Rafter Help

65
Rafter Help is an iOS app from Armchair Engineering in the Utilities category, currently rated 4.8★ across 307 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 65: Solid (established niche player). For a Utilities 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.
- 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 |
| ⚙ Utilities complexity ×0.85 | $-7575 |
| ⚙ 11.2y maintenance × ~1-person team | +$67K |
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.
| 📺 Ad-supported base | 15× MRR |
| 📅 11.2y proven track record | +20% |
| ⭐ ★ rating ≥ 4.7 (premium) | +15% |
| 🏷 Utilities category multiple | -10% |
| ⭐ Small user base (<1K ratings) | -8% |
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.
| 📲 Utilities engagement | ~200 installs / rating |
| 📅 11.2y of rating accumulation | -30% |
| 🔁 Utilities D30 retention | 20% |
| 📍 DAU / MAU stickiness | 0.20 |
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.
| 📦 App bundle size | 6 MB |
| 🏷 Category context | Utilities |
| 📦 Compact iOS bundle | → Native Swift / UIKit (pre-2020 era) |
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.
| 📅 6y+ since last update | Likely abandoned |
| 👥 Small user base (307 ratings) + 11.2y old | +10% (solo-project pattern) |
| • 11y old + 1y+ no update | +5% (API deprecation drift) |
How we forecast this revenue
MEDIUM CONFIDENCEBU Investment Matrix
Below median · 49/100MID TIERunderperforming peers- 💰 Revenue: Modest — $3K - $7K/mo · MID tier · medium confidence, trajectory unclear.
- ⭐ Quality: 4.8★ across 307 reviews — solid.
- 📍 Market: Not yet charting in any of the 9 monitored markets.
- 📈 Growth: ⚠ last update 2511d ago — possibly dormant.
- ⚠️ Risk: Moderate — dormant (2511d since update).
💰 Forecast Revenue / mo
MODEL| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.8★)METRIC | +$2,200 | |
| Mature app (11y old)METRIC | +$1,500 | |
| Early-stage install base (307 ratings)METRIC | +$400 | |
| Single-language (English only)METRIC | −$400 |
📈 Reviews Growth
LIVE⭐ Rating Trend
LIVE🆕 What's New · v1.5.2
Profile & Insights
Identification
- App name
- Rafter Help
- Developer
- Armchair Engineering
- Bundle ID
- Not found
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- EN
Company
- Website
- Not found
- 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
- $5.2K/mo
- Top-grossing rank
- Not found
- All-time revenue
- Not found
- Pricing
- Not found
Founder
Funding
Press & Links
Contacts & Socials
📈Ratings growth213 ratings+21200% lifetimeShow 3-year history estimate ▾
📝 About this app
Quickly find roof pitch, rafter lengths and ridge height for gable roofs, based on room and ridge width.
Or calculate length values with more control from the Advanced tab.
Features Include:
- Accurately solve rafter equations
- Enter pitch steepness in radians, decimal degrees or degrees, minutes, seconds (DMS) or rise/run (e.g. 8/12)
- Enter lengths in mm, cm, inches or feet
- Select your preferred number of decimal places
What Worked™ · Development Pipeline
9 EVENTS TRACKEDMulti-Country Performance
Available in 9 of 9 monitored markets| Market | Rating | Reviews | Current version |
|---|---|---|---|
| 🇦🇺 AU | 4.51316★ | 76 | 4.51316★ this version |
| 🇧🇷 BR | 0★ | 0 | — |
| 🇨🇦 CA | 4.05★ | 20 | 4.05★ this version |
| 🇩🇪 DE | 3★ | 1 | 3★ this version |
| 🇫🇷 FR | 5★ | 1 | 5★ this version |
| 🇬🇧 GB | 4.75549★ | 319 | 4.75549★ this version |
| 🇮🇳 IN | 3★ | 1 | 3★ this version |
| 🇯🇵 JP | 0★ | 0 | — |
| 🇺🇸 US | 4.50704★ | 213 | 4.50704★ this version |
Track this app’s revenue
FREE📝 Description
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Why medium confidence: 307 ratings · no founder-verified revenue (model estimate only).



