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Harpa Cristã: Áudio e offline

78
Quality Score
Strong

Harpa Cristã: Áudio e offline

High confidence
4.9 Google Play rating
✍️ Bumetric analysis

Harpa Cristã: Áudio e offline is an Android app from Master Apps IT in the Books & Reference category, currently rated 4.9★ across 91,983 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.

Quality Score is 78: Strong (healthy traction). For a Books & Reference app, that means healthy traction. 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
$700K
per month
12-mo forecast
$741K – $1141K
per month
24-mo forecast
$886K – $1645K
per month
BIG tier
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📊 Performance Tracking LIVE

1 snapshots on record
idle
0%
Rating
4.9
Reviews
91,983 reviews
Forecast Revenue / mo
$700K
Snapshots tracked
1
since May 2026
ONE-TIME · BUILD 💰 Estimated build cost
$135K
What it cost to build · not monthly revenue
Likely range $100K – $180K
$25K · MVP floor $100K · indie scale $500K+ · studio build
📈 Pays back in under a month 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
Books & Reference complexity ×0.95 $-2975
🌐 Cross-platform reach (iOS + Android) +$31K
8.1y maintenance × ~1-person team +$48K
Total estimate $135K
ONE-TIME · EXIT VALUE 💵 Estimated acquisition value
$26.5M
What it would sell for · not monthly revenue
Marketplace range $20.0M – $34.5M · 38× MRR multiple
💸 ~196× return on build cost

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
📅 8.1y proven track record +20%
★ rating ≥ 4.7 (premium) +15%
🏷 Books & Reference category multiple -2%
Final multiple 38× MRR
👥 Estimated audience size
7.0M
Lifetime downloads (US-equivalent)
Monthly active
445K
Daily active
89K

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
📲 Books & Reference engagement ~110 installs / rating
📅 8.1y of rating accumulation -30%
🔁 Books & Reference D30 retention 10%
📍 DAU / MAU stickiness 0.20
DAU / MAU 20% 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 Books & Reference
📦 Compact Android bundle → Native Kotlin
💀 Maintenance status
At risk
50%
Last shipped 2026-03-11 · 196 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
📅 6 months since last update Concerning gap
Verdict At risk
🔬

How we forecast this revenue

MEDIUM CONFIDENCE
Baseline
$700K/mo · ML-estimated from 234 triggers
Growth rate
+2.5% MoM · BIG tier baseline (compound monthly)
6 months
$690K – $933K
12 months
$741K – $1.1M
24 months
$886K – $1.6M
Compound growth at +2.5% MoM (tier baseline for BIG). Range widens with horizon — typical noise band ±15% at 6mo.. Ranges widen with horizon — distant futures carry more uncertainty.
📊

BU Investment Matrix

Mixed signals · 62/100BIG TIERcompetitive but cautious
GrowthFounderQualityRevenueMonetiz.MoatMarketSafety
Growth Velocity
5.0
Founder Strength
5.6
Product Quality
9.7
Revenue Strength
5.8
Monetization Maturity
5.0
Defensibility
9.5
Market Position
0.0
Operational Safety
9.0
  • 💰 Revenue: Healthy — $280K - $1540K/mo · BIG tier · medium-low confidence, trajectory unclear.
  • ⭐ Quality: 4.86★ across 91,983 reviews — exceptional (top 1% in category).
  • 📍 Market: Not yet charting in any of the 9 monitored markets.
  • 📈 Growth: last update 193d ago — slow cadence.
  • ⚠️ Risk: Low — no material risk signals detected.
🎯 For competitors: Strong subscription moat. Hard to outcompete on retention. Better angle: free alternative with one-time purchase, or feature parity for an underserved sub-niche.
💵 For acquirers: Estimated asking range 18-32× monthly = $12.6M-$22.4M.
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 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mid install base (91,983 ratings)METRIC
+$5,500
Excellent rating (4.9★)METRIC
+$2,200
excellent appREVIEW
+$1,500
Mature app (8y old)METRIC
+$1,500
Ad-supported / freemiumMETRIC
+$600
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.

Profile & Insights

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

Identification

App name
Harpa Cristã: Áudio e offline
Developer
Master Apps IT
Bundle ID
br.com.masterapps.harpacristagratis
App Store URL
Open in App Store
Category
Books & Reference
Content rating
Not found
Languages
Not found

Company

Website
master-apps-it.web.app
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
$700K/mo
Top-grossing rank
Not found
All-time revenue
Not found
Pricing
$1.49 - $12.99 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

Altogether there are 640 hymns of the Christian Harpa, hymnal of the Assembly of God Church in Brazil <b>with audio</b> and <b>ciphers</b>. Christian harp with audio of all hymns with option to <b>download harp anthem</b> for <b>offline listening</b>.

<b>Holy Bible</b>
The Christian Harp makes it easy for you to have all the features that a Christian needs within the same app.
Harp Bible with translations. Harp and Christian bible all in one place.

<b>Prayers</b>
Now you have a space to ask and thank God with your prayers.… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v0.2.159🔄 updated 6mo ago📂 Books & Reference💰 Free📺 Ad-supported💎 IAP $1.49 - $12.99 per item🚀 Launched 2018 (8y old)
🔔

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📝 Description

95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for Harpa Cristã: Áudio e offline: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
Read deep-dive →

More by Master Apps IT

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📦 Portfolio summaryBIG studio
8apps·$1.4M/mocombined
✓ Diversified — top app contributes 49%; risk spread across portfolio

Similar apps in Books & Reference

About this analysis
ZCAnalyzed by Zakhar Chumak · founder, Bumetric·Full methodology·High confidence

Why high confidence: 91,983 ratings · no founder-verified revenue (model estimate only).

Frequently Asked Questions

10 answers · auto-generated from this app's public data
How much does Harpa Cristã make per month?
Based on our ML-calibrated revenue forecast, Harpa Cristã earns approximately $700K/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 Harpa Cristã profitable?
With estimated build cost $135K and monthly revenue $700K, Harpa Cristã looks highly profitable — pays back its build investment in under a month 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 Harpa Cristã have?
Estimated audience: ~7.0M lifetime downloads, ~445K monthly active users, and ~89K 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 Harpa Cristã?
Browse the full Books & Reference 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 Harpa Cristã built with?
Our heuristic places Harpa Cristã 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 Harpa Cristã still actively maintained?
Maintenance status: At risk (50% abandonment risk). Last shipped version was 6 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Harpa Cristã sell for?
Estimated acquisition value: $26.5M (marketplace range $20.0M – $34.5M). 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 Harpa Cristã last updated?
Harpa Cristã last shipped a new version on 2026-03-11 — 6 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Harpa Cristã?
Harpa Cristã is published by Master Apps IT 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 Harpa Cristã's BU Score?
Harpa Cristã has a BU Score of 78/100 (Strong). The score combines App Store rating, ratings count, monetization model and revenue signals calibrated against founder-verified MRR anchors. See the BU Score formula.