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Idle 42

Idle 42
Share:
55
Quality Score
Solid

Idle 42

Medium confidence
4.4 ✍️ Editor
Simulation
📚
Simulation
✍️ bumetric analysis
“

Idle 42 is an Android app from Number Engineer in the Simulation category, currently rated 4.4★ across 160 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Quality Score is 55: Solid (established niche player). For a Simulation 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
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📊 Performance Tracking LIVE

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idle
0%
Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
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
📈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
⚙Simulation complexity ×2.00+$50K
🌐Cross-platform reach (iOS + Android)+$55K
⚙7.4y maintenance × ~1-person team+$44K
Total estimate$200K
👥 Estimated audience size
15K
Lifetime downloads (US-equivalent)
Monthly active
1.5K
Daily active
450

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
📲Simulation engagement~140 installs / rating
📅7.4y of rating accumulation-30%
🔁Simulation D30 retention15%
📍DAU / MAU stickiness0.30
DAU / MAU30% sticky
🛠 Estimated tech stack
🤖
Native Android (Kotlin)
Medium confidence · 55%
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 contextSimulation
📦Tiny game bundle→ Native 2D engine
💀 Maintenance status
Likely abandoned
95%
Last shipped 2024-01-18 · 859 days ago
0 · Active50 · At risk100 · 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
📅2y+ since last updateLikely abandoned
👥Small user base (160 ratings) + 7.4y old+10% (solo-project pattern)
VerdictLikely abandoned
🔬

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 · 45/100MID TIERunderperforming peers
RevenueQualityMarketGrowthMoatSafetyFounderMonetiz.
Revenue Strength
3.7
Product Quality
6.2
Market Position
0.0
Growth Velocity
5.0
Defensibility
6.8
Operational Safety
7.0
Founder Strength
5.9
Monetization Maturity
1.0
  • 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
  • ⭐ Quality: 4.41★ across 160 reviews — solid.
  • 📍 Market: Not yet charting in any of the 9 monitored markets.
  • 📈 Growth: ⚠ last update 859d ago — possibly dormant.
  • ⚠️ Risk: Moderate — dormant (859d 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

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 (4.4★)METRIC
+$800
Established app (7y old)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
Early-stage install base (160 ratings)METRIC
+$400
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 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.
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v2.1🔄 updated 2y ago📂 Simulation💰 Free🚀 Launched 2018 (7y old)

📝 About this app

A simple idle game.
From the perspective of Deep Thought.
Hint: The answer to life, the universe and everything.
42.

Also, an introductory game to my bigger game, "Incremental Unlimited".

Enjoy.
🔔

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Profile & Insights

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

Identification

App name
Idle 42
Developer
Number Engineer
Bundle ID
antoine.mathematician.com.idle42
App Store URL
Open in App Store
Category
Simulation
Content rating
Not found
Languages
Not found

Company

Website
Not found
Tagline
Not found
Description
Not found
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
Not found

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$256/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.
📈Ratings growth160 ratings+50% lifetimeShow 3-year history estimate ▾Jun 2023Dec 2024May 2026
Tracked (1 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
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.

📝 Description

95
BU Score · Transcendent

❓ Frequently Asked Questions

Who is the author of The ?

The author is , a prominent figure in the study of occult philosophy and esoteric traditions.

What is the main theme of the book?

The main theme is the esoteric interpretation of the Book of Revelation, focusing on the mystical and symbolic meanings hidden within the text.

Why is this book important for modern esoteric seekers?

This book is important because it bridges ancient wisdom with contemporary spiritual practices, providing valuable insights into the esoteric traditions that have influenced Western spirituality.

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Full revenue analysis
Read the article-style breakdown for Idle 42: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →
About this analysis
ZCAnalyzed by Zakhar Chumak · founder, bumetric·Full methodology·Medium confidence

Why medium confidence: 160 ratings · no founder-verified revenue (model estimate only).

❓ Frequently Asked Questions

9 answers · auto-generated from this app's public data
How much does Idle 42 make per month?▴
Based on our ML-calibrated revenue forecast, Idle 42 earns approximately $255/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 Idle 42 profitable?▴
With estimated build cost $200K and monthly revenue $255, Idle 42 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.
How many users does Idle 42 have?▴
Estimated audience: ~15K lifetime downloads, ~1K monthly active users, and ~450 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 Idle 42?▴
Browse the full Simulation 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 Idle 42 built with?▴
Our heuristic places Idle 42 on the Native Android (Kotlin) stack (Medium confidence, 55%). Signals: app bundle size, category context, store-description markers, release-date era. We don't disassemble binaries. Alternative possibilities: Flutter.
Is Idle 42 still actively maintained?▴
Maintenance status: Likely abandoned (95% abandonment risk). Last shipped version was 2+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
When was Idle 42 last updated?▴
Idle 42 last shipped a new version on 2024-01-18 — more than 2 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Idle 42?▴
Idle 42 is published by Number Engineer 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 Idle 42's BU Score?▴
Idle 42 has a BU Score of 55/100 (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.