--- title: "Pocket Smile - Reviews, Revenue and Downloads in United Kingdom | Apple App Store" description: "Have you ever noticed how many smiles are started by other smiles? Just like laughing, smiling is contagious. Participate in ground-breaking science to see if looking at smiling faces throughout the d" --- # Pocket Smile — United Kingdom ![Pocket Smile App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple122/v4/6f/0d/ea/6f0dea67-1ebc-f002-a01f-8b9b474b6bcf/mzl.iystkccg.png/434x0w.png) **Developer:** [UCL](https://apptail.io/developer/ucl-mg) **Category:** Health Fitness **Rating:** 5.0/5 (3 ratings) **Price:** Free **Bundle ID:** uk.ac.ucl.pocketsmile **Store:** Apple App Store **Country:** United Kingdom **Version:** 1.7.5 (released 2017-01-30) **Original Release:** 2013-09-25 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/gb/app/app/id709226955) **AppTail Page:** [https://apptail.io/app/pocket-smile-TBJi/united-kingdom](https://apptail.io/app/pocket-smile-TBJi/united-kingdom) ## Pocket Smile Description Have you ever noticed how many smiles are started by other smiles? Just like laughing, smiling is contagious. Participate in ground-breaking science to see if looking at smiling faces throughout the day can increase happiness! HOW IT WORKS: Day 1: Pocket Smile shows you images of smiling faces or landscapes for 10 days Day 10: Any changes in mood are tracked and the type of image you see switches for the next 10 days Day 20: You have completed the experiment! You can now choose what image type to see and the data is anonymously sent to UCL. FIND OUT MORE: Visit www.pocketsmile.icn.ucl.ac.uk for more information on this experiment supported by University College London, including news and updates! ## Pocket Smile Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple62/v4/f7/b0/ea/f7b0ea60-c261-4ae3-92f0-bfb291e66bb7/pr_source.png/1242x2208.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple71/v4/e2/ef/8d/e2ef8d36-bb09-5633-0538-1d56ac679d20/pr_source.png/1242x2208.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple62/v4/e1/7a/6b/e17a6b4b-4d77-8069-d717-05e6bb8fe73f/pr_source.png/1242x2208.png) ## Pocket Smile Rating Breakdown in United Kingdom - 5 stars: 3 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Pocket Smile Reviews in United Kingdom ### ***** "Just try it!" I heard PocketSmile made it second to the reddit/psychology section yesterday. But for sure it made it first to my heart! -- Ixkael, 2013-09-27 ### ***** "Great cause" A great little app with big plans ahead. I suggest everyone download this and participate to help further research and understand how our brains work! -- Egle3758, 2013-09-26 ### ***** "Amazing!" For science! -- Teddyc1, 2013-09-26 [View all Pocket Smile reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Apps Similar to Pocket Smile - [Prime Physiques](https://apptail.io/app/prime-physiques-JCK/united-kingdom) - [Moveo Fitness](https://apptail.io/app/moveo-fitness-CXHb/united-kingdom) - [Egao](https://apptail.io/app/egao-gGTi/united-kingdom) - [Savage or Average Coaching](https://apptail.io/app/savage-or-average-coaching-dwSl/united-kingdom) - [Equilibrium Petersfield](https://apptail.io/app/equilibrium-petersfield-XlMt/united-kingdom) - [Menopause Meditations](https://apptail.io/app/menopause-meditations-rxXt/united-kingdom) - [Notice Yourself](https://apptail.io/app/notice-yourself-FFlw/united-kingdom) - [Meludia Audition](https://apptail.io/app/meludia-audition-poix/united-kingdom) - [Antares BioSync Unit](https://apptail.io/app/antares-biosync-unit-QuCy/united-kingdom) - [Glumio: Blood Sugar Tracker](https://apptail.io/app/glumio-blood-sugar-tracker-HUEB/united-kingdom) ## Pocket