How much does Common Mistakes in English make per month?

Based on our ML-calibrated revenue forecast, Common Mistakes in English earns approximately $500/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 Common Mistakes in English profitable?

With estimated build cost $110K and monthly revenue $500, Common Mistakes in English looks well below break-even — current monthly revenue is much smaller than the estimated build cost. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.

What is Common Mistakes in English built with?

Our heuristic places Common Mistakes in English 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 Common Mistakes in English still actively maintained?

Maintenance status: Slowing (25% abandonment risk). Last shipped version was 1 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.

How much would Common Mistakes in English sell for?

Estimated acquisition value: $10K (marketplace range $5.0K – $10K). 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 Common Mistakes in English last updated?

Common Mistakes in English last shipped a new version on 2026-08-26 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.

Who makes Common Mistakes in English?

Common Mistakes in English is published by ParentsCare 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 Common Mistakes in English's BU Score?

Common Mistakes in English 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.

Common Mistakes in English

Quality Score

Solid

Common Mistakes in English

Name: Common Mistakes in English — app revenue, audience, build cost & risk profile
Creator: Bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Common Mistakes in English revenue, Common Mistakes in English app analytics, mobile app revenue estimate, mobile app revenue, Android app revenue

by ParentsCare

Low confidence

4.2 Google Play rating

✍️ Bumetric analysis

“

Common Mistakes in English is an Android app from ParentsCare, currently rated 4.2★ across 98 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Quality Score is 52: Solid (established niche player). For an app like this, 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

$500

per month

→

12-mo forecast

$437 – $1575

per month

→

24-mo forecast

$405 – $3644

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

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Typical impact: +2-5× organic installs

📊 Performance Tracking LIVE

2 snapshots on record

idle

Rating

4.2

Reviews

98 reviews

Forecast Revenue / mo

$500

Snapshots tracked

since Aug 2026

ONE-TIME · BUILD 💰 Estimated build cost

$110K

↳ What it cost to build · not monthly revenue

Likely range $80K – $150K

$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
🌐 Cross-platform reach (iOS + Android)	+$27K
⚙ 5.6y maintenance × ~1-person team	+$33K

Total estimate $110K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$10K

↳ What it would sell for · not monthly revenue

Marketplace range $5K – $10K · 17× MRR multiple

💸 ~0.1× 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
📅 5.6y proven track record	+20%
⭐ Small user base (<1K ratings)	-8%

Final multiple 17× 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	category
📦 Compact Android bundle	→ Native Kotlin

💀 Maintenance status

Slowing

25%

Last shipped 2026-08-26 · 43 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

📅 43 days since last update	Healthy release cadence
👥 Small user base (98 ratings) + 5.6y old	+10% (solo-project pattern)

Verdict Slowing

🔬

How we forecast this revenue

LOW CONFIDENCE

Baseline

$500/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

$426 – $993

12 months

$437 – $1.6K

24 months

$405 – $3.6K

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 TIERlimited signal

Growth Velocity

5.0

Founder Strength

5.7

Product Quality

3.4

Revenue Strength

2.7

Monetization Maturity

1.0

Defensibility

5.0

Market Position

0.0

Operational Safety

7.0

💰 Revenue: Marginal — $200 - $1250/mo · INDIE tier · medium confidence, trajectory unclear.
⭐ Quality: 4.2★ across 97 reviews — weak — significant quality concerns.
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: ⚠ last update 431d ago — possibly dormant.
⚠️ Risk: Moderate — dormant (431d 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 = $9K-$16K. Portfolio play ($1K/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

MODEL

Revenue 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:

Good rating (4.2★)METRIC		+$800
Established app (5y old)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)

📥 Estimated Downloads / week

PROXY · ratings × 50/wk —

Industry-rule estimate (Sensor Tower / data.ai): one weekly install ≈ 50 new ratings. Solid points = tracked snapshots · faded line = pre-tracking model backfill.

📈 Reviews Growth

LIVE

Cumulative review count from first BU snapshot. Each point = a tracked update.

⭐ Rating Trend

LIVE

Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY

Each bar shows a tracked update and the metric delta from the previous snapshot.

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name: Common Mistakes in English
Developer: ParentsCare
Bundle ID: com.parents_care.common_mistakes_in_english
App Store URL: Not found
Category: Not found
Content rating: Not found
Languages: Not found

Company

Website: wd9968f02.app-ads-txt.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: $500/mo
Top-grossing rank: Not found
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.

🚀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

English Grammar is the most important over the world because it is our second language. Though it is our second language we have a practical english grammar mistake. We mistake english grammar learning and english grammar practice and english grammar rules and also we mistake overall a to z english grammar. For this reason we made this <b>common mistakes in english</b> app so that we remove common errors in english and learn about common error app and this common mistake in english app shows where we mistake commonly.… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

🔖 v1.13🔄 updated 1mo ago💰 Free / Ads / IAP📺 Ad-supported🚀 Launched 2021 (5y old)

📸