My Pain Diary: Chronic Pain & Symptom Tracker
60
Quality Score
Solid
✍️ Bumetric analysis
“
My Pain Diary: Chronic Pain & Symptom Tracker is an iOS app from Damon Lynn in the Education category, currently rated 4.0★ across 119 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.
Quality Score is 60: Solid (established niche player). For a Education 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
$3.6K
per month
→
12-mo forecast
$3.1K – $11.3K
per month
→
24-mo forecast
$2.9K – $26.1K
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
85 snapshots on record
Rating
4.0
Reviews
119 reviews
Forecast Revenue / mo
$3.6K
Snapshots tracked
85
since Jun 2012
ONE-TIME · BUILD
💰 Estimated build cost
$160K
↳ What it cost to build · not monthly revenue
Likely range $120K – $215K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~3.8y 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 |
| ⚙ Education complexity ×1.20 | +$10K |
| ⚙ 16.9y maintenance × ~1-person team | +$101K |
Total estimate
$160K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$50K
↳ What it would sell for · not monthly revenue
Marketplace range $45K – $75K · 16× MRR multiple
💸
~0.3× 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 |
| 📅 16.9y proven track record | +20% |
| ⭐ ★ rating 3.5-4.0 (mixed) | -8% |
| 🏷 Education category multiple | +6% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
16× MRR
👥 Estimated audience size
7.0K
Lifetime downloads (US-equivalent)
Monthly active
250
Daily active
70
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
| 📲 Education engagement | ~85 installs / rating |
| 📅 16.9y of rating accumulation | -30% |
| 🔁 Education D30 retention | 18% |
| 📍 DAU / MAU stickiness | 0.30 |
DAU / MAU
28% 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 | 18 MB |
| 🏷 Category context | Education |
| 📦 Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Likely abandoned
95%
Last shipped 2016-03-10 · 3852 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
| 📅 10y+ since last update | Likely abandoned |
| 👥 Small user base (119 ratings) + 16.9y old | +10% (solo-project pattern) |
| • 17y old + 1y+ no update | +5% (API deprecation drift) |
Verdict
Likely abandoned
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$3.6K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: review-mined risks present
6 months
$3.0K – $7.1K
12 months
$3.1K – $11.3K
24 months
$2.9K – $26.1K
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 · 37/100INDIE TIERFREE (NO MONETIZATION)limited signalGrowth Velocity
5.0
Founder Strength
5.8
Product Quality
4.1
Revenue Strength
3.6
Monetization Maturity
0.5
Defensibility
6.0
Market Position
1.2
Operational Safety
3.2
- 💰 Revenue: Modest — $1K - $8K/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 3.97★ across 119 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 3849d ago — possibly dormant.
- ⚠️ Risk: High — rating drift -0.79 ★ (recent 50 vs lifetime), dormant (3849d 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 = $42K-$78K. Portfolio play ($67K/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 10 of 10 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 | |
| worth every pennyREVIEW | +$2,000 | |
| bugsREVIEW | −$1,800 | |
| 5 starREVIEW | +$1,800 | |
| securityREVIEW | +$1,800 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (16y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Early-stage install base (119 ratings)METRIC | +$400 | |
| Single-language (English only)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 · v3.5.8
Fixed issue with weather feed.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- My Pain Diary: Chronic Pain & Symptom Tracker
- Developer
- Damon Lynn
- Bundle ID
- com.damonlynn.mypaindiary
- App Store URL
- Open in App Store
- Category
- Education
- Content rating
- 17+
- Languages
- EN
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
- $3.6K/mo
- Top-grossing rank
- Outside top 100 in US Education
- 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 growth120 ratings+-62% lifetimeShow 3-year history estimate ▾
Tracked (60 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.
💰Pricing History$0.00 → $4.99 (+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
Heads up! There's a new and improved version of this app named "My Pain Diary: GOLD EDITION".
Find it below in the 'Developer Apps' section or search for it by name.
Track your chronic pain, symptoms, triggers and more to create detailed reports you doctor will love!
- "My surgeon spotted something by looking at my graph and was able to diagnose another condition, which is now being treated."
Join more than 80,000 chronic pain sufferers who have better managed their pain and symptoms with My Pain Diary.… View full description on the official store →
Find it below in the 'Developer Apps' section or search for it by name.
