testo Smart
37
Quality Score
Emerging
✍️ Bumetric analysis
“
testo Smart is an iOS app from Testo SE & Co. KGaA in the Productivity category, currently rated 2.6★ across 158 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 37: Emerging (early traction worth watching). For a Productivity 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.
💰 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 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
45 snapshots on record
Rating
2.6
Reviews
158 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
45
since May 2021
🤖Also on Android
$28/mo · 63 ratings · 3.5★
View →
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 ~2.2y 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 (175 MB) | +$40K |
| ⚙ Productivity complexity ×1.10 | +$9K |
| ⚙ 5.7y maintenance × ~1-person team | +$34K |
Total estimate
$135K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$75K
↳ What it would sell for · not monthly revenue
Marketplace range $50K – $100K · 15× MRR multiple
💸
~0.6× 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 |
| 📅 5.7y proven track record | +20% |
| ⭐ ★ rating < 3.5 (weak) | -18% |
| 🏷 Productivity category multiple | +8% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
15× MRR
👥 Estimated audience size
8.4K
Lifetime downloads (US-equivalent)
Monthly active
1.9K
Daily active
850
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 |
| 📅 5.7y of rating accumulation | -28% |
| 🔁 Productivity D30 retention | 30% |
| 📍 DAU / MAU stickiness | 0.45 |
DAU / MAU
45% sticky
🛠 Estimated tech stack
🍎
Native iOS (SwiftUI)
Medium confidence · 60%
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 | 175 MB |
| 🏷 Category context | Productivity |
| 📦 Mid-large iOS bundle | → Likely native SwiftUI (post-2020 era) |
💀 Maintenance status
Slowing
25%
Last shipped 2026-07-09 · 77 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
| 📅 77 days since last update | Healthy release cadence |
| 👥 Small user base (158 ratings) + 5.7y old | +10% (solo-project pattern) |
Verdict
Slowing
🔬
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)
Direction
Headwinds: rating drift may slow acquisition
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
Stalled · 35/100MID TIERFREE (NO MONETIZATION)no growth momentumRevenue Strength
3.7
Product Quality
2.2
Market Position
2.0
Growth Velocity
5.0
Defensibility
4.9
Operational Safety
5.4
Founder Strength
4.2
Monetization Maturity
0.5
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 2.65★ across 158 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Elevated — rating drift -0.45 ★ (recent 50 vs lifetime).
🎯 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 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| bugsREVIEW | −$1,800 | |
| Below-average rating (2.6★)METRIC | −$1,500 | |
| slowREVIEW | −$1,200 | |
| Established app (5y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (158 ratings)METRIC | +$400 |
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 · v31.31.31
- testo Smart Connect Cloud – Connect your testo Smart App to the all-new testo Smart Connect Cloud for intuitive, central data management.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- testo Smart
- Developer
- Testo SE & Co. KGaA
- Bundle ID
- de.testo.smartprobesappgen2
- App Store URL
- Open in App Store
- Category
- Productivity
- Content rating
- 4+
- Languages
- Not found
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 Productivity
- 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 growth167 ratings+16600% lifetimeShow 3-year history estimate ▾
Tracked (45 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
- All in one: The testo Smart App supports you with measurements on refrigeration, air conditioning, and heating systems, as well as in ensuring the safety and quality of food and frying oil, and in monitoring indoor climate and storage conditions.
- Fast: Graphically descriptive display of measured values, e.g. as a table, for quick interpretation of results.
- Efficient: Create digital measurement reports including. photos as PDF/ CSV files on site and send them via e-mail.
The testo Smart App is compatible with the following Bluetooth®-enabled measuring instruments from Testo:… View full description on the official store →
- Fast: Graphically descriptive display of measured values, e.g. as a table, for quick interpretation of results.
- Efficient: Create digital measurement reports including. photos as PDF/ CSV files on site and send them via e-mail.
