How much does Riddle Stones - Cross Numbers make per month?

Based on our ML-calibrated revenue forecast, Riddle Stones - Cross Numbers 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 Riddle Stones - Cross Numbers profitable?

With estimated build cost $215K and monthly revenue $5.0K, Riddle Stones - Cross Numbers looks slow ROI — payback period is around 3.6 years at the current run-rate. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.

How many users does Riddle Stones - Cross Numbers have?

Estimated audience: ~2.4M lifetime downloads, ~105K monthly active users, and ~33K 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 Riddle Stones - Cross Numbers?

Browse the full Puzzle 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 Riddle Stones - Cross Numbers built with?

Our heuristic places Riddle Stones - Cross Numbers 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 Riddle Stones - Cross Numbers still actively maintained?

Maintenance status: Likely abandoned (93% abandonment risk). Last shipped version was 5+ years ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.

How much would Riddle Stones - Cross Numbers sell for?

Estimated acquisition value: $150K (marketplace range $100K – $200K). Calculated as 30× 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 Riddle Stones - Cross Numbers last updated?

Riddle Stones - Cross Numbers last shipped a new version on 2021-01-19 — more than 5 year(s) ago. This is the date Apple / Google last accepted a new build, not a content-only push.

Who makes Riddle Stones - Cross Numbers?

Riddle Stones - Cross Numbers is published by ooblada by SMACH 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 Riddle Stones - Cross Numbers's BU Score?

Riddle Stones - Cross Numbers has a BU Score of 67/100 (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.

Riddle Stones - Cross Numbers

Quality Score

Solid

Riddle Stones - Cross Numbers

Name: Riddle Stones - Cross Numbers — app revenue, audience, build cost & risk profile
Creator: Bumetric
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Riddle Stones - Cross Numbers revenue, Riddle Stones - Cross Numbers app analytics, mobile app revenue estimate, Puzzle revenue, Android app revenue

by ooblada by SMACH

High confidence

4.1 Google Play rating

✍️ Bumetric analysis

“

Riddle Stones - Cross Numbers is an Android app from ooblada by SMACH in the Puzzle category, currently rated 4.1★ across 21,418 ratings. Initial signal reads as mostly critical sentiment so far: users flag rough edges and unmet expectations.

Quality Score is 67: Solid (established niche player). For a Puzzle 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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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

5 snapshots on record

idle

Rating

4.1

Reviews

21,418 reviews

Forecast Revenue / mo

$5.0K

Snapshots tracked

since May 2026

ONE-TIME · BUILD 💰 Estimated build cost

$215K

↳ What it cost to build · not monthly revenue

Likely range $160K – $290K

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

📈 Pays back in ~3.6y 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
⚙ Puzzle complexity ×1.60	+$35K
🌐 Cross-platform reach (iOS + Android)	+$52K
⚙ 11.1y maintenance × ~1-person team	+$66K

Total estimate $215K

ONE-TIME · EXIT VALUE 💵 Estimated acquisition value

$150K

↳ What it would sell for · not monthly revenue

Marketplace range $100K – $200K · 30× MRR multiple

💸 ~0.7× 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
📅 11.1y proven track record	+20%
🏷 Puzzle category multiple	-12%

Final multiple 30× MRR

👥 Estimated audience size

2.4M

Lifetime downloads (US-equivalent)

Monthly active

105K

Daily active

33K

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

📲 Puzzle engagement	~160 installs / rating
📅 11.1y of rating accumulation	-30%
🔁 Puzzle D30 retention	10%
📍 DAU / MAU stickiness	0.32

DAU / MAU 32% 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 context	Puzzle
📦 Tiny game bundle	→ Native 2D engine

💀 Maintenance status

Likely abandoned

93%

Last shipped 2021-01-19 · 2088 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

📅 5y+ since last update	Likely abandoned
• 11y old + 1y+ no update	+5% (API deprecation drift)

Verdict Likely 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 · 49/100MID TIERunderperforming peers

Growth Velocity

5.0

Founder Strength

3.1

Product Quality

8.2

Revenue Strength

3.7

Monetization Maturity

5.0

Defensibility

7.0

Market Position

0.0

Operational Safety

7.0

💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
⭐ Quality: 4.08★ across 21,418 reviews — strong (top 10%).
📍 Market: Not yet charting in any of the 9 monitored markets.
📈 Growth: ⚠ last update 2085d ago — possibly dormant.
⚠️ Risk: Moderate — dormant (2085d 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:

Mid install base (21,418 ratings)METRIC		+$5,500
Mature app (11y old)METRIC		+$1,500
Good rating (4.1★)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: Riddle Stones - Cross Numbers
Developer: ooblada by SMACH
Bundle ID: air.com.ooblada.riddlestones
App Store URL: Open in App Store
Category: Puzzle
Content rating: Not found
Languages: Not found

Company

Website: www.ooblada.net
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 - $79.00 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

Love logic deduction games and number puzzles like sudoku?

Riddle Stones is a game of logic that will train your brain: like crosswords but with squares and numbers. The game is based on the asian riddles known as picross, griddler and nonogram. It’s a real mind challenge wrapped in a fun experience where you need to think and use your brains to succeed.

To decipher our puzzle grids, you will use numbers indicating which squares to activate in each grid based on simple rules. Each number tells you where to add squares in a row or a column.… View full description on the official store →

App Specs

🔐 Own this app? Claim & verify MRR →

🔖 vVaries with device🔄 updated 5y ago📂 Puzzle💰 Free📺 Ad-supported💎 IAP $0.99 - $79.00 per item🚀 Launched 2015 (11y old)

📅

What Worked™ · Development Pipeline

2 EVENTS TRACKED

Detected 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 →

2026-06

📸

Refreshed store screenshots — 8 of 8 updated

2026-05

🚀

First tracked snapshot — initial data captured

📸

Store Page History

8 SCREENSHOT CHANGES

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.

2026-05-11

Now

2026-06-13

Slot 2
2 ver.

2026-05-11

Now

2026-06-13

Slot 3
2 ver.

2026-05-11

Now

2026-06-13

Slot 4
2 ver.

2026-05-11

Now

2026-06-13

Slot 5
2 ver.

2026-05-11

Now

2026-06-13

Slot 6
2 ver.

2026-05-11

Now

2026-06-13

🔔

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📝 Description

BU Score · Transcendent

Full revenue analysis

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

Read deep-dive →