Smile Available In - [United Kingdom](https://apptail.io/app/pocket-smile-TBJi/united-kingdom) - [France](https://apptail.io/app/pocket-smile-TBJi/france) - [Austria](https://apptail.io/app/pocket-smile-TBJi/austria) - [Australia](https://apptail.io/app/pocket-smile-TBJi/australia) - [Belgium](https://apptail.io/app/pocket-smile-TBJi/belgium) - [Brunei](https://apptail.io/app/pocket-smile-TBJi/brunei) - [Belarus](https://apptail.io/app/pocket-smile-TBJi/belarus) - [Canada](https://apptail.io/app/pocket-smile-TBJi/canada) - [Switzerland](https://apptail.io/app/pocket-smile-TBJi/switzerland) - [Chile](https://apptail.io/app/pocket-smile-TBJi/chile) - [China](https://apptail.io/app/pocket-smile-TBJi/china) - [Colombia](https://apptail.io/app/pocket-smile-TBJi/colombia) - [Cyprus](https://apptail.io/app/pocket-smile-TBJi/cyprus) - [Czechia](https://apptail.io/app/pocket-smile-TBJi/czechia) - [Germany](https://apptail.io/app/pocket-smile-TBJi/germany) - [Denmark](https://apptail.io/app/pocket-smile-TBJi/denmark) - [Dominican Republic](https://apptail.io/app/pocket-smile-TBJi/dominican-republic) - [Ecuador](https://apptail.io/app/pocket-smile-TBJi/ecuador) - [Egypt](https://apptail.io/app/pocket-smile-TBJi/egypt) - [Spain](https://apptail.io/app/pocket-smile-TBJi/spain) - [Finland](https://apptail.io/app/pocket-smile-TBJi/finland) - [Greece](https://apptail.io/app/pocket-smile-TBJi/greece) - [Hungary](https://apptail.io/app/pocket-smile-TBJi/hungary) - [Indonesia](https://apptail.io/app/pocket-smile-TBJi/indonesia) - [Ireland](https://apptail.io/app/pocket-smile-TBJi/ireland) - [Israel](https://apptail.io/app/pocket-smile-TBJi/israel) - [India](https://apptail.io/app/pocket-smile-TBJi/india) - [Italy](https://apptail.io/app/pocket-smile-TBJi/italy) - [Japan](https://apptail.io/app/pocket-smile-TBJi/japan) - [South Korea](https://apptail.io/app/pocket-smile-TBJi/south-korea) - [Kazakhstan](https://apptail.io/app/pocket-smile-TBJi/kazakhstan) - [Lebanon](https://apptail.io/app/pocket-smile-TBJi/lebanon) - [Latvia](https://apptail.io/app/pocket-smile-TBJi/latvia) - [Mexico](https://apptail.io/app/pocket-smile-TBJi/mexico) - [Malaysia](https://apptail.io/app/pocket-smile-TBJi/malaysia) - [Netherlands](https://apptail.io/app/pocket-smile-TBJi/netherlands) - [Norway](https://apptail.io/app/pocket-smile-TBJi/norway) - [New Zealand](https://apptail.io/app/pocket-smile-TBJi/new-zealand) - [Peru](https://apptail.io/app/pocket-smile-TBJi/peru) - [Philippines](https://apptail.io/app/pocket-smile-TBJi/philippines) - [Pakistan](https://apptail.io/app/pocket-smile-TBJi/pakistan) - [Poland](https://apptail.io/app/pocket-smile-TBJi/poland) - [Portugal](https://apptail.io/app/pocket-smile-TBJi/portugal) - [Russia](https://apptail.io/app/pocket-smile-TBJi/russia) - [Saudi Arabia](https://apptail.io/app/pocket-smile-TBJi/saudi-arabia) - [Sweden](https://apptail.io/app/pocket-smile-TBJi/sweden) - [Singapore](https://apptail.io/app/pocket-smile-TBJi/singapore) - [Thailand](https://apptail.io/app/pocket-smile-TBJi/thailand) - [Türkiye](https://apptail.io/app/pocket-smile-TBJi/turkey) - [Taiwan](https://apptail.io/app/pocket-smile-TBJi/taiwan) - [Ukraine](https://apptail.io/app/pocket-smile-TBJi/ukraine) - [United States](https://apptail.io/app/pocket-smile-TBJi/united-states) - [Vietnam](https://apptail.io/app/pocket-smile-TBJi/vietnam) - [United Arab Emirates](https://apptail.io/app/pocket-smile-TBJi/united-arab-emirates) - [South Africa](https://apptail.io/app/pocket-smile-TBJi/south-africa) - [Argentina](https://apptail.io/app/pocket-smile-TBJi/argentina) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*