68
Quality Score
Solid
phyphox
Medium confidence
✍️ bumetric analysis
“
phyphox is an iOS app from RWTH Aachen University in the News category, currently rated 4.6★ across 256 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 68: Solid (established niche player). For a News 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 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
🤖Also on Android
$810/mo · 8K ratings · 4.8★
View →
ONE-TIME · BUILD💰 Estimated build cost
$120K
↳ What it cost to build · not monthly revenue
Likely range $90K – $160K
$25K · MVP floor$100K · indie scale$500K+ · studio build
📈Pays back in ~12 months 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 |
| ⚙News complexity ×1.20 | +$10K |
| ⚙9.7y maintenance × ~1-person team | +$58K |
Total estimate$120K
ONE-TIME · EXIT VALUE💵 Estimated acquisition value
$175K
↳ What it would sell for · not monthly revenue
Marketplace range $125K – $225K · 17× MRR multiple
💸~1.5× build cost (break-even+)
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 |
| 📅9.7y proven track record | +20% |
| ⭐★ rating ≥ 4.4 (solid) | +8% |
| 🏷News category multiple | -5% |
| ⭐Small user base (<1K ratings) | -8% |
Final multiple17× MRR
👥 Estimated audience size
21K
Lifetime downloads (US-equivalent)
Monthly active
1.7K
Daily active
760
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
| 📲News engagement | ~120 installs / rating |
| 📅9.7y of rating accumulation | -30% |
| 🔁News D30 retention | 15% |
| 📍DAU / MAU stickiness | 0.45 |
DAU / MAU45% sticky
🛠 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 | 19 MB |
| 🏷Category context | News |
| 📦Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
At risk
60%
Last shipped 2025-07-08 · 321 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
| 📅10 months since last update | Concerning gap |
| 👥Small user base (256 ratings) + 9.7y old | +10% (solo-project pattern) |
VerdictAt risk
🔬
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 · 46/100MID TIERFREE (NO MONETIZATION)underperforming peersRevenue Strength
3.7
Product Quality
5.0
Market Position
2.0
Growth Velocity
5.0
Defensibility
7.4
Operational Safety
6.7
Founder Strength
6.6
Monetization Maturity
0.5
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.62★ across 256 reviews — below category median.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: last update 321d ago — slow cadence.
- ⚠️ Risk: Moderate — rating drift -0.48 ★ (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. Portfolio play ($11K/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 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 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (9y old)METRIC | +$1,500 | |
| Multilingual (19 languages)METRIC | +$1,500 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (256 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.
App Specs
🔐 Own this app? Claim & verify MRR →💾 19 MB🔞 4+📱 iOS 12.0+🔖 v1.2.0🔄 updated 10mo ago🌐 CS, NL, EN, FR, KA +14📂 News💰 Paid🚀 Launched 2016 (9y old)
📝 About this app
Did you know that you are carrying a 3D magnetometer? That you can use your phone as a pendulum to measure earth's local gravitational acceleration? That you can turn your phone into a sonar?
phyphox gives you access to the sensors of your phone either directly or through ready-to-play experiments which analyze your data and let you export raw data along with the results for further analysis. You can even define your own experiments on phyphox.org and share them with colleagues, students and friends.
Selected Features:
- A selection of pre-defined experiments. Just press play to start.… View full description on the official store →
phyphox gives you access to the sensors of your phone either directly or through ready-to-play experiments which analyze your data and let you export raw data along with the results for further analysis. You can even define your own experiments on phyphox.org and share them with colleagues, students and friends.
Selected Features:
- A selection of pre-defined experiments. Just press play to start.… View full description on the official store →
🆕 What's New · v1.2.0
New camera-based sensors to measure luma, luminance, hue, saturation and value.
New camera-related experiments: Brightness stopwatch, color stopwatch, brightness spectrum.
New UI elements: Slider, Dropdown and Toggle… Full release notes →
New camera-related experiments: Brightness stopwatch, color stopwatch, brightness spectrum.
