Tax & Discounts Calculator
52
Quality Score
Solid
✍️ Bumetric analysis
“
Tax & Discounts Calculator is an Android app from Rome Rock App Studio in the Finance category, currently rated 4.2★ across 98 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 52: 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
$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
1 snapshots on record
Rating
4.2
Reviews
98 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
1
since Jun 2026
ONE-TIME · BUILD
💰 Estimated build cost
$200K
↳ What it cost to build · not monthly revenue
Likely range $150K – $270K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~3.3y 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 |
| 💎 In-app purchase plumbing | +$9K |
| ⚙ Finance complexity ×1.60 | +$35K |
| 🌐 Cross-platform reach (iOS + Android) | +$52K |
| ⚙ 8.4y maintenance × ~1-person team | +$50K |
Total estimate
$200K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$175K
↳ What it would sell for · not monthly revenue
Marketplace range $125K – $225K · 36× MRR multiple
💸
~0.9× build cost (under-water)
Synthetic estimate. Multiple band derived from iap / freemium model + 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
| 💎 IAP / freemium model base | 28× MRR |
| 📅 8.4y proven track record | +20% |
| 🏷 Finance category multiple | +15% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
36× MRR
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
High confidence · 80%
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
| 🏷 Category context | Finance |
| 📦 Compact Android bundle | → Native Kotlin |
💀 Maintenance status
Likely abandoned
95%
Last shipped 2018-12-11 · 2859 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
| 📅 7y+ since last update | Likely abandoned |
| 👥 Small user base (98 ratings) + 8.4y 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 · 50/100MID TIERunderperforming peersRevenue Strength
3.7
Product Quality
3.4
Market Position
0.0
Growth Velocity
5.0
Defensibility
9.6
Operational Safety
7.0
Founder Strength
6.0
Monetization Maturity
5.0
- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.2★ across 98 reviews — weak — significant quality concerns.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 2859d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (2859d 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 6 of 6 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| 5 starREVIEW | +$1,800 | |
| Mature app (8y old)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Good rating (4.2★)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Pre-traction phase (98 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.
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- Tax & Discounts Calculator
- Developer
- Rome Rock App Studio
- Bundle ID
- com.romerock.apps.utilities.salestaxdiscountcalculator
- App Store URL
- Open in App Store
- Category
- Finance
- Content rating
- Not found
- Languages
- Not found
Company
- Website
- apps.romerock.com
- Tagline
- Not found
- Description
- Not found
- Founded
- Not found
- HQ / Address
- Not found
- Employees
- Not found
- Logo
- Not found
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
- Not found
- All-time revenue
- Not found
- Pricing
- $4.99 - $9.99 per item
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.
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
⭐️ Easily calculate Sales Tax based on your location the app also calculates the final price for your product adding as many discounts as needed and also includes a global library of taxes per Country, like the taxes by city and state in the US or by Province in Canada
Our App's Coolest features:
🔹 Add as many discounts & rebates as you need, our app will give you the final price, with and without tax
🔹 The App will give you the correct tax percentage depending on your location, we have a whole library with all the tax rates in the US, Canada, México, France, UK and all over the world… View full description on the official store →
Our App's Coolest features:
🔹 Add as many discounts & rebates as you need, our app will give you the final price, with and without tax
🔹 The App will give you the correct tax percentage depending on your location, we have a whole library with all the tax rates in the US, Canada, México, France, UK and all over the world… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →🔖 vVaries with device🔄 updated 7y ago📂 Finance💰 Free📺 Ad-supported💎 IAP $4.99 - $9.99 per item🚀 Launched 2018 (8y old)
🔔
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📝 Description
95
BU Score · Transcendent
More by Rome Rock App Studio
View all →📦 Portfolio summaryBIG studio
22apps·$2.1M/mocombined
⚠ Concentrated — top app contributes 96% of combined revenue (single-app dependency)
About this analysis
Why low confidence: only 98 ratings · no founder-verified revenue (model estimate only) · revenue figure is directional only.
❓ Frequently Asked Questions
9 answers · auto-generated from this app's public dataHow much does Tax & Discounts Calculator make per month?▴
Based on our ML-calibrated revenue forecast, Tax & Discounts Calculator 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 Tax & Discounts Calculator profitable?▴
With estimated build cost $200K and monthly revenue $5.0K, Tax & Discounts Calculator looks slow ROI — payback period is around 3.3 years at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
What apps are like Tax & Discounts Calculator?▴
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 Tax & Discounts Calculator built with?▴
Our heuristic places Tax & Discounts Calculator on the Native Android (Kotlin) stack (High confidence, 80%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Tax & Discounts Calculator still actively maintained?▴
Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 7+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Tax & Discounts Calculator sell for?▴
Estimated acquisition value: $175K (marketplace range $125K – $225K). Calculated as 36× 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 Tax & Discounts Calculator last updated?▴
Tax & Discounts Calculator last shipped a new version on 2018-12-11 — more than 7 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Tax & Discounts Calculator?▴
Tax & Discounts Calculator is published by Rome Rock App Studio on the Google Play 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 Tax & Discounts Calculator's BU Score?▴
Tax & Discounts Calculator has a BU Score of 52/100 (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.