71
BU Score
Strong
FLIP - Focus Timer for Study
✍️ bumetric analysis
“
FLIP - Focus Timer for Study is an Android app from RinaSoft in the Education category, currently rated 4.3★ across 38,025 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Our BU Score puts it at 71: Strong (healthy traction). For a Education app, that means healthy traction.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (38,025 ratings)METRIC | +$5,500 | |
| Mature app (8y old)METRIC | +$1,500 | |
| Good rating (4.3★)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v1.22.50🔄 updated 1mo ago📂 Education💰 Free📺 Ad-supported💎 IAP $1.99 - $18.00 per item🚀 Launched 2017 (8y old)
📝 About this app
⭐⭐⭐Best study time management app recognized by 5 million users⭐⭐⭐
⭐⭐⭐FLIP can improve your study habits in a short period!⭐⭐⭐
If you can't pay attention to your study, read, or work, use FLIP!
Manage your daily repetitive work & study time and habits with FLIP!
<font color="#8A50B1">Focus level measure timer, <b>FLIP</b>!</font>
🌸<b> Global Study Group <b>🌸
You can meet study mates from all over the world!
Make friends and achieve your dream goal together!
🍀<b> Global board; The FLIP TALK! </b>🍀
Talk with friends around the word;
You can share your stories, encourage each other, and study together!
- Accurate Time Measurement
You can measure your study time accurately by flipping your phone over.
- Focus Level Measurement
Check your focus level!
FLIP helps you increase your concentration by measuring your focus level.
- Mini-window Feature
Measure your study time with mini-window feature while using dictionary or watching video lecture.
- Statistics
Check your weekly and monthly study time as well as today's.
- Timeline
The timeline shows you the goals you've measured today in chronological order.
- Timetable
Use the Timetable to automatically summarize today's measured goals!
You can see all of today's measured goals at a glance.
- Daily Report
FLIP shows you the details of your daily study.
- D-day (New feature)
Set your D-Day!
You can see easily how many days are left before your due date.
- Easy sharing of SNS
Organize your study time in dail, weekly, or monthly, and share on Facebook, Instagram and others with just one button!
- Real-time study : LIVE!
How many people are studying now? Check out Live from measuring screen!
You can see who's studying in real time!
- School Ranking
Register school in your profile, and check out the ranking of your school!
- Study Schedule
Register your school timetable or your own study routine!
- To-do List
What do I need to do today? Ultimate task management to make it easy to manage your daily study, work, or homework!
FLIP uses pomodoro techniques, and determine the focus level according to the number of breaks compared to the focus duration.
Use FLIP to make smart phone even more useful.
FLIP is more effective when used in conjunction with UBhind.</b></b>
⭐⭐⭐FLIP can improve your study habits in a short period!⭐⭐⭐
If you can't pay attention to your study, read, or work, use FLIP!
Manage your daily repetitive work & study time and habits with FLIP!
<font color="#8A50B1">Focus level measure timer, <b>FLIP</b>!</font>
🌸<b> Global Study Group <b>🌸
You can meet study mates from all over the world!
Make friends and achieve your dream goal together!
🍀<b> Global board; The FLIP TALK! </b>🍀
Talk with friends around the word;
You can share your stories, encourage each other, and study together!
- Accurate Time Measurement
You can measure your study time accurately by flipping your phone over.
- Focus Level Measurement
Check your focus level!
FLIP helps you increase your concentration by measuring your focus level.
- Mini-window Feature
Measure your study time with mini-window feature while using dictionary or watching video lecture.
- Statistics
Check your weekly and monthly study time as well as today's.
- Timeline
The timeline shows you the goals you've measured today in chronological order.
- Timetable
Use the Timetable to automatically summarize today's measured goals!
You can see all of today's measured goals at a glance.
- Daily Report
FLIP shows you the details of your daily study.
- D-day (New feature)
Set your D-Day!
You can see easily how many days are left before your due date.
- Easy sharing of SNS
Organize your study time in dail, weekly, or monthly, and share on Facebook, Instagram and others with just one button!
- Real-time study : LIVE!
How many people are studying now? Check out Live from measuring screen!
You can see who's studying in real time!
- School Ranking
Register school in your profile, and check out the ranking of your school!
- Study Schedule
Register your school timetable or your own study routine!
- To-do List
What do I need to do today? Ultimate task management to make it easy to manage your daily study, work, or homework!
FLIP uses pomodoro techniques, and determine the focus level according to the number of breaks compared to the focus duration.
Use FLIP to make smart phone even more useful.
FLIP is more effective when used in conjunction with UBhind.</b></b>
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- FLIP - Focus Timer for Study
- Developer
- RinaSoft
- Bundle ID
- kr.co.rinasoft.yktime
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- www.flipfocus.co.kr
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
Revenue
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $1.4K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $1.99 - $18.00 per item
Founder
- Name
- Not found
- X / Twitter
- Not found
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- Not found
- Not found
- Phone
- Not found
- Contact page
- Not found
- About page
- Not found
📈Ratings growth38,025 ratings+31% lifetimeShow 3-year history estimate ▾
Tracked (1 weeks) Pre-tracking estimate (37 weeks) · model-based, ±5% noise · anchored to release date and current value
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
Full revenue analysis
Read the article-style breakdown for FLIP - Focus Timer for Study: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.