Safe Lock: рrivate рhoto vault
80
Quality Score
Excellent
Safe Lock: рrivate рhoto vault
by Katerina Akhlebinina
High confidence
✍️ Bumetric analysis
“
Safe Lock: рrivate рhoto vault is an iOS app from Katerina Akhlebinina in the Photo & Video category, currently rated 4.8★ across 24,365 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 80: Excellent (strong product-market fit). For a Photo & Video app, that means strong product-market fit. 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
$5.0K
per month
→
12-mo forecast
$5.2K – $10.8K
per month
→
24-mo forecast
$6.4K – $19.2K
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
61 snapshots on record
Rating
4.8
Reviews
24,365 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
61
since Jul 2023
ONE-TIME · BUILD
💰 Estimated build cost
$145K
↳ What it cost to build · not monthly revenue
Likely range $110K – $195K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~2.4y 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 (66 MB) | +$6K |
| ⚙ Photo & Video complexity ×1.55 | +$31K |
| ⚙ 9.5y maintenance × ~1-person team | +$57K |
Total estimate
$145K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$100K
↳ What it would sell for · not monthly revenue
Marketplace range $75K – $125K · 21× MRR multiple
💸
~0.7× build cost (under-water)
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 |
| 📅 9.5y proven track record | +20% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
Final multiple
21× MRR
👥 Estimated audience size
2.4M
Lifetime downloads (US-equivalent)
Monthly active
230K
Daily active
69K
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
| 📲 Photo & Video engagement | ~140 installs / rating |
| 📅 9.5y of rating accumulation | -30% |
| 🔁 Photo & Video D30 retention | 18% |
| 📍 DAU / MAU stickiness | 0.30 |
DAU / MAU
30% sticky
🛠 Estimated tech stack
🍎
Native iOS (Swift / UIKit)
Medium confidence · 70%
Also possible
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 | 66 MB |
| 🏷 Category context | Photo & Video |
| 📦 Small-mid iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Active
15%
Last shipped 2026-08-17 · 38 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
| 📅 38 days since last update | Healthy release cadence |
Verdict
Active
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$5.0K/mo · ML-estimated from 234 triggers
Growth rate
+4.0% MoM · MID tier baseline (compound monthly)
6 months
$4.7K – $7.9K
12 months
$5.2K – $10.8K
24 months
$6.4K – $19.2K
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
9.6
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
4.4
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.82★ across 24,365 reviews — exceptional (top 1% in category).
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ 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 = $90K-$160K. Portfolio play ($47K/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 13 of 13 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Mid install base (24,365 ratings)METRIC | +$5,500 | |
| subscriptionREVIEW | +$2,500 | |
| premiumREVIEW | +$2,200 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| securityREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Multilingual (13 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| annoying adsREVIEW | −$1,100 | |
| 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.
🆕 What's New · v3.1
We’ve made the app smoother and easier to use with a few new features and improvements:
- Added support for animated WebP images.
- Improved Face ID on iOS 26 for a more reliable unlocking experience.… Full release notes →
- Added support for animated WebP images.
- Improved Face ID on iOS 26 for a more reliable unlocking experience.… Full release notes →
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Safe Lock: рrivate рhoto vault
- Developer
- Katerina Akhlebinina
- Bundle ID
- com.appslab.safelock
- App Store URL
- Open in App Store
- Category
- Photo & Video
- Content rating
- 4+
- Languages
- AR, EN, FR, DE, IT, JA, KO, PT, RU, ZH, ES, TR, UK
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
- $5.0K/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.
📈Ratings growth24,743 ratings+12589% 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.
🚀Update Frequency · Releases per Quarter2 releases tracked
🚀Version Release Timeline2 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
* Safe Lock - Private Photo Vault: The Ultimate Photo Hiding App and Gallery Lock *
Looking for a reliable solution to protect your personal photos and videos?
Safe Lock - Private Photo Vault, the most secure and private app in the App Store. With features like PIN-code, Touch ID, Face ID, DotLock, numeric, or alphabetic passwords, this app ensures your hidden photo album remains locked and inaccessible to prying eyes.
Safe Lock - Private Photo Vault offers a secret folders where you can securely store your private photos, videos and notes.… View full description on the official store →
Looking for a reliable solution to protect your personal photos and videos?
