Flat Earth Sun, Moon & Zodiac
74
Quality Score
Strong
✍️ Bumetric analysis
“
Flat Earth Sun, Moon & Zodiac is an iOS app from Blue Water Bay in the Education category, currently rated 4.7★ across 2,178 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 74: Strong (healthy traction). For a Education app, that means healthy traction. The full BU Investment Matrix below scores 8 dimensions including monetisation, growth, and operational risk.
Track changes month-over-month in the Performance section below: live snapshot history and revenue forecast included.
💰 Monthly revenue · now vs forecast
● Right now
$9.4K
per month
→
12-mo forecast
$9.7K – $20.4K
per month
→
24-mo forecast
$12.0K – $36.1K
per month
MID tier
💡 Grow this revenue
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
Typical impact: +2-5× organic installs
📊 Performance Tracking LIVE
96 snapshots on record
Rating
4.7
Reviews
2,178 reviews
Forecast Revenue / mo
$9.4K
Snapshots tracked
96
since Nov 2018
🤖Also on Android
$602/mo · 4K ratings · 4.4★
View →
ONE-TIME · BUILD
💰 Estimated build cost
$155K
↳ What it cost to build · not monthly revenue
Likely range $115K – $210K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~1.3y at current MRR
Synthetic estimate. Inputs: category complexity, file size, screen count, monetization layer, platform reach, age × team-size proxy. Calibrated against 2024-2026 indie-agency rate surveys. Full math + source list on /methodology.
Where the money goes
| 🧱 MVP baseline (design + 1-store ship) | +$28K |
| 📱 5 unique screens × $4.5K | +$22K |
| 📦 Asset bundle (304 MB) | +$40K |
| ⚙ Education complexity ×1.20 | +$18K |
| ⚙ 7.9y maintenance × ~1-person team | +$47K |
Total estimate
$155K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$200K
↳ What it would sell for · not monthly revenue
Marketplace range $150K – $275K · 22× MRR multiple
💸
~1.3× build cost (break-even+)
Synthetic estimate. Multiple band derived from ad-supported + age, rating quality, category demand, and user-base maturity. Calibrated against 2024-2026 indie-app-marketplace closed-deal medians. Full math + comparable deal list on /methodology.
How the multiple was built
| 📺 Ad-supported base | 15× MRR |
| 📅 7.9y proven track record | +20% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Education category multiple | +6% |
Final multiple
22× MRR
👥 Estimated audience size
125K
Lifetime downloads (US-equivalent)
Monthly active
14K
Daily active
4.3K
Synthetic estimate from ratings × category benchmarks. Calibrated against 2024-2026 mobile-attribution retention + DAU/MAU reports. Numbers are US-storefront-equivalent — true global audience can be 5-10× larger for international apps. Full math + source list on /methodology.
How we sized it
| 📲 Education engagement | ~85 installs / rating |
| 📅 7.9y of rating accumulation | -30% |
| 🔁 Education D30 retention | 18% |
| 📍 DAU / MAU stickiness | 0.30 |
DAU / MAU
30% sticky
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
Medium confidence · 55%
Also possible
React Native
Flutter
Heuristic guess from app bundle size, category, store description signals, and release-date stack era. Bumetric does not disassemble binaries — for binary-level certainty you would need an SDK intelligence tool or the manifest itself. Reasoning chain on the right. Full ruleset on /methodology.
Signals we read
| 📦 App bundle size | 304 MB |
| 🏷 Category context | Education |
| 📦 Large iOS bundle | → Native Swift / UIKit (pre-2020 era) + assets |
💀 Maintenance status
Active
5%
Last shipped 2026-09-12 · 11 days ago
0 · Active
50 · At risk
100 · Abandoned
Heuristic risk score from time-since-last-update + ratings velocity proxy + Editor's Choice / curated featuring signals. Calibrated against 2024-2025 app-store ranking decay reports. Not a guarantee — a quiet app with a healthy codebase looks the same as an abandoned one until something breaks. Full math on /methodology.
Risk signals
| 📅 11 days since last update | Active development |
Verdict
Active
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$9.4K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$8.9K – $14.9K
12 months
$9.7K – $20.4K
24 months
$12.0K – $36.1K
Compound growth at +4.0% MoM (tier baseline for MID). Range widens with horizon — typical noise band ±25% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Below median · 52/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
5.7
Product Quality
8.5
Revenue Strength
4.0
Monetization Maturity
1.0
Defensibility
5.5
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $6K - $14K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.71★ across 2,178 reviews — strong (top 10%).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: dev shipping weekly.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Mixed picture. Worth competing if you have a clear UX or pricing edge — otherwise crowded segment.
💵 For acquirers: Estimated asking range 18-32× monthly = $169K-$300K. Portfolio play ($56K/mo combined) commands premium.
