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Cartas Romanticas de Amor

57
Quality Score
Solid

Cartas Romanticas de Amor

Medium confidence
4.4 Google Play rating
✍️ Bumetric analysis
“

Cartas Romanticas de Amor is an Android app from RRT Developers Apps in the Entertainment category, currently rated 4.4★ across 280 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.

Quality Score is 57: Solid (established niche player). For a Entertainment 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

1 snapshots on record
idle
0%
Rating
4.4
Reviews
280 reviews
Forecast Revenue / mo
$5.0K
Snapshots tracked
1
since Jun 2026
ONE-TIME · BUILD 💰 Estimated build cost
$150K
↳ What it cost to build · not monthly revenue
Likely range $110K – $200K
$25K · MVP floor $100K · indie scale $500K+ · studio build
📈 Pays back in ~2.5y 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
⚙ Entertainment complexity ×1.30 +$15K
🌐 Cross-platform reach (iOS + Android) +$36K
⚙ 8.4y maintenance × ~1-person team +$50K
Total estimate $150K
ONE-TIME · EXIT VALUE 💵 Estimated acquisition value
$75K
↳ What it would sell for · not monthly revenue
Marketplace range $75K – $100K · 17× MRR multiple
💸 ~0.5× 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
📅 8.4y proven track record +20%
⭐ ★ rating ≥ 4.4 (solid) +8%
🏷 Entertainment category multiple -5%
⭐ Small user base (<1K ratings) -8%
Final multiple 17× MRR
👥 Estimated audience size
29K
Lifetime downloads (US-equivalent)
Monthly active
2.1K
Daily active
840

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
📲 Entertainment engagement ~150 installs / rating
📅 8.4y of rating accumulation -30%
🔁 Entertainment D30 retention 12%
📍 DAU / MAU stickiness 0.40
DAU / MAU 40% 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 Entertainment
📦 Compact Android bundle → Native Kotlin
💀 Maintenance status
At risk
60%
Last shipped 2025-11-11 · 317 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
📅 10 months since last update Concerning gap
👥 Small user base (280 ratings) + 8.4y old +10% (solo-project pattern)
Verdict At risk
🔬

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 · 47/100MID TIERunderperforming peers
GrowthFounderQualityRevenueMonetiz.MoatMarketSafety
Growth Velocity
5.0
Founder Strength
5.7
Product Quality
6.2
Revenue Strength
3.7
Monetization Maturity
1.0
Defensibility
7.1
Market Position
0.0
Operational Safety
9.0
  • 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
  • ⭐ Quality: 4.44★ across 280 reviews — solid.
  • 📍 Market: Not yet charting in any of the 9 monitored markets.
  • 📈 Growth: last update 313d ago — slow cadence.
  • ⚠️ 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 4 of 4 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Mature app (8y old)METRIC
+$1,500
Good rating (4.4★)METRIC
+$800
Ad-supported / freemiumMETRIC
+$600
Early-stage install base (280 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.

Profile & Insights

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

Identification

App name
Cartas Romanticas de Amor
Developer
RRT Developers Apps
Bundle ID
com.rrtdevelopers.cartasromanticasdeamor
App Store URL
Open in App Store
Category
Entertainment
Content rating
Not found
Languages
Not found

Company

Website
rrtdevelopersapps.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
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.
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

Do you want to dedicate a love letter to your partner but you don't know what to write? Romantic Love Letters in Spanish contains:

1. Love letters for all occasions: Valentine's Day, for my boyfriend, for my girlfriend, letters for husbands, impossible love, long-distance love, anniversaries and more!
2. Night mode
3. Possibility to increase the font size
4. Possibility of saving your letters to fall in love in FAVORITES
5. SPANISH language… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →
🔖 v2.3.30🔄 updated 10mo ago📂 Entertainment💰 Free📺 Ad-supported🚀 Launched 2018 (8y old)
🔔

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📝 Description

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

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📦 Portfolio summaryINDIE studio
20apps·$54K/mocombined
✓ Diversified — top app contributes 9%; risk spread across portfolio

Similar apps in Entertainment

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

Why medium confidence: 280 ratings · no founder-verified revenue (model estimate only).

❓ Frequently Asked Questions

10 answers · auto-generated from this app's public data
How much does Cartas Romanticas de Amor make per month?▴
Based on our ML-calibrated revenue forecast, Cartas Romanticas de Amor 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 Cartas Romanticas de Amor profitable?▴
With estimated build cost $150K and monthly revenue $5.0K, Cartas Romanticas de Amor looks break-even-grade — payback period sits around 2.5 years. Profitability also depends on paid-acquisition spend and refund rate which the public model doesn't see.
How many users does Cartas Romanticas de Amor have?▴
Estimated audience: ~29K lifetime downloads, ~2K monthly active users, and ~840 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 Cartas Romanticas de Amor?▴
Browse the full Entertainment 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 Cartas Romanticas de Amor built with?▴
Our heuristic places Cartas Romanticas de Amor 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 Cartas Romanticas de Amor still actively maintained?▴
Maintenance status: At risk (60% abandonment risk). Last shipped version was 10 months ago. The risk score combines time-since-last-update with Editor's Choice / curated featuring + user-base maturity adjustments.
How much would Cartas Romanticas de Amor sell for?▴
Estimated acquisition value: $75K (marketplace range $75K – $100K). 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 Cartas Romanticas de Amor last updated?▴
Cartas Romanticas de Amor last shipped a new version on 2025-11-11 — 10 months ago. This is the date Apple / Google last accepted a new build, not a content-only push.
Who makes Cartas Romanticas de Amor?▴
Cartas Romanticas de Amor is published by RRT Developers Apps 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 Cartas Romanticas de Amor's BU Score?▴
Cartas Romanticas de Amor has a BU Score of 57/100 (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.