• Accurate Time Measurement
• You can measure your study time accurately by flipping your phone over.
• FLIP helps you increase your concentration by measuring your focus level.
• Measure your study time with mini-window feature while using dictionary or watching video lecture.
• Check your weekly and monthly study time as well as today's.
• The timeline shows you the goals you've measured today in chronological order.
• Use the Timetable to automatically summarize today's measured goals!
• You can see all of today's measured goals at a glance
• It shows you the details of your daily study.
• D-day (New feature)
• You can see easily how many days are left before your due date.
• Organize your study time in dail, weekly, or monthly, and share on Facebook, Instagram and others with just one button!
• Register school in your profile, and check out the ranking of your school!
• Register your school timetable or your own study routine! 

• How many people are studying now? Check out "Live" from measuring screen!
• You can see who's studying in real time!
• Best study time management app recognized by 1 million users
• Use FLIP premium to make smart phone even more useful.

DOWNLOAD

• 30+ cuecard with audio
• Record and save your answer
• Ielts speaking tips & tricks
• Detail speaking band scores
• Share samples/answers/questions
• Easy to search cue cards
• Learn english and improve your vocabulary.
• Many ideas for speaking test
• All vocabularies are categorized so that learners can practice and summarize easily.
• Dark mode supported
• 1000+ cue card with sample answers.
• 60+ ielts speaking (part 1, part 2 and part 3)
• Part 1, 2, 3 questions and answers
• Ielts speaking vocabulary: 20 common topics
• Study anywhere and anytime and get the desired band score in the ielts speaking test! 

• Use tips and tricks
• Practice with questions and tests
• Get ideas from tips and sample answers

• Linguist-approved language courses
• Content aligned with international standards
• Practical, real-world conversations
• Native-speaker audio
• Individualized Review System
• Interactive listening and reading exercises
• Essential cultural insights
• Designed with ADA standards in mind
• Bluetooth syncing
• Auto play for on-the-go learning
• Pre-downloadable lessons
• 24/7 customer support 

• Our new Study Reminders will help you maintain a consistent study routine. 
• To keep your language journey top of mind, select the days of the week and the time you want to be reminded.
• We fixed a few things behind the scenes to keep your Mango app running smoothly.

Mathematiqa

• Download APK
• Install normally; Open it
• Enjoy the app and support dev - playstore😃  

• Completely new user interface
• 45000 stars plus optionally 2.5 mio stars for download
• Photorealistic display of the night and day sky with correctly illuminated landscape.
• Augumented sky view using your device's camera
• 3D-view of the Solar System
• Cardboard viewing of the night sky or the Solar System in 3D
• Map of the Earth showing day and night
• Daily notifications of current celestial events
• More than 60000 Minor Planets with daily updates of orbital parameters
• More than 1000 Comets with daily updates
• Artificial Satellites including the International Space Station (ISS)
• Live mode (point device on sky and get information on what you see)
• Calendar showing detailed descriptions of celestial events
• Push celestial events to your phone's calendar and set a reminder alarm
• Position of any object in the sky (altitude and direction)
• Twilight times, length of day
•  Mobile Observatory is the only app on Android which renders the sky physically correct, taking into account atmospheric scattering. 
• and much much more... 

• Important: Please re-download the Minor Planets and Comets database
• Fixed a bug when calculating comet magnitudes
• New events: Begin of morning/evening visibility, Best morning/evening visibility
• Fixed crash on event page
• Give a shot to Stellarium Mobile Sky Map Full APK