Composite of 8 dimensions computed deterministically from public signals — no LLM, every score traces back to a measurable input. Default weights shown; "compete" / "acquire" / "invest" lenses re-weight without re-fetching.
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 14 of 14 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($5.99)METRIC | +$2,800 | |
| subscriptionREVIEW | +$2,500 | |
| premiumREVIEW | +$2,200 | |
| Excellent rating (4.7★)METRIC | +$2,200 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Low install base (2,178 ratings)METRIC | +$1,500 | |
| Multilingual (22 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| support teamREVIEW | +$900 | |
| Established app (7y old)METRIC | +$800 |
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.
🆕 What's New · v6.7.8
1. Users registered on website sync with app(Android + iOS) now, Website subscribed users will be able to use all paid features of app.
2. New message Badge is updating now (Chat system)
3. Push notification whenever new message arrive in Chat window.
4.… Full release notes →
2. New message Badge is updating now (Chat system)
3. Push notification whenever new message arrive in Chat window.
4.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Flat Earth Sun, Moon & Zodiac
- Developer
- Blue Water Bay
- Bundle ID
- com.FlatEarthSunMoonClock
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 17+
- Languages
- AR, BG, NL, EN, FI, FR, DE, EL, HI, HU, IT, JA, LT, MS, NB, PT, RU, ZH, ES, SV, ZH, TR
Company
- Website
- Not found
- Tagline
- Today
- Description
- Find apps and games for iPhone, iPad, Mac, and more on the App Store.
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Available
Revenue
- Reported revenue signal / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- Model estimate / mo
- $9.4K/mo
- Top-grossing rank
- Outside top 100 in US Education
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Founder data not yet collected for this app.
Funding
Funding data not yet collected for this app.
Press & Links
Press & Links data not yet collected for this app.
Contacts & Socials
Contacts & Socials data not yet collected for this app.
📈Ratings growth2,215 ratings+548% lifetimeShow 3-year history estimate ▾
Tracked (60 weeks) Pre-tracking estimate (0 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
💰Pricing History$0.00 → $5.99 (+0%)
🚀Update Frequency · Releases per Quarter4 releases tracked
🚀Version Release Timeline4 releases tracked
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.
📝 About this app
Flat Earth Sun & Moon Clock: A Conceptual Exploration of Time, Sky, and Seasons
The Flat Earth Sun & Moon Clock lets you track the sun and moon's positions across the AE (Azimuthal Equidistant) map. Observe the rhythm of day and night, and watch the sun’s 28-day cycle lap the moon. Explore seasonal changes as the sun moves between the Tropic of Capricorn and Cancer, and gain insights into celestial mechanics from an alternative perspective.
Key Features:
• Friend Finder:
• Featured Video: Daily educational content on the sky clock, with an archive to revisit past videos.… View full description on the official store →
The Flat Earth Sun & Moon Clock lets you track the sun and moon's positions across the AE (Azimuthal Equidistant) map. Observe the rhythm of day and night, and watch the sun’s 28-day cycle lap the moon. Explore seasonal changes as the sun moves between the Tropic of Capricorn and Cancer, and gain insights into celestial mechanics from an alternative perspective.
Key Features:
• Friend Finder:
• Featured Video: Daily educational content on the sky clock, with an archive to revisit past videos.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 304 MB🔞 17+📱 iOS 16.0+🔖 v6.7.8🔄 updated 1w ago🌐 AR, BG, NL, EN, FI +17📂 Education💰 Paid🚀 Launched 2018 (7y old)
📅
What Worked™ · Development Pipeline
19 EVENTS TRACKEDDetected changes in this app over its tracked lifetime — each event links cause (what changed) to effect (what moved). Sorted newest first.See full history →Version history →
2026-09
🔧
Shipped update — v6.7.7 → v6.7.8
→ 30 days after: reviews +22 high confidence
2026-08
🔧
Shipped update — v6.7.5 → v6.7.7
→ 30 days after: reviews +52 high confidence
2026-07
💲
Price ↑ $2.99 → $5.99 (+100%)
→ 30 days after: reviews +30 high confidence
2026-06
🔧
Shipped update — v6.7.2 → v6.7.5
→ 30 days after: revenue +$27.0K/mo · reviews +15 medium · co-occurring
2026-05
⭐
Rating ↑ 4.04 → 4.71 (improved 0.67★)
→ 30 days after: reviews +8 high confidence
2026-05
📈
Crossed 1,000 ratings — social-proof flywheel kicking in
→ 30 days after: reviews +8 high confidence
2026-05
💲
Went paid — introduced $2.99 price point
→ 30 days after: reviews +8 high confidence
2026-03
