56
Curso de ortografia español
Curso de ortografia español is an Android app from RRT Developers Apps in the Education category, currently rated 4.3★ across 353 ratings. Initial signal reads as largely positive sentiment, users highlighting consistency and feature depth.
Quality Score is 56: 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.
Free AI audit of this app’s store listing
- Title & subtitle keyword fit
- Description hook & conversion structure
- Screenshots, ratings, reviews strategy
📊 Performance Tracking LIVE
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.
| 🧱MVP baseline (design + 1-store ship) | +$28K |
| 📱5 unique screens × $4.5K | +$22K |
| ⚙Education complexity ×1.20 | +$10K |
| 🌐Cross-platform reach (iOS + Android) | +$33K |
| ⚙7.7y maintenance × ~1-person team | +$46K |
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.
| 📲Education engagement | ~85 installs / rating |
| 📅7.7y of rating accumulation | -30% |
| 🔁Education D30 retention | 18% |
| 📍DAU / MAU stickiness | 0.30 |
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.
| 🏷Category context | Education |
| 📦Compact Android bundle | → Native Kotlin |
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.
| 📅9 months since last update | Concerning gap |
| 👥Small user base (353 ratings) + 7.7y old | +10% (solo-project pattern) |
How we forecast this revenue
MEDIUM CONFIDENCEBU Investment Matrix
Below median · 47/100MID TIERunderperforming peers- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.33★ across 353 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: last update 291d ago — slow cadence.
- ⚠️ Risk: Low — no material risk signals detected.
💰 Forecast Revenue / mo
MODEL| Good rating (4.3★)METRIC | +$800 | |
| Established app (7y old)METRIC | +$800 | |
| Ad-supported / freemiumMETRIC | +$600 | |
| Early-stage install base (353 ratings)METRIC | +$400 |
📈 Reviews Growth
LIVE⭐ Rating Trend
LIVE📝 About this app
* Spelling rules
* Use of letters B, V, C, Z, S, X, R, RR
* Spelling accents
* Accentuation: sharp words, flat words, esdrújulas, sobresdrújulas, hiatus, diphthongs and triphthongs
* Uppercase: proper nouns, cities and streets, geographic names
* Scoring rules
* Syntax: the subject, the predicate, types of complements
* Sentence classes
* Synonyms, antonyms and homonyms.… View full description on the official store →
Track this app’s revenue
FREEProfile & Insights
Identification
- App name
- Curso de ortografia español
- Developer
- RRT Developers Apps
- Bundle ID
- com.rrtdevelopers.cursodeortografiaespanol
- App Store URL
- Open in App Store
- Category
- Education
- 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
- Verified revenue / mo
- Not found
- AI revenue estimate / mo
- Not found
- AI annual estimate
- Not found
- ML model estimate / mo
- $307/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- Not found
