How much does JR make per month?

Based on our ML-calibrated revenue forecast, JR 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.

With estimated build cost $155K and monthly revenue $5.0K, JR looks break-even-grade — payback period sits around 2.6 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.

How many users does JR have?

Estimated audience: ~420K lifetime downloads, ~52K monthly active users, and ~15K 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 JR?

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 JR built with?

Our heuristic places JR 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 JR still actively maintained?

Maintenance status: Active (15% 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 JR sell for?

Estimated acquisition value: $200K (marketplace range $150K – $250K). Calculated as 38× 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 JR last updated?

JR last shipped a new version on 2026-09-28 — 1 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.

JR is published by HiTech Rush Inc 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 JR's BU Score?

JR has a BU Score of 64/100 (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.

JR: изучаем Java

Quality Score

Solid

JR: изучаем Java

Name: JR: изучаем Java — app revenue, audience, build cost & risk profile
Creator: Bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: JR: изучаем Java revenue, JR: изучаем Java app analytics, mobile app revenue estimate, Education revenue, Android app revenue

by HiTech Rush Inc

Medium confidence

4.5 Google Play rating

✍️ Bumetric analysis

“

JR: изучаем Java is an Android app from HiTech Rush Inc in the Education category, currently rated 4.5★ across 7,081 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Quality Score is 64: 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

$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

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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

4.5

Reviews

7,081 reviews

Forecast Revenue / mo

$5.0K

Snapshots tracked

since May 2026

ONE-TIME · BUILD 💰 Estimated build cost

$155K

↳ What it cost to build · not monthly revenue

Likely range $115K – $210K

$25K · MVP floor $100K · indie scale $500K+ · studio build

📈 Pays back in ~2.6y 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
⚙ Education complexity ×1.20	+$11K
🌐 Cross-platform reach (iOS + Android)	+$39K
⚙ 7.1y maintenance × ~1-person team	+$42K

Total estimate $155K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$200K

↳ What it would sell for · not monthly revenue

Marketplace range $150K – $250K · 38× MRR multiple

💸 ~1.3× build cost (break-even+)

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
📅 7.1y proven track record	+20%
⭐ ★ rating ≥ 4.4 (solid)	+8%
🏷 Education category multiple	+6%

Final multiple 38× MRR

👥 Estimated audience size

420K

Lifetime downloads (US-equivalent)

Monthly active

52K

Daily active

15K

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
📅 7.1y of rating accumulation	-30%
🔁 Education D30 retention	18%
📍 DAU / MAU stickiness	0.30

DAU / MAU 30% sticky

🛠 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	Education
📦 Compact Android bundle	→ Native Kotlin

💀 Maintenance status

Active

15%

Last shipped 2026-09-28 · 31 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

📅 31 days since last update

Healthy release cadence

Verdict Active

🔬

How we forecast this revenue

MEDIUM CONFIDENCE

Baseline

$5.0K/mo · ML-estimated from 234 triggers

Growth rate

+4.0% MoM · MID tier baseline (compound monthly)

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 · 53/100MID TIERunderperforming peers

Growth Velocity

5.0

Founder Strength

3.6

Product Quality

8.1

Revenue Strength

3.7

Monetization Maturity

4.0

Defensibility

7.8

Market Position

0.0

Operational Safety

10.0

💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
⭐ Quality: 4.52★ across 7,081 reviews — strong (top 10%).
📍 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 = $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

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 6 of 6 triggers

Our ML model uses 200+ signals from public data. These are the most influential for this app:

Excellent rating (4.5★)METRIC		+$2,200
5 starREVIEW		+$1,800
excellent appREVIEW		+$1,500
Low install base (7,081 ratings)METRIC		+$1,500
Established app (7y old)METRIC		+$800
Ad-supported / freemiumMETRIC		+$600

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: JR: изучаем Java
Developer: HiTech Rush Inc
Bundle ID: com.hitechrush.jaxarush
App Store URL: Open in App Store
Category: Education
Content rating: Not found
Languages: Not found

Company

Website: javarush.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: $0.99 - $59.99 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.

🚀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

Learning Java programming from scratch in the format of a quest game from JavaRush developers. The course contains 1200 practical tasks and 600 mini-lectures.

Dreaming of becoming a developer, but no time for offline courses? No problem. Now you can devote as much time to your training as possible and study anywhere. Even half an hour is enough to give 1-2 lectures and solve several problems :)

Our Java course is built in a game format that consists of 4 quests. Each quest has 10 levels with lectures and tasks.… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

🔖 v1.0.90🔄 updated 1mo ago📂 Education💰 Free💎 IAP $0.99 - $59.99 per item🚀 Launched 2019 (7y old)

📸

Store Page History

1 SCREENSHOT CHANGE

Every time a developer swaps a store screenshot we archive both versions. Compare side-by-side to see what messaging / visuals changed.

iPhone screenshots

Slot 1
2 ver.

2026-05-23

Now

2026-10-28

🧪

Tech & Domain Intel — javarush.com

Mail provider: Microsoft 365
Tech stack: Microsoft 365 · Meta (Facebook) Ads

Derived from public RDAP + DNS TXT records (no scraping, no login).

🔔

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📝 Description

BU Score · Transcendent

Full revenue analysis

Read the article-style breakdown for JR: изучаем Java: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.

Read deep-dive →