⭐
Rating ↓ 4.50 → 4.04 (dropped 0.46★)
→ 30 days after: revenue −$97.0K/mo · rating −0.46★ · reviews −1,624 medium · co-occurring
2026-03
📈
Crossed 500 ratings — social-proof flywheel kicking in
2026-03
⭐
Rating ↑ 4.05 → 4.50 (improved 0.45★)
2019-05
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$182/mo high confidence
2019-05
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$964/mo · rating +0.17★ · reviews +16 high confidence
2018-12
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$948/mo · rating +0.29★ · reviews +16 high confidence
2018-12
⭐
Rating ↑ 2.11 → 3.04 (improved 0.93★)
→ 30 days after: revenue +$948/mo · rating +0.29★ · reviews +16 high confidence
2018-12
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$1.7K/mo · rating +0.93★ · reviews +30 medium · co-occurring
2018-11
🚀
First tracked snapshot — initial data captured
→ 30 days after: revenue +$1.7K/mo · rating +0.93★ · reviews +30 low · multiple changes
2018-11
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$1.7K/mo · rating +0.93★ · reviews +30 medium · co-occurring
2018-11
⭐
Rating ↓ 5.00 → 3.67 (dropped 1.33★)
→ 30 days after: revenue +$1.7K/mo · rating +0.93★ · reviews +30 medium · co-occurring
2018-11
🚀
First tracked snapshot — initial data captured
→ 30 days after: revenue +$1.7K/mo · rating +0.93★ · reviews +30 medium · co-occurring
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.76142★ | 197 | 4.76142★ this version |
| 🇧🇷 BR | 3.83333★ | 12 | 3.83333★ this version |
| 🇨🇦 CA | 4.73664★ | 262 | 4.73664★ this version |
| 🇩🇪 DE | 4.4375★ | 48 | 4.4375★ this version |
| 🇫🇷 FR | 4.38462★ | 26 | 4.38462★ this version |
| 🇬🇧 GB | 4.72222★ | 288 | 4.72222★ this version |
| 🇮🇳 IN | 4.71429★ | 7 | 4.71429★ this version |
| 🇯🇵 JP | 4.85714★ | 14 | 4.85714★ this version |
| 🇺🇸 US | 4.71744★ | 2,219 | 4.71744★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Flat Earth Sun, Moon & Zodiac: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Blue Water Bay
View all →📦 Portfolio summaryINDIE studio
2apps·$19K/mocombined
Lead-app heavy — top app contributes 51%
About this analysis
Why medium confidence: 2,178 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Flat Earth Sun, Moon & Zodiac make per month?▴
Based on our ML-calibrated revenue forecast, Flat Earth Sun, Moon & Zodiac earns approximately $9.4K/mo. This is a US-storefront-equivalent estimate; global revenue can be several times larger for internationally-distributed apps. See the methodology page for the full formula and confidence bands.
Is Flat Earth Sun, Moon & Zodiac profitable?▴
With estimated build cost $155K and monthly revenue $9.4K, Flat Earth Sun, Moon & Zodiac looks break-even-grade — payback period sits around 1.3 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Flat Earth Sun, Moon & Zodiac have?▴
Estimated audience: ~125K lifetime downloads, ~14K monthly active users, and ~4K daily active users. Derived from ratings count × category installs-per-rating × age decay. US-storefront-equivalent — global audience can be 5-10× larger for internationally-distributed apps.
What apps are like Flat Earth Sun, Moon & Zodiac?▴
Browse the full Education category catalog to find similar apps with revenue, build cost, audience and tech stack data. Each /p/{slug} page also shows a Compare side-by-side widget with three peer apps from the same niche.
What is Flat Earth Sun, Moon & Zodiac built with?▴
Our heuristic places Flat Earth Sun, Moon & Zodiac on the Native iOS (Swift / UIKit) stack (Medium confidence, 55%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: React Native, Flutter.
Is Flat Earth Sun, Moon & Zodiac still actively maintained?▴
Maintenance status: Active (5% abandonment risk). Last shipped version was 11 days ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Flat Earth Sun, Moon & Zodiac sell for?▴
Estimated acquisition value: $200K (marketplace range $150K – $275K). Calculated as 22× monthly revenue using the standard multiple for the detected monetization model + adjustments for age, rating quality and category demand. Calibrated against 2024-2026 Flippa / Acquire.com / MicroAcquire closed-deal medians.
When was Flat Earth Sun, Moon & Zodiac last updated?▴
Flat Earth Sun, Moon & Zodiac last shipped a new version on 2026-09-12 — less than a month ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Flat Earth Sun, Moon & Zodiac?▴
Flat Earth Sun, Moon & Zodiac is published by Blue Water Bay on the Apple App Store. See the full publisher portfolio (other apps by the same developer) via the More by developer block on the product page above.
What is Flat Earth Sun, Moon & Zodiac's BU Score?▴
Flat Earth Sun, Moon & Zodiac has a BU Score of 74/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.