46
Quality Score
Emerging
Sunfollower
✍️ bumetric analysis
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Sunfollower is an iOS app from Evgeny Vostrikov in the Photo & Video category, currently rated 4.1★ across 12 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 46: Emerging (early traction worth watching). For a Photo & Video app, that means early traction worth watching. 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.
💰 Revenue · today and ahead
Today
$1.4K/mo
In 12 months
$1.2K – $4.5K
In 24 months
$1.2K – $10.4K
INDIE tierFREE
💡 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
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
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
📈Slow ROI — current MRR is well below build cost
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 |
| ⚙Photo & Video complexity ×1.55 | +$27K |
| ⚙13.1y maintenance × ~1-person team | +$78K |
Total estimate$155K
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
High confidence · 80%
Also possible
Native iOS (SwiftUI)
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 | 22 MB |
| 🏷Category context | Photo & Video |
| 📦Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Likely abandoned
95%
Last shipped 2019-01-14 · 2686 days ago
0 · Active50 · At risk100 · 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
| 📅7y+ since last update | Likely abandoned |
| 👥Small user base (12 ratings) + 13.1y old | +10% (solo-project pattern) |
| •13y old + 1y+ no update | +5% (API deprecation drift) |
VerdictLikely abandoned
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$1.4K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition, review-mined risks present
6 months
$1.2K – $2.8K
12 months
$1.2K – $4.5K
24 months
$1.2K – $10.4K
Compound growth at +6.0% MoM (tier baseline for INDIE). Range widens with horizon — typical noise band ±40% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊
BU Investment Matrix
Pre-traction · 28/100INDIE TIERFREE (NO MONETIZATION)limited signalGrowth Velocity
5.0
Founder Strength
3.7
Product Quality
3.3
Revenue Strength
3.2
Monetization Maturity
0.5
Defensibility
4.5
Market Position
2.0
Operational Safety
0.3
- 💰 Revenue: Modest — $569 - $3560/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.08★ across 12 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 2683d ago — possibly dormant.
- ⚠️ Risk: High — 6.7% refund mentions, dormant (2683d since update).
🎯 For competitors: Vulnerable. Quality drift + slow updates create a clear opening for a fresh competitor with active dev cadence.
💵 For acquirers: Estimated asking range 12-22× monthly = $17K-$31K. Discount applied for operational risk..
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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Mature app (13y old)METRIC | +$1,500 | |
| Good rating (4.1★)METRIC | +$800 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (12 ratings)METRIC | −$300 |
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.
App Specs
🔐 Own this app? Claim & verify MRR →💾 22 MB🔞 4+📱 iOS 10.0+🔖 v1.9.0🔄 updated 7y ago🌐 EN📂 Photo & Video💰 Paid🚀 Launched 2013 (13y old)
📝 About this app
Sunrise, sunset and sun direction for any day at any location.
Key features:
- Instantly see how sunrise and sunset positions change throughout the year
- Interactive Augmented Reality view screen. Tap on the screen and the application will calculate when the Sun is at that position.
- Civil, nautical, astronomical twilight times
- Elevation and azimuth of the Sun
- Shadow ratio
Notes:
Maps require data connection.
Please ensure that Compass calibration in the System Settings on your device is switched ON. The app will work more accurately with it.… View full description on the official store →
Key features:
- Instantly see how sunrise and sunset positions change throughout the year
- Interactive Augmented Reality view screen. Tap on the screen and the application will calculate when the Sun is at that position.
- Civil, nautical, astronomical twilight times
- Elevation and azimuth of the Sun
- Shadow ratio
Notes:
Maps require data connection.
