DayCalc Pro - Note Calculator
68
Quality Score
Solid
DayCalc Pro - Note Calculator
Medium confidence
✍️ bumetric analysis
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DayCalc Pro - Note Calculator is an iOS app from 良峰 侯 in the Utilities category, currently rated 4.6★ across 177 ratings. Initial signal reads as mixed reviews: supporters praise core features while critics cite stability and value gaps.
Quality Score is 68: 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.
📊 Performance Tracking LIVE
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Rating
—
Reviews
—
Forecast Revenue / mo
—
Snapshots tracked
0
since first record
Range:
💰 Forecast Revenue / mo
MODELRevenue 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 7 of 7 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
| Paid app ($0.00)METRIC | +$2,800 | |
| Excellent rating (4.6★)METRIC | +$2,200 | |
| excellent appREVIEW | +$1,500 | |
| Mature app (12y old)METRIC | +$1,500 | |
| Multilingual (15 languages)METRIC | +$1,500 | |
| highly recommendREVIEW | +$1,400 | |
| Early-stage install base (177 ratings)METRIC | +$400 |
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)
📈 Reviews Growth
LIVECumulative review count from first BU snapshot. Each point = a tracked update.
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🆕 What's New · v13.3
+ Refinement of functions
Profile & Insights
Everything we know — and don't — about this app and its company.
Identification
- App name
- DayCalc Pro - Note Calculator
- Developer
- 良峰 侯
- Bundle ID
- com.hcsystem.calculator
- App Store URL
- Open in App Store
- Category
- Utilities
- Content rating
- 4+
- Languages
- DA, NL, EN, FR, DE, HU, IT, JA, KO, PL, PT, RU, ZH, ES, ZH
Company
- Website
- Not found
- Tagline
- Room HC
- 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
- $16.7K/mo
- Top-grossing rank
- Outside top 100 in US Utilities
- 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
- Socials
- facebook facebook.com/login/?next=https%3A%2F%… · twitter twitter.com/iDaycost
- Not found
- Phone
- Not found
- Contact page
- daycost.net/contact.html
- About page
- Not found
📈Ratings growth177 ratings+4325% lifetimeShow 3-year history estimate ▾
Tracked (58 weeks) Pre-tracking estimate (36 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
💰Pricing History$0.00 → $0.99 (+0%)
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
DayCalc is an easy to use, beautifully packaged calculator and Unit Converter, includes standard, scientific and fractions calculator, best calculator for your iPad, iPhone and Apple Watch!
Calculator:
- Live voice calculator
- Add notes to history of your calculations, and you can share
- Choose between a basic calculator or scientific calculator with more than 30 scientific operations
- Use both calculators in portrait or landscape mode (both iPhone and iPad), and split screen support for iPad… View full description on the official store →
Calculator:
- Live voice calculator
- Add notes to history of your calculations, and you can share
- Choose between a basic calculator or scientific calculator with more than 30 scientific operations
- Use both calculators in portrait or landscape mode (both iPhone and iPad), and split screen support for iPad… View full description on the official store →
App Specs
🔐 Own this app? Claim & verify MRR →💾 99 MB🔞 4+📱 iOS 13.0+🔖 v13.3🔄 updated 0d ago🌐 DA, NL, EN, FR, DE +10📂 Utilities💰 Paid
📅
What Worked™ · Development Pipeline
8 EVENTS TRACKEDDetected 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 →
2026-05
⭐
Rating ↑ 4.10 → 4.64 (improved 0.54★)
2026-05
📈
Crossed 50 ratings — social-proof flywheel kicking in
2026-05
💲
Went paid — introduced $0.99 price point
2026-03
⭐
Rating ↓ 4.54 → 4.10 (dropped 0.44★)
2024-03
📈
Crossed 50 ratings — social-proof flywheel kicking in
2018-06
📈
Crossed 10 ratings — social-proof flywheel kicking in
2013-07
⭐
Rating ↓ 5.00 → 4.67 (dropped 0.33★)
2013-06
🚀
First tracked snapshot — initial data captured
🔔
Track this app’s revenue
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ONE-TIME · BUILD
💰 Estimated build cost
$60K
↳ What it cost to build · not monthly revenue
Likely range $45K – $80K
$25K · MVP floor
$100K · indie scale
$500K+ · studio build
📈
Pays back in ~4 months 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 |
| 📦 Asset bundle (99 MB) | +$19K |
| ⚙ Utilities complexity ×0.85 | $-10496 |
Total estimate
$60K
ONE-TIME · EXIT VALUE
💵 Estimated acquisition value
$225K
↳ What it would sell for · not monthly revenue
Marketplace range $175K – $300K · 13× MRR multiple
💸
~3.8× return on build cost
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 |
| ⭐ ★ rating ≥ 4.4 (solid) | +8% |
| 🏷 Utilities category multiple | -10% |
| ⭐ Small user base (<1K ratings) | -8% |
Final multiple
13× MRR
👥 Estimated audience size
35K
Lifetime downloads (US-equivalent)
Monthly active
7.0K
Daily active
1.4K
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
| 📲 Utilities engagement | ~200 installs / rating |
| 🔁 Utilities D30 retention | 20% |
| 📍 DAU / MAU stickiness | 0.20 |
DAU / MAU
20% sticky
📝 Description
95
BU Score · Transcendent
Full revenue analysis
Read the article-style breakdown for DayCalc Pro - Note Calculator: category rank, percentile, growth signal, comparable apps, and how the forecast is calibrated against verified-MRR anchors in this niche.
More by 良峰 侯
View all →📦 Portfolio summaryINDIE studio
4apps·$33K/mocombined
✓ Diversified — top app contributes 49%; risk spread across portfolio
Similar apps in Utilities
About this analysis
Why medium confidence: 177 ratings · no founder-verified revenue (model estimate only).
❓ Frequently Asked Questions
4 answers · auto-generated from this app's public dataHow much does DayCalc Pro - Note Calculator make per month?▴
Based on our ML-calibrated revenue forecast, DayCalc Pro - Note Calculator earns approximately $16K/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.
What apps are like DayCalc Pro - Note Calculator?▴
Browse the full Utilities 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.
Who makes DayCalc Pro - Note Calculator?▴
DayCalc Pro - Note Calculator is published by 良峰 侯 on the Apple App 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 DayCalc Pro - Note Calculator's BU Score?▴
DayCalc Pro - Note Calculator has a BU Score of 68/100 (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.