

International Conference and Expo on Applied Microbiology
Organizer - Magnus Group
  • Jun 17-18, 2022
  • Online, Online
View Details

Aug 08th, 2022

International Conference on Orphan Drugs and Rare Diseases
Organizer - Magnus Group
  • Aug 08-10, 2022
  • Online, Online
View Details

Aug 08th, 2022

3rd Edition of International Precision Medicine Conference
Organizer - Magnus Group
  • Aug 08-10, 2022
  • Online, Online
View Details

Aug 08th, 2022

International Nursing Science Conference
Organizer - Magnus Group
  • Aug 08-10, 2022
  • Online, Online
View Details

Aug 11th, 2022

World Orthopedics Conference
Organizer - Magnus Group
  • Aug 11-12, 2022
  • Online, Online
View Details

Aug 11th, 2022

Global Conference on Physical Medicine and Rehabilitation
Organizer - Magnus Group
  • Aug 11-12, 2022
  • Online, Online
View Details

Aug 11th, 2022

6th Edition of International Conference on Dentistry and Oral Health
Organizer - Magnus Group
  • Aug 11-13, 2022
  • Online, Online
View Details

Sep 01st, 2022

7th Edition of Global Conference on Plant Science and Molecular Biology
Organizer - Magnus Group
  • Sep 01-03, 2022
  • Paris, France
View Details

Sep 01st, 2022

2nd Edition of Global Conference on Agriculture and  Horticulture
Organizer - Magnus Group
  • Sep 01-03, 2022
  • Paris, France
View Details

Sep 05th, 2022

2nd Edition of European Lasers, Photonics and Optics Technologies Summit 
Organizer - Magnus Group
  • Sep 05-06, 2022
  • Paris, France
View Details

Sep 05th, 2022

International Conference on Analytical and Bioanalytical Techniques
Organizer - Magnus Group
  • Sep 05-06, 2022
  • Paris, France
View Details

Sep 05th, 2022

12th Edition of Global Conference on Catalysis, Chemical Engineering & Technology
Organizer - Magnus Group
  • Sep 05-07, 2022
  • Paris, France
View Details

Sep 08th, 2022

4th Edition of Euro-Global Conference on Pediatrics and Neonatology
Organizer - Magnus Group
  • Sep 08-09, 2022
  • Paris, France
View Details

Sep 08th, 2022

7th Edition of Global Conference on Pharmaceutics and Novel Drug Delivery Systems
Organizer - Magnus Group
  • Sep 08-10, 2022
  • Paris, France
View Details

Sep 08th, 2022

International Conference on Medicinal Chemistry, Computer Aided Drug Design and Delivery
Organizer - Magnus Group
  • Sep 08-10, 2022
  • Paris, France
View Details

Sep 12th, 2022

4th Edition of Euro-Global Conference on Food Science and Technology
Organizer - Magnus Group
  • Sep 12-13, 2022
  • Paris, France
View Details

Sep 12th, 2022

3rd Edition of International Nutrition Research Conference
Organizer - Magnus Group
  • Sep 12-13, 2022
  • Paris, France
View Details

Sep 12th, 2022

Euro Global Conference on Proteomics, Genomics and Bioinformatics
Organizer - Magnus Group
  • Sep 12-13, 2022
  • Paris, France
View Details

Sep 14th, 2022

2nd Edition of International Conference on COPD and Asthma
Organizer - Magnus Group
  • Sep 14-15, 2022
  • Paris, France
View Details

Sep 14th, 2022

2nd Edition of Global Conference on Surgery and Anaesthesia
Organizer - Magnus Group
  • Sep 14-15, 2022
  • Paris, France
View Details

Sep 14th, 2022

3rd Edition of Cardiology World Conference
Organizer - Magnus Group
  • Sep 14-15, 2022
  • Paris, France
View Details

Sep 16th, 2022

2nd Edition of International Conference on Tissue Engineering and Regenerative Medicine
Organizer - Magnus Group
  • Sep 16-17, 2022
  • Paris, France
View Details

Sep 16th, 2022

International Conference on Cell and Stem Cell Research
Organizer - Magnus Group
  • Sep 16-17, 2022
  • Paris, France
View Details

Sep 16th, 2022

6th Edition of International Cancer Conference
Organizer - Magnus Group
  • Sep 16-17, 2022
  • Paris, France
View Details

Sep 19th, 2022

Euro-Global Climate Change Conference 
Organizer - Magnus Group
  • Sep 19-20, 2022
  • Paris, France
View Details

Sep 19th, 2022

Euro Global Conference on Recycling and Waste Management
Organizer - Magnus Group
  • Sep 19-20, 2022
  • Paris, France
View Details

Sep 19th, 2022

Global Conference on Geology and Earth Science
Organizer - Magnus Group
  • Sep 19-20, 2022
  • Paris, France
View Details

Sep 21st, 2022

5th Edition of World Nanotechnology Conference
Organizer - Magnus Group
  • Sep 21-22, 2022
  • Paris, France
View Details

Sep 21st, 2022

3rd Edition of International Conference on Materials Science and Engineering
Organizer - Magnus Group
  • Sep 21-22, 2022
  • Paris, France
View Details

Sep 21st, 2022

International Conference on Veterinary Science
Organizer - Magnus Group
  • Sep 21-22, 2022
  • Paris, France
View Details

Oct 17th, 2022

International Conference on Diabetes, Metabolism and Endocrinology
Organizer - Magnus Group
  • Oct 17-18, 2022
  • Orlando, USA
View Details

Address

Magnus Group LLC

150 South Wacker Drive #2400
Chicago, IL 60606, USA

Important Links

Conference

For USA events

Email : [email protected]

Ph :1800–883-8082 ( Toll Free )

For Europe events

Email : [email protected]

Ph :+1 (702) 988 2320

For Asia-Pacific events

Email : [email protected]

Ph :+1 (702) 988 2320 ext. 22

Copyright © 2016 Magnus Group. All rights reserved.

Watsapp