Safe Lock - Private Photo Vault, the most secure and private app in the App Store. With features like PIN-code, Touch ID, Face ID, DotLock, numeric, or alphabetic passwords, this app ensures your hidden photo album remains locked and inaccessible to prying eyes.
Safe Lock - Private Photo Vault offers a secret folders where you can securely store your private photos, videos and notes.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 66 MB🔞 4+📱 iOS 12.0+🔖 v3.1🔄 updated 1mo ago🌐 AR, EN, FR, DE, IT +8📂 Photo & Video💰 Paid🚀 Launched 2017 (9y old)
📅
What Worked™ · Development Pipeline
11 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
📸
Refreshed store screenshots — 11 of 12 updated
2026-08
🔧
Shipped update — v3.0.1 → v3.1
→ 30 days after: reviews +121 high confidence
2026-05
🔄
Monetization changed: freemium → free
→ 30 days after: reviews +93 high confidence
2026-03
📈
Crossed 1,000 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$10.0K/mo · rating +0.06★ · reviews +12,447 medium · co-occurring
2026-02
📈
Crossed 500 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$10.0K/mo · rating +0.06★ · reviews +12,448 medium · co-occurring
2023-08
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$70/mo · reviews +87 high confidence
2023-08
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$87/mo · reviews +108 medium · co-occurring
2023-07
🚀
First tracked snapshot — initial data captured
→ 30 days after: revenue +$87/mo · reviews +108 medium · co-occurring
2023-07
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$87/mo · reviews +108 medium · co-occurring
2023-07
📈
Crossed 10 ratings — social-proof flywheel kicking in
2023-07
🚀
First tracked snapshot — initial data captured
📸
Store Page History
11 SCREENSHOT CHANGESEvery time a developer swaps a store screenshot we archive both versions. Compare side-by-side to see what messaging / visuals changed.
iPad screenshots
Slot 1
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 3
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 4
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 5
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 6
2 ver.
2 ver.
2026-08-07
2026-09-10
iPhone screenshots
Slot 1
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 3
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 4
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 5
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 6
2 ver.
2 ver.
2026-08-07
2026-09-10
Slot 7
2 ver.
2 ver.
2026-08-07
2026-09-10
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.83821★ | 11,700 | 4.83821★ this version |
| 🇧🇷 BR | 4.80131★ | 5,159 | 4.80131★ this version |
| 🇨🇦 CA | 4.76997★ | 626 | 4.76997★ this version |
| 🇩🇪 DE | 4.76726★ | 1,521 | 4.76726★ this version |
| 🇫🇷 FR | 4.76434★ | 2,075 | 4.76434★ this version |
| 🇬🇧 GB | 4.78604★ | 13,105 | 4.78604★ this version |
| 🇮🇳 IN | 4.61871★ | 3,858 | 4.61871★ this version |
| 🇯🇵 JP | 4.7135★ | 4,883 | 4.7135★ this version |
| 🇺🇸 US | 4.81084★ | 24,773 | 4.81084★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Safe Lock: рrivate рhoto vault: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why high confidence: 24,365 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Safe Lock make per month?▴
Based on our ML-calibrated revenue forecast, Safe Lock earns approximately $5.0K/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 Safe Lock profitable?▴
With estimated build cost $145K and monthly revenue $5.0K, Safe Lock looks break-even-grade — payback period sits around 2.4 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Safe Lock have?▴
Estimated audience: ~2.4M lifetime downloads, ~230K monthly active users, and ~69K 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 Safe Lock?▴
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 Safe Lock built with?▴
Our heuristic places Safe Lock on the Native iOS (Swift / UIKit) stack (Medium confidence, 70%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Safe Lock still actively maintained?▴
Maintenance status: Active (15% abandonment risk). Last shipped version was 1 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Safe Lock sell for?▴
Estimated acquisition value: $100K (marketplace range $75K – $125K). Calculated as 21× 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 Safe Lock last updated?▴
Safe Lock last shipped a new version on 2026-08-17 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Safe Lock?▴
Safe Lock is published by Katerina Akhlebinina 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 Safe Lock's BU Score?▴
Safe Lock has a BU Score of 80/100 (Excellent). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.