Plank Stopwatch Timer
50
Quality Score
Solid
✍️ Bumetric analysis
“
Plank Stopwatch Timer is an iOS app from RhythmicWorks in the Health & Fitness category, currently rated 4.5★ across 11 ratings. Initial signal reads as no scraped reviews yet: judgment based on metadata only.
Quality Score is 50: Solid (established niche player). For a Health & Fitness 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
5 snapshots on record
Rating
4.5
Reviews
11 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
5
since Mar 2026
🤖Also on Android
$80/mo · no ratings
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 ~2.0y 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 |
| ⚙ Health & Fitness complexity ×1.40 | +$20K |
| ⚙ 8.2y maintenance × ~1-person team | +$49K |
Total estimate
$120K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$100K
↳ What it would sell for · not monthly revenue
Marketplace range $75K – $125K · 20× MRR multiple
💸
~0.8× 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 |
| 📅 8.2y proven track record | +20% |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 Health & Fitness category multiple | +10% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
20× MRR
🛠 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 | 41 MB |
| 🏷 Category context | Health & Fitness |
| 📦 Small-mid iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Likely abandoned
95%
Last shipped 2023-09-27 · 1093 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
| 📅 2y+ since last update | Likely abandoned |
| 👥 Small user base (11 ratings) + 8.2y old | +10% (solo-project pattern) |
Verdict
Likely abandoned
🔬
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
Below median · 44/100MID TIERunderperforming peersGrowth Velocity
5.0
Founder Strength
5.6
Product Quality
3.6
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
7.0
Market Position
2.0
Operational Safety
7.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.45★ across 11 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 1090d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (1090d since update).
🎯 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 4 of 4 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 | |
| Mature app (8y old)METRIC | +$1,500 | |
| Good rating (4.5★)METRIC | +$800 | |
| Pre-traction phase (11 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.
🆕 What's New · v1.1
• Added Spanish localisation
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Plank Stopwatch Timer
- Developer
- RhythmicWorks
- Bundle ID
- com.rhythmicworks.plank-stopwatch
- App Store URL
- Open in App Store
- Category
- Health & Fitness
- Content rating
- 4+
- Languages
- EN, ES
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 Health & Fitness
- 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.
🌍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.
💰Pricing History$0.00 → $2.99 (+0%)
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
Simple stopwatch and timer designed for Plank exercises. This app will surely replace your phone's stopwatch/timer for performing plank exercises.
Stopwatch: The app speaks out the elapsed time at the specified interval. Example: "5 seconds", "10 seconds"....1 minute 30 seconds" and so on until stopped.
Timer: The app speaks out the remaining time at specified intervals until the timer is finished.
No need to look at the screen for the time. Let the app tell you the time so that you can concentrate on your core muscles and let go of the "time anxiety".
Stopwatch: The app speaks out the elapsed time at the specified interval. Example: "5 seconds", "10 seconds"....1 minute 30 seconds" and so on until stopped.
Timer: The app speaks out the remaining time at specified intervals until the timer is finished.
No need to look at the screen for the time. Let the app tell you the time so that you can concentrate on your core muscles and let go of the "time anxiety".
App Specs
🔐 Own this app? Claim & verify MRR →💾 41 MB🔞 4+📱 iOS 14.7+🔖 v1.1🔄 updated 2y ago🌐 EN, ES📂 Health & Fitness💰 Paid🚀 Launched 2018 (8y 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 →
2026-05
💲
Went paid — introduced $2.99 price point
2026-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
2026-03
🚀
First tracked snapshot — initial data captured
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 0★ | 0 | — |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇨🇦 CA | 0★ | 0 | — |
| 🇩🇪 DE | 5★ | 1 | 5★ this version |
| 🇫🇷 FR | 4★ | 1 | 4★ this version |
| 🇬🇧 GB | 5★ | 1 | 5★ this version |
| 🇮🇳 IN | 0★ | 0 | — |
| 🇯🇵 JP | 4.4★ | 5 | 4.4★ this version |
| 🇺🇸 US | 4.45455★ | 11 | 4.45455★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
More by RhythmicWorks
View all →📦 Portfolio summaryINDIE studio
7apps·$26K/mocombined
✓ Diversified — top app contributes 19%; risk spread across portfolio
About this analysis
Why low confidence: only 11 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
Plank Stopwatch Timer is a early-stage iOS app in the health & fitness space with weak public traction — only 11 ratings, no founder-verified MRR, and not ranked in any monitored grossing chart. The app appears to be monetised, but public signals are too sparse for a precise revenue estimate.
Bottom line: treat all revenue, audience and acquisition-value numbers on this page as directional only — not founder-verified facts.
❓ Frequently Asked Questions
7 answers · auto-generated from this app's public dataHow much does Plank Stopwatch Timer make per month?▴
Our model estimates Plank Stopwatch Timer earns roughly $5.0K/mo, but with only 11 ratings the confidence interval is wide. No founder-verified MRR is available for this app, so this is a model output calibrated against comparable apps in the same category. See methodology for the formula.
What apps are like Plank Stopwatch Timer?▴
Browse the full Health & Fitness 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 Plank Stopwatch Timer built with?▴
Our heuristic places Plank Stopwatch Timer 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 Plank Stopwatch Timer still actively maintained?▴
Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 2+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
When was Plank Stopwatch Timer last updated?▴
Plank Stopwatch Timer last shipped a new version on 2023-09-27 — more than 2 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Plank Stopwatch Timer?▴
Plank Stopwatch Timer is published by RhythmicWorks 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 Plank Stopwatch Timer's BU Score?▴
Plank Stopwatch Timer has a BU Score of 50/100 (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.