57
Quality Score
Solid
SensorLog
Low confidence
✍️ bumetric analysis
“
SensorLog is an iOS app from Bernd Thomas in the Utilities category, currently rated 4.4★ across 40 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 57: Solid (established niche player). For a Utilities 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
$2.6K
per month
→
12-mo forecast
$2.3K – $8.2K
per month
→
24-mo forecast
$2.1K – $18.9K
per month
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
$135K
↳ What it cost to build · not monthly revenue
Likely range $100K – $180K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Pays back in ~1.8y 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 |
| ⚙Utilities complexity ×0.85 | $-7575 |
| ⚙15.7y maintenance × ~1-person team | +$94K |
Total estimate$135K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$100K
↳ What it would sell for · not monthly revenue
Marketplace range $75K – $125K · 15× 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 |
| 📅15.7y proven track record | +20% |
| 🏷Utilities category multiple | -10% |
| ⭐Small user base (<1K ratings) | -8% |
Final multiple15× MRR
🛠 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 | 4 MB |
| 🏷Category context | Utilities |
| 📦Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Likely abandoned
87%
Last shipped 2024-11-05 · 566 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
| 📅1y 6mo since last update | Likely deprioritized |
| 👥Small user base (40 ratings) + 15.7y old | +10% (solo-project pattern) |
| •16y old + 1y+ no update | +5% (API deprecation drift) |
VerdictLikely abandoned
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$2.6K/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
$2.2K – $5.2K
12 months
$2.3K – $8.2K
24 months
$2.1K – $18.9K
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 · 30/100INDIE TIERFREE (NO MONETIZATION)limited signalRevenue Strength
3.4
Product Quality
2.0
Market Position
2.0
Growth Velocity
5.0
Defensibility
4.5
Operational Safety
1.5
Founder Strength
4.8
Monetization Maturity
0.5
- 💰 Revenue: Modest — $1K - $6K/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.38★ across 40 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 566d ago — possibly dormant.
- ⚠️ Risk: High — bug mentions above category norm, rating drift -0.42 ★ (recent 50 vs lifetime), dormant (566d 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 = $31K-$57K. Portfolio play ($6K/mo combined) commands premium. 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 7 of 7 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 | |
| bugsREVIEW | −$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (15y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Good rating (4.4★)METRIC | +$800 | |
| Pre-traction phase (40 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 →💾 4 MB🔞 4+📱 iOS 18.0+🔖 v6.1🔄 updated 1y ago🌐 EN, DE📂 Utilities💰 Paid🚀 Launched 2010 (15y old)
📝 About this app
With SensorLog you can read sensor data from the iPhone, iPad and Apple Watch.
The sensor data can be saved as a file in CSV or JSON format, streamed via TCP/UDP or sent as an HTTP request.
The most important functions for iPhone and iPad:
- Sensor data can be recorded at up to 100Hz (depending on the iOS device version and sensor type).
- Sensor data can be streamed in server or client mode using TCP or UDP. Depending on the network speed and the server or client configuration used, this is possible with up to 100Hz.… View full description on the official store →
The sensor data can be saved as a file in CSV or JSON format, streamed via TCP/UDP or sent as an HTTP request.
The most important functions for iPhone and iPad:
- Sensor data can be recorded at up to 100Hz (depending on the iOS device version and sensor type).
- Sensor data can be streamed in server or client mode using TCP or UDP. Depending on the network speed and the server or client configuration used, this is possible with up to 100Hz.… View full description on the official store →
🆕 What's New · v6.1
bugfix resolving app crash
📅
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 →
2013-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
2011-11
⭐
Rating ↓ 5.00 → 4.67 (dropped 0.33★)
2010-10
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 100 reviews across 7 markets● 57% positive · ● 21% neutral · ● 22% negative · Rating drift: -0.42★ (declining — recent 50: 3.96★ vs lifetime: 4.38★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇨🇦 CA
+0.60
🇬🇧 GB
+0.51
🇺🇸 US
+0.51
🇫🇷 FR
+0.41
🇦🇺 AU
+0.40
🇯🇵 JP
+0.00
🇩🇪 DE
-0.24
Top praise themes
sensor data ×9 apple watch ×5 csv file ×4 sehr gut ×4 raw sensor ×3 data apple ×3 sehr sehr ×3 die ×17
Top complaint themes
sampling rate ×3 file tags ×3 doesn't work ×3 black screen ×3 data ×11 die ×9 crashes ×7 iphone ×7
Risk signals
Bug mentions: 10%
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.375★ | 40 | 4.375★ this version |
| 🇬🇧 GB | 4.4★ | 5 | 4.4★ this version |
| 🇩🇪 DE | 4.375★ | 24 | 4.375★ this version |
| 🇫🇷 FR | 4.5★ | 2 | 4.5★ this version |
| 🇯🇵 JP | 2.33333★ | 3 | 2.33333★ this version |
| 🇨🇦 CA | 3.75★ | 8 | 3.75★ this version |
| 🇦🇺 AU | 4★ | 3 | 4★ this version |
| 🇧🇷 BR | 4.75★ | 4 | 4.75★ this version |
| 🇮🇳 IN | 5★ | 2 | 5★ this version |
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- SensorLog
- Developer
- Bernd Thomas
- Bundle ID
- net.berndthomas.SensorLog
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- EN, DE
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
- $6.5K/mo
- Top-grossing rank
- Outside top 100 in US Utilities
- 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 Reviews48 latest · avg 4.0★ · 62.5% 5★ · 14.6% 1★
5★30 (62%)
4★5 (10%)
3★3 (6%)
2★3 (6%)
1★7 (15%)
+0 ratings/week
Praise: great ×14 awesome ×6 amazing ×4 perfect ×4 love ×4Complaints: broken ×2 bug ×1 crash ×1
Top positive
★★★★★ WELL DONE!
this powerful app is easy to use and does what is advertised.…
★★★★★ Amazing free app, more features than even paid apps.
I was looking for an app that could steam device accelerometer data across the network to my PC. This app offers that and more, all for free.…
Top negative
★☆☆☆☆ Not appeared in my watch
Any idea how to get it installed in my watch? It appeared once but disappeared and never come back…
★☆☆☆☆ Output File Time Tags worthless
App measurement data collection is easy to initiate but limitations in the output measurement file time tags make the data useless for performing engineering analysis. I am using it to log time tagged earth magnetic field measurements. I tr…
📈Ratings growth40 ratings+1900% lifetimeShow 3-year history estimate ▾
Tracked (48 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.
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.
Similar apps in Utilities
About this analysis
Why low confidence: only 40 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does SensorLog make per month?▴
Based on our ML-calibrated revenue forecast, SensorLog earns approximately $6.5K/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 SensorLog profitable?▴
With estimated build cost $135K and monthly revenue $6.5K, SensorLog looks break-even-grade — payback period sits around 1.8 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
What apps are like SensorLog?▴
Browse the full Utilities 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 SensorLog built with?▴
Our heuristic places SensorLog 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 SensorLog still actively maintained?▴
Maintenance status: Likely abandoned (87% abandonment risk). Last shipped version was 1+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would SensorLog sell for?▴
Estimated acquisition value: $100K (marketplace range $75K – $125K). Calculated as 15× 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 SensorLog last updated?▴
SensorLog last shipped a new version on 2024-11-05 — more than 1 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes SensorLog?▴
SensorLog is published by Bernd Thomas 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 SensorLog's BU Score?▴
SensorLog has a BU Score of 57/100 (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.