New UI elements: Slider, Dropdown and Toggle… Full release notes →
📅
What Worked™ · Development Pipeline
5 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 →
2026-05
🔄
Monetization changed: freemium → free
2026-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2021-11
⭐
Rating ↓ 4.89 → 4.50 (dropped 0.39★)
2021-11
📈
Crossed 10 ratings — social-proof flywheel kicking in
2019-11
🚀
First tracked snapshot — initial data captured
🗣
Voice of Customer
Based on 173 reviews across 9 markets● 45% positive · ● 33% neutral · ● 22% negative · Rating drift: -0.48★ (declining — recent 50: 4.14★ vs lifetime: 4.62★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇮🇳 IN
+0.83
🇺🇸 US
+0.61
🇬🇧 GB
+0.48
🇨🇦 CA
+0.45
🇦🇺 AU
+0.29
🇯🇵 JP
+0.22
🇫🇷 FR
-0.02
🇩🇪 DE
-0.14
🇧🇷 BR
-0.14
Top praise themes
cette application ×13 vielen dank ×8 avoir fait ×7 mit der ×6 chris boden ×5 fait découvrir ×5 sensor data ×4 light sensor ×4
Top complaint themes
cette application ×9 application pour ×3 est ×9 merci ×7 les ×7 une ×7 avis ×6 mon ×6
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇺🇸 US | 4.62547★ | 259 | 4.62547★ this version |
| 🇬🇧 GB | 4.21622★ | 37 | 4.21622★ this version |
| 🇩🇪 DE | 4.5787★ | 432 | 4.5787★ this version |
| 🇫🇷 FR | 3.4024★ | 333 | 3.4024★ this version |
| 🇯🇵 JP | 4.34694★ | 49 | 4.34694★ this version |
| 🇨🇦 CA | 4.04348★ | 46 | 4.04348★ this version |
| 🇦🇺 AU | 4.29412★ | 17 | 4.29412★ this version |
| 🇧🇷 BR | 3.72727★ | 11 | 3.72727★ this version |
| 🇮🇳 IN | 4.58333★ | 12 | 4.58333★ this version |
🔔
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Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- phyphox
- Developer
- RWTH Aachen University
- Bundle ID
- de.rwth-aachen.physics.phyphox
- App Store URL
- Open in App Store
- Category
- News
- Content rating
- 4+
- Languages
- CS, NL, EN, FR, KA, DE, EL, HI, IT, JA, PL, PT, RU, SR, ZH, ES, ZH, TR, VI
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
- $10.2K/mo
- Top-grossing rank
- Outside top 100 in US News
- 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 growth256 ratings+25500% lifetimeShow 3-year history estimate ▾
Tracked (45 weeks) Pre-tracking estimate (34 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.
More by RWTH Aachen University
View all →📦 Portfolio summaryINDIE studio
8apps·$11K/mocombined
⚠ Concentrated — top app contributes 86% of combined revenue (single-app dependency)
Full revenue analysis
Read the article-style breakdown for phyphox: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
About this analysis
Why medium confidence: 256 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does phyphox make per month?▴
Based on our ML-calibrated revenue forecast, phyphox earns approximately $10K/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 phyphox profitable?▴
With estimated build cost $120K and monthly revenue $10K, phyphox looks profitable — pays back its estimated build cost in roughly 12 months at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does phyphox have?▴
Estimated audience: ~21K lifetime downloads, ~1K monthly active users, and ~760 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 phyphox?▴
Browse the full News 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 phyphox built with?▴
Our heuristic places phyphox 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 phyphox still actively maintained?▴
Maintenance status: At risk (60% abandonment risk). Last shipped version was 10 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would phyphox sell for?▴
Estimated acquisition value: $175K (marketplace range $125K – $225K). Calculated as 17× 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 phyphox last updated?▴
phyphox last shipped a new version on 2025-07-08 — 10 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes phyphox?▴
phyphox is published by RWTH Aachen University 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 phyphox's BU Score?▴
phyphox has a BU Score of 68/100 (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.