The testo Smart App is compatible with the following Bluetooth®-enabled measuring instruments from Testo:… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 175 MB🔞 4+📱 iOS 18.0+🔖 v31.31.31🔄 updated 2mo ago📂 Productivity💰 Free🚀 Launched 2021 (5y old)
📅
What Worked™ · Development Pipeline
12 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 →
2026-07
🔧
Shipped update — v31.31.21 → v31.31.31
2026-05
🔄
Monetization changed: freemium → free
2026-05
📈
Crossed 100 ratings — social-proof flywheel kicking in
2026-03
⭐
Rating ↑ 2.04 → 2.90 (improved 0.86★)
→ 30 days after: rating +0.84★ high confidence
2025-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2022-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating +0.11★ medium · co-occurring
2022-03
📈
Crossed 10 ratings — social-proof flywheel kicking in
→ 30 days after: rating +0.08★ low · multiple changes
2021-10
⭐
Rating ↓ 3.17 → 2.86 (dropped 0.31★)
2021-10
⭐
Rating ↓ 3.60 → 3.17 (dropped 0.43★)
→ 30 days after: rating −0.74★ medium · co-occurring
2021-09
⭐
Rating ↓ 4.00 → 3.60 (dropped 0.40★)
→ 30 days after: rating −0.74★ medium · co-occurring
2021-07
⭐
Rating ↓ 5.00 → 4.00 (dropped 1.00★)
2021-05
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 159 reviews across 7 markets● 35% positive · ● 16% neutral · ● 48% negative · Rating drift: -0.45★ (declining — recent 50: 2.2★ vs lifetime: 2.65★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇬🇧 GB
+0.17
🇺🇸 US
+0.07
🇯🇵 JP
+0.00
🇧🇷 BR
-0.10
🇨🇦 CA
-0.12
🇦🇺 AU
-0.14
🇩🇪 DE
-0.45
Top praise themes
probes ×6 mit ×6 tools ×5 probe ×5 please ×4 measurements ×4 test ×4 die ×4
Top complaint themes
won connect ×9 nicht möglich ×7 nicht mehr ×7 mit dem ×7 new update ×5 doesn work ×5 connect iphone ×5 sehr schlecht ×5
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 2.70659★ | 167 | 2.70659★ this version |
| 🇬🇧 GB | 1.77083★ | 48 | 1.77083★ this version |
| 🇩🇪 DE | 3★ | 72 | 3★ this version |
| 🇫🇷 FR | 3.76923★ | 13 | 3.76923★ this version |
| 🇯🇵 JP | 4.14286★ | 14 | 4.14286★ this version |
| 🇨🇦 CA | 1.5★ | 30 | 1.5★ this version |
| 🇦🇺 AU | 2.30769★ | 13 | 2.30769★ this version |
| 🇧🇷 BR | 3.85714★ | 14 | 3.85714★ this version |
| 🇮🇳 IN | 0★ | 0 | — |
🔔
Track this app’s revenue
FREEGet an email when revenue moves by your threshold. No spam, unsubscribe in one click.
📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for testo Smart: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Testo SE & Co. KGaA
View all →📦 Portfolio summaryINDIE studio
5apps·$6K/mocombined
Lead-app heavy — top app contributes 78%
About this analysis
Why medium confidence: 158 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does testo Smart make per month?▴
Based on our ML-calibrated revenue forecast, testo Smart 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 testo Smart profitable?▴
With estimated build cost $135K and monthly revenue $5.0K, testo Smart looks break-even-grade — payback period sits around 2.2 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does testo Smart have?▴
Estimated audience: ~8K lifetime downloads, ~1K monthly active users, and ~850 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 testo Smart?▴
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 testo Smart built with?▴
Our heuristic places testo Smart on the Native iOS (SwiftUI) stack (Medium confidence, 60%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: React Native, Flutter.
Is testo Smart still actively maintained?▴
Maintenance status: Slowing (25% abandonment risk). Last shipped version was 2 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would testo Smart sell for?▴
Estimated acquisition value: $75K (marketplace range $50K – $100K). 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 testo Smart last updated?▴
testo Smart last shipped a new version on 2026-07-09 — 2 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes testo Smart?▴
testo Smart is published by Testo SE & Co. KGaA 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 testo Smart's BU Score?▴
testo Smart has a BU Score of 37/100 (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.