Please ensure that Compass calibration in the System Settings on your device is switched ON. The app will work more accurately with it.… View full description on the official store →
🆕 What's New · v1.9.0
- Fixed issues with AR camera on iPhone X
- Removed cloud sync
- Removed cloud sync
📅
What Worked™ · Development Pipeline
4 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 →
2018-09
📈
Crossed 10 ratings — social-proof flywheel kicking in
2016-03
⭐
Rating ↓ 4.80 → 4.17 (dropped 0.63★)
2013-09
⭐
Rating ↓ 5.00 → 4.50 (dropped 0.50★)
2013-08
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 30 reviews across 6 markets● 70% positive · ● 20% neutral · ● 10% negative · Rating drift: +0.19★ (improving — recent 50: 4.27★ vs lifetime: 4.08★)
Sentiment by country (−1 to +1)
🇬🇧 GB
+0.65
🇺🇸 US
+0.54
🇫🇷 FR
+0.46
🇦🇺 AU
+0.43
🇩🇪 DE
+0.13
🇯🇵 JP
+0.00
Top praise themes
sun ×9 location ×4 works ×4 der ×4 sunset ×3 one ×3 mode ×3 camera ×3
Top complaint themes
— no recurring complaint themes
Risk signals
Refund mentions: 6.7%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4★ | 2 | 4★ this version |
| 🇧🇷 BR | 5★ | 1 | 5★ this version |
| 🇨🇦 CA | 5★ | 1 | 5★ this version |
| 🇩🇪 DE | 5★ | 4 | 5★ this version |
| 🇫🇷 FR | 4.33333★ | 3 | 4.33333★ this version |
| 🇬🇧 GB | 4.16667★ | 6 | 4.16667★ this version |
| 🇮🇳 IN | 0★ | 0 | — |
| 🇯🇵 JP | 5★ | 1 | 5★ this version |
| 🇺🇸 US | 4.08333★ | 12 | 4.08333★ this version |
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Sunfollower
- Developer
- Evgeny Vostrikov
- Bundle ID
- com.evsoft.sunfollower
- App Store URL
- Open in App Store
- Category
- Photo & Video
- Content rating
- 4+
- Languages
- EN
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
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $459/mo
- Top-grossing rank
- Outside top 100 in US Photo & Video
- 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.
⭐Recent App Store Reviews12 latest · avg 4.0★ · 50.0% 5★ · 8.3% 1★
5★6 (50%)
4★2 (17%)
3★3 (25%)
2★0 (0%)
1★1 (8%)
+1 ratings/week
Praise: great ×3 amazing ×1 excellent ×1 perfect ×1
Top positive
★★★★★ Neat app
Very cool app. Neat to see the progression of the sun through the day.…
★★★★★ Just what I needed
Very cool app for photography. It would be great if there were an option for 12 hour display rather than just 24 hour. Also, does it factor in Daylight savings time as well?…
Top negative
★☆☆☆☆ Piece of absolute
Don't buy…
★★★☆☆ Adapt to different phone lenses
Adapt to different phone lenses…
📈Ratings growth12 ratings+1100% lifetimeShow 3-year history estimate ▾
Tracked (15 weeks) Pre-tracking estimate (36 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 → $2.99 (+0%)
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 Sunfollower: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
❓ Frequently Asked Questions
8 answers · auto-generated from this app's public dataHow much does Sunfollower make per month?▾
Based on our ML-calibrated revenue forecast, Sunfollower earns approximately $459/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 Sunfollower profitable?▾
With estimated build cost $155K and monthly revenue $459, Sunfollower looks well below break-even — current monthly revenue is much smaller than the estimated build cost. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
What apps are like Sunfollower?▾
Browse the full Photo & Video 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 Sunfollower built with?▾
Our heuristic places Sunfollower on the Native iOS (Swift / UIKit) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Native iOS (SwiftUI).
Is Sunfollower still actively maintained?▾
Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 7+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
When was Sunfollower last updated?▾
Sunfollower last shipped a new version on 2019-01-14 — more than 7 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Sunfollower?▾
Sunfollower is published by Evgeny Vostrikov 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 Sunfollower's BU Score?▾
Sunfollower has a BU Score of 46/100 (Emerging). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.