Karl's Mortgage Calculator Pro
58
Quality Score
Solid
Karl's Mortgage Calculator Pro
by Karl Jeacle
Low confidence
✍️ Bumetric analysis
“
Karl's Mortgage Calculator Pro is an iOS app from Karl Jeacle in the Finance category, currently rated 4.8★ across 10 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 58: Solid (established niche player). For a Finance 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
$1.4K
per month
→
12-mo forecast
$1.2K – $4.4K
per month
→
24-mo forecast
$1.1K – $10.1K
per month
INDIE 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
9 snapshots on record
Rating
4.8
Reviews
10 reviews
Forecast Revenue / mo
$1.4K
Snapshots tracked
9
since Jun 2020
🤖Also on Android
$499/mo · 223 ratings · 4.7★
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
📈
Slow ROI — current MRR is well below build cost
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 |
| ⚙ Finance complexity ×1.60 | +$30K |
| ⚙ 8.9y maintenance × ~1-person team | +$53K |
Total estimate
$135K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$30K
↳ What it would sell for · not monthly revenue
Marketplace range $25K – $40K · 22× MRR multiple
💸
~0.2× 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 |
| 📅 8.9y proven track record | +20% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Finance category multiple | +15% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
22× 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 | 14 MB |
| 🏷 Category context | Finance |
| 📦 Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
💀 Maintenance status
Slowing
25%
Last shipped 2026-07-24 · 66 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
| 📅 66 days since last update | Healthy release cadence |
| 👥 Small user base (10 ratings) + 8.9y old | +10% (solo-project pattern) |
Verdict
Slowing
🔬
How we forecast this revenue
MEDIUM CONFIDENCEBaseline
$1.4K/mo · ML-estimated from 234 triggers
Growth rate
+6.0% MoM · INDIE tier baseline (compound monthly)
Direction
Headwinds: rating drift may slow acquisition
6 months
$1.2K – $2.8K
12 months
$1.2K – $4.4K
24 months
$1.1K – $10.1K
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
Early-stage solo · 42/100INDIE TIERexpected for tierGrowth Velocity
5.0
Founder Strength
4.1
Product Quality
3.8
Revenue Strength
3.1
Monetization Maturity
1.0
Defensibility
4.2
Market Position
2.0
Operational Safety
10.0
- 💰 Revenue: Modest — $555 - $3474/mo · INDIE tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.8★ across 10 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: Insufficient signal to assess trajectory.
- ⚠️ Risk: Low — no material risk signals detected.
🎯 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 = $25K-$44K.
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 5 of 5 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 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| Mature app (8y old)METRIC | +$1,500 | |
| Single-language (English only)METRIC | −$400 | |
| Pre-traction phase (10 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 · v2.7.1
2.7.1
- Darker color scheme
- Indian currency
- Bug fixes
- Darker color scheme
- Indian currency
- Bug fixes
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Karl's Mortgage Calculator Pro
- Developer
- Karl Jeacle
- Bundle ID
- com.drcalculator.ios.mortgagepro
- App Store URL
- Open in App Store
- Category
- Finance
- Content rating
- 4+
- 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
- $1.4K/mo
- Top-grossing rank
- Outside top 100 in US Finance
- 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 growth10 ratings+900% lifetimeShow 3-year history estimate ▾
Tracked (9 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 → $1.99 (+0%)
🚀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
This is the Pro version of Karl's Mortgage Calculator. The only change from the free version is that the adverts have been removed.
Calculate mortgage payments given principal, interest and term. Reverse calculate any one variable given the other three.
Enter a down payment amount or percentage and let the calculator show how large a mortgage you require.
See how the monthly payment changes when you factor in additional monthly or annual loan costs such as PMI, HOA, taxes and insurance.… View full description on the official store →
Calculate mortgage payments given principal, interest and term. Reverse calculate any one variable given the other three.
Enter a down payment amount or percentage and let the calculator show how large a mortgage you require.
See how the monthly payment changes when you factor in additional monthly or annual loan costs such as PMI, HOA, taxes and insurance.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 14 MB🔞 4+📱 iOS 15.0+🔖 v2.7.1🔄 updated 2mo ago🌐 EN📂 Finance💰 Paid🚀 Launched 2017 (8y old)
📅
What Worked™ · Development Pipeline
6 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 →
2026-09
📸
Refreshed store screenshots — 10 of 10 updated
2026-07
🔧
Shipped update — v2.5.2 → v2.7.1
2026-05
💲
Went paid — introduced $1.99 price point
2026-05
📈
Crossed 10 ratings — social-proof flywheel kicking in
2022-06
⭐
Rating ↓ 5.00 → 4.33 (dropped 0.67★)
2020-06
🚀
First tracked snapshot — initial data captured
📸
Store Page History
10 SCREENSHOT CHANGESEvery time a developer swaps a store screenshot we archive both versions. Compare side-by-side to see what messaging / visuals changed.
iPad screenshots
Slot 1
2 ver.
2 ver.
2026-05-19
2026-09-01
Slot 2
2 ver.
2 ver.
2026-05-19
2026-09-01
Slot 3
2 ver.
2 ver.
2026-05-19
2026-09-01
Slot 4
2 ver.
2 ver.
2026-05-19
2026-09-01
Slot 5
2 ver.
2 ver.
2026-05-19
2026-09-01
iPhone screenshots
Slot 1
2 ver.
2 ver.
2026-05-19
2026-09-01
Slot 2
2 ver.
2 ver.
2026-05-19
2026-09-01
Slot 3
2 ver.
2 ver.
2026-05-19
2026-09-01
Slot 4
2 ver.
2 ver.
2026-05-19
2026-09-01
Slot 5
2 ver.
2 ver.
2026-05-19
2026-09-01
🌍
Multi-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 0★ | 0 | — |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇨🇦 CA | 5★ | 2 | 5★ this version |
| 🇩🇪 DE | 0★ | 0 | — |
| 🇫🇷 FR | 0★ | 0 | — |
| 🇬🇧 GB | 0★ | 0 | — |
| 🇮🇳 IN | 0★ | 0 | — |
| 🇯🇵 JP | 0★ | 0 | — |
| 🇺🇸 US | 4.8★ | 10 | 4.8★ this version |
🔔
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📝 Description
95
BU Score · Transcendent
About this analysis
Why low confidence: only 10 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
📌 Final verdict — read this before you trust the numbers above
Karl's Mortgage Calculator Pro is a early-stage iOS app in the finance space with weak public traction — only 10 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 Karl's Mortgage Calculator Pro make per month?▴
Our model estimates Karl's Mortgage Calculator Pro earns roughly $1.4K/mo, but with only 10 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 Karl's Mortgage Calculator Pro?▴
Browse the full Finance 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 Karl's Mortgage Calculator Pro built with?▴
Our heuristic places Karl's Mortgage Calculator Pro 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 Karl's Mortgage Calculator Pro 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.
When was Karl's Mortgage Calculator Pro last updated?▴
Karl's Mortgage Calculator Pro last shipped a new version on 2026-07-24 — 2 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Karl's Mortgage Calculator Pro?▴
Karl's Mortgage Calculator Pro is published by Karl Jeacle 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 Karl's Mortgage Calculator Pro's BU Score?▴
Karl's Mortgage Calculator Pro has a BU Score of 58/100 (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.