50
BU Score
Solid
Timeline: Play and learn
✍️ bumetric analysis
“
Timeline: Play and learn is an Android app from Happy Rainbow in the Card category, currently rated 4.0★ across 110 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Our BU Score puts it at 50: Solid (established niche player). For a Card app, that means established niche player.
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:
| Mature app (10y old)METRIC | +$1,500 | |
| Good rating (4.0★)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (110 ratings)METRIC | +$400 |
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 →🔖 v1.3.14🔄 updated 4y ago📂 Card💰 Free📺 Ad-supported💎 IAP $0.99 - $1.99 per item🚀 Launched 2015 (10y old)
📝 About this app
Do you know when the car was invented? Was it before or after motorcycles? You will learn the answer to this question and many more playing this game!
Each card has an event and an associated date. Try to put them in the correct order.
Easy to learn, hard to master... it gets harder after each card played!
Features:
★ learn in a fun way. Learn a lot of things and have fun at the same time. The kids will love it!
★ simple and amazing gameplay. Touch the arrows to move the cards. Touch the card to place it in the timeline.
★ many hours of fun and mental exercise
★ a lot of events!
★ warning: incredibly addictive and fun!
Do you know when the wheel was invented? And the toaster? Mobile phone? And the cannon? Coffee machine? Statue of Liberty? Eiffel Tower? So you need to play this game right now! A lot of cards and more coming soon!
If you like quiz or trivia games you will love this game, for sure! A trivia that the whole family can play and have a lot of fun together.
It's great playful and educational way to learn new things anytime you want.
Challenge yourself to guess all the dates. Test your knowledge! Be the best!
From the same developers of "Book Of Enigmas"
And... it's free!
Each card has an event and an associated date. Try to put them in the correct order.
Easy to learn, hard to master... it gets harder after each card played!
Features:
★ learn in a fun way. Learn a lot of things and have fun at the same time. The kids will love it!
★ simple and amazing gameplay. Touch the arrows to move the cards. Touch the card to place it in the timeline.
★ many hours of fun and mental exercise
★ a lot of events!
★ warning: incredibly addictive and fun!
Do you know when the wheel was invented? And the toaster? Mobile phone? And the cannon? Coffee machine? Statue of Liberty? Eiffel Tower? So you need to play this game right now! A lot of cards and more coming soon!
If you like quiz or trivia games you will love this game, for sure! A trivia that the whole family can play and have a lot of fun together.
It's great playful and educational way to learn new things anytime you want.
Challenge yourself to guess all the dates. Test your knowledge! Be the best!
From the same developers of "Book Of Enigmas"
And... it's free!
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Timeline: Play and learn
- Developer
- Happy Rainbow
- Bundle ID
- br.com.happyrainbow.Timeline
- App Store URL
- Open in App Store
- Category
- Card
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- happyrainbowgames.wix.com
- 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
- $237/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- $0.99 - $1.99 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 growth110 ratings+34% 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.
More by Happy Rainbow
View all →
Full revenue analysis
Read the article-style breakdown for Timeline: Play and learn: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.