Notesnook Secure Private Notes
65
Quality Score
Solid
✍️ Bumetric analysis
“
Notesnook Secure Private Notes is an Android app from Streetwriters (Private) Limited in the Productivity category, currently rated 4.6★ across 7,301 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 65: Solid (established niche player). For a Productivity app, that means established niche player. 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
2 snapshots on record
Rating
4.6
Reviews
7,301 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
2
since May 2026
ONE-TIME · BUILD
💰 Estimated build cost
$140K
↳ What it cost to build · not monthly revenue
Likely range $105K – $190K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~2.3y 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 |
| 💎 In-app purchase plumbing | +$9K |
| ⚙ Productivity complexity ×1.10 | +$5K |
| 🌐 Cross-platform reach (iOS + Android) | +$35K |
| ⚙ 6.5y maintenance × ~1-person team | +$39K |
Total estimate
$140K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$200K
↳ What it would sell for · not monthly revenue
Marketplace range $150K – $250K · 39× MRR multiple
💸
~1.4× build cost (break-even+)
Synthetic estimate. Multiple band derived from iap / freemium model + 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
| 💎 IAP / freemium model base | 28× MRR |
| 📅 6.5y proven track record | +20% |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 Productivity category multiple | +8% |
Final multiple
39× MRR
👥 Estimated audience size
380K
Lifetime downloads (US-equivalent)
Monthly active
82K
Daily active
37K
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
| 📲 Productivity engagement | ~75 installs / rating |
| 📅 6.5y of rating accumulation | -30% |
| 🔁 Productivity D30 retention | 30% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
45% sticky
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
High confidence · 80%
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
| 🏷 Category context | Productivity |
| 📦 Compact Android bundle | → Native Kotlin |
💀 Maintenance status
Active
5%
Last shipped 2026-10-20 · 25 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
| 📅 25 days since last update | Active development |
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 · 53/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
3.8
Product Quality
8.3
Revenue Strength
3.7
Monetization Maturity
4.0
Defensibility
7.6
Market Position
0.0
Operational Safety
10.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.61★ across 7,301 reviews — strong (top 10%).
- 📍 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.
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 8 of 8 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Excellent rating (4.6★)METRIC | +$2,200 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| Low install base (7,301 ratings)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| slowREVIEW | −$1,200 | |
| Established app (6y old)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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Notesnook Secure Private Notes
- Developer
- Streetwriters (Private) Limited
- Bundle ID
- com.streetwriters.notesnook
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- notesnook.com
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
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
- Not found
- All-time revenue
- Not found
- Pricing
- $0.99 - $399.99 per item
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.
🚀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
Notesnook is a private note taking app that encrypts every note on your device before it ever reaches the cloud. No ads, no trackers, and nobody reading your notes — including us.
⭐ UNLIMITED NOTES, FREE, ON EVERY DEVICE ⭐
Most note apps cap the free plan until it stops being useful. Notesnook does not limit how many notes you write or how many devices you sync. Take notes on your phone, tablet, laptop and browser, and pick up where you left off.
✔️ Unlimited notes and unlimited devices
✔️ 50 notebooks and 50 tags on the free plan
✔️ No ads, no trackers, no countdown… View full description on the official store →
⭐ UNLIMITED NOTES, FREE, ON EVERY DEVICE ⭐
Most note apps cap the free plan until it stops being useful. Notesnook does not limit how many notes you write or how many devices you sync. Take notes on your phone, tablet, laptop and browser, and pick up where you left off.
✔️ Unlimited notes and unlimited devices
✔️ 50 notebooks and 50 tags on the free plan
✔️ No ads, no trackers, no countdown… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 v3.4.15🔄 updated 3w ago📂 Productivity💰 Free💎 IAP $0.99 - $399.99 per item🚀 Launched 2020 (6y old)
📅
What Worked™ · Development Pipeline
3 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 →
2026-10
📸
Refreshed store screenshots — 8 of 8 updated
2026-10
🔧
Shipped update — v3.3.24 → v3.4.15
→ 30 days after: rating +0.29★ · reviews +998 medium · co-occurring
2026-05
🚀
First tracked snapshot — initial data captured
📸
Store Page History
8 SCREENSHOT CHANGESEvery time a developer swaps a store screenshot we archive both versions. Compare side-by-side to see what messaging / visuals changed.
iPhone screenshots
Slot 1
2 ver.
2 ver.
2026-05-28
2026-10-30
Slot 2
2 ver.
2 ver.
2026-05-28
2026-10-30
Slot 3
2 ver.
2 ver.
2026-05-28
2026-10-30
Slot 4
2 ver.
2 ver.
2026-05-28
2026-10-30
Slot 5
2 ver.
2 ver.
2026-05-28
2026-10-30
Slot 6
2 ver.
2 ver.
2026-05-28
2026-10-30
🧪
Tech & Domain Intel — notesnook.com
- Mail provider
- Zoho Mail
- Tech stack
- Microsoft 365 · Zoho · Google Workspace
Derived from public RDAP + DNS TXT records (no scraping, no login).
🔔
Track this app’s revenue
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Notesnook Secure Private Notes: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Streetwriters (Private) Limited
View all →📦 Portfolio summaryINDIE studio
4apps·$5K/mocombined
⚠ Concentrated — top app contributes 91% of combined revenue (single-app dependency)
About this analysis
Why medium confidence: 7,301 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does Notesnook Secure Private Notes make per month?▴
Based on our ML-calibrated revenue forecast, Notesnook Secure Private Notes 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 Notesnook Secure Private Notes profitable?▴
With estimated build cost $140K and monthly revenue $5.0K, Notesnook Secure Private Notes looks break-even-grade — payback period sits around 2.3 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Notesnook Secure Private Notes have?▴
Estimated audience: ~380K lifetime downloads, ~82K monthly active users, and ~37K 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 Notesnook Secure Private Notes?▴
Browse the full Productivity 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 Notesnook Secure Private Notes built with?▴
Our heuristic places Notesnook Secure Private Notes on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Notesnook Secure Private Notes still actively maintained?▴
Maintenance status: Active (5% abandonment risk). Last shipped version was 25 days ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Notesnook Secure Private Notes sell for?▴
Estimated acquisition value: $200K (marketplace range $150K – $250K). Calculated as 39× 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 Notesnook Secure Private Notes last updated?▴
Notesnook Secure Private Notes last shipped a new version on 2026-10-20 — less than a month ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Notesnook Secure Private Notes?▴
Notesnook Secure Private Notes is published by Streetwriters (Private) Limited on the Google Play 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 Notesnook Secure Private Notes's BU Score?▴
Notesnook Secure Private Notes has a BU Score of 65/100 (Solid). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.