Track your chronic pain, symptoms, triggers and more to create detailed reports you doctor will love!
- "My surgeon spotted something by looking at my graph and was able to diagnose another condition, which is now being treated."
Join more than 80,000 chronic pain sufferers who have better managed their pain and symptoms with My Pain Diary.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 18 MB🔞 17+📱 iOS 7.1+🔖 v3.5.8🔄 updated 10y ago🌐 EN📂 Education💰 Paid🚀 Launched 2009 (16y old)
📅
What Worked™ · Development Pipeline
11 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
⭐
Rating ↓ 4.50 → 3.97 (dropped 0.53★)
2026-05
💲
Went paid — introduced $4.99 price point
2023-02
📈
Crossed 500 ratings — social-proof flywheel kicking in
2012-11
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$3.3K/mo · reviews +14 medium · co-occurring
2012-11
📈
Crossed 100 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$8.1K/mo · rating −0.10★ · reviews +34 medium · co-occurring
2012-07
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$3.2K/mo · reviews +13 high confidence
2012-07
📈
Crossed 50 ratings — social-proof flywheel kicking in
→ 30 days after: revenue +$11.2K/mo · reviews +46 high confidence
2012-06
🚀
First tracked snapshot — initial data captured
→ 30 days after: revenue +$8.1K/mo · reviews +33 high confidence
2012-06
📈
Crossed 10 ratings — social-proof flywheel kicking in
2012-06
🚀
First tracked snapshot — initial data captured
2012-06
⭐
Rating ↓ 5.00 → 4.50 (dropped 0.50★)
🗣
Voice of Customer
Based on 497 reviews across 3 markets● 84% positive · ● 2% neutral · ● 14% negative · Rating drift: -0.79★ (declining — recent 50: 3.18★ vs lifetime: 3.97★)
VADER compound sentiment per quarter (−1 = fully negative, +1 = fully positive). Each point ≥ 5 reviews.
Sentiment by country (−1 to +1)
🇨🇦 CA
+0.69
🇦🇺 AU
+0.60
🇺🇸 US
+0.53
Top praise themes
keep track ×61 highly recommend ×20 being able ×19 recommend anyone ×18 helps keep ×14 track symptoms ×14 it's easy ×14 user friendly ×12
Top complaint themes
gold edition ×3 one ×11 disappointed ×11 crashes ×10 track ×7 weather ×7 now ×6 money ×6
Risk signals
Refund mentions: 0.6% Bug mentions: 3%
🌍
Multi-Country Performance
Available in 4 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.11111★ | 9 | 4.11111★ this version |
| 🇨🇦 CA | 3.33333★ | 9 | 3.33333★ this version |
| 🇬🇧 GB | 4.45455★ | 11 | 4.45455★ this version |
| 🇺🇸 US | 3.94167★ | 120 | 3.94167★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for My Pain Diary: Chronic Pain & Symptom Tracker: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by Damon Lynn
View all →📦 Portfolio summaryINDIE studio
2apps·$8K/mocombined
Lead-app heavy — top app contributes 58%
About this analysis
Why medium confidence: 119 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
10 answers · auto-generated from this app's public dataHow much does My Pain Diary make per month?▴
Based on our ML-calibrated revenue forecast, My Pain Diary earns approximately $3.6K/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 My Pain Diary profitable?▴
With estimated build cost $160K and monthly revenue $3.6K, My Pain Diary looks slow ROI — payback period is around 3.8 years 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 My Pain Diary have?▴
Estimated audience: ~7K lifetime downloads, ~250 monthly active users, and ~70 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 My Pain Diary?▴
Browse the full Education 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 My Pain Diary built with?▴
Our heuristic places My Pain Diary 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 My Pain Diary still actively maintained?▴
Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 10+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would My Pain Diary sell for?▴
Estimated acquisition value: $50K (marketplace range $45K – $75K). Calculated as 16× 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 My Pain Diary last updated?▴
My Pain Diary last shipped a new version on 2016-03-10 — more than 10 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes My Pain Diary?▴
My Pain Diary is published by Damon Lynn 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 My Pain Diary's BU Score?▴
My Pain Diary has a BU Score of 60/100 (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.