68
BU Score
Solid
DayCalc Pro - Note Calculator
✍️ BU Analytics Review
“
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/value gaps.
Our BU Score puts it at 68 — Solid (established niche player). For a Utilities app, that means established niche player.
Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.
creator
📊 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.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
May 24
Sep 24
Jan 25
Mar 25
Apr 25
Oct 25
Nov 25
Dec 25
⭐ Rating Trend
LIVEAverage rating evolution. Updates with each new review batch.
🗓️ Snapshot Timeline
HISTORYEach bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →💾 99 MB🔞 4+📱 iOS 13.0+🔖 v13.3🔄 updated 5d ago🌐 DA, NL, EN, FR, DE +10📂 Utilities💰 Paid🚀 Launched 2013 (12y old)
📝 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
- Auto adjust height of the history list, no matter how long the calculation process can be displayed in full
- Allows locking of calculation history, cannot be deleted and modified after locking
- Full watchOS 4 and later support
- Support iOS 9 and later spotlight search
- Support Dark Mode
Unit Converter:
- Over 600+ units in 20 categories.
- Allows you to add your own unit data, make your own unit converter that meets all your requirements.
- Support more than 150 kinds of currency, conversion exchange rate automatic updates
- The simplest way to create and use favorite lists.
- Add the constant value of your frequently used, it can easily and quickly reused.
- Flexible search feature that lets you quickly find what you want the unit and automatically saves your search history.
Basic functions:
- 50+ beautiful themes for you to choose
- View and edit a history of your calculations on the History Panel
- Multiple Button sounds, and button sound is mutable
URL schemes: HCDayCalcPro://
Download it now and feel of this calculator is how classic
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
- Auto adjust height of the history list, no matter how long the calculation process can be displayed in full
- Allows locking of calculation history, cannot be deleted and modified after locking
- Full watchOS 4 and later support
- Support iOS 9 and later spotlight search
- Support Dark Mode
Unit Converter:
- Over 600+ units in 20 categories.
- Allows you to add your own unit data, make your own unit converter that meets all your requirements.
- Support more than 150 kinds of currency, conversion exchange rate automatic updates
- The simplest way to create and use favorite lists.
- Add the constant value of your frequently used, it can easily and quickly reused.
- Flexible search feature that lets you quickly find what you want the unit and automatically saves your search history.
Basic functions:
- 50+ beautiful themes for you to choose
- View and edit a history of your calculations on the History Panel
- Multiple Button sounds, and button sound is mutable
URL schemes: HCDayCalcPro://
Download it now and feel of this calculator is how classic
🆕 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
- www.daycost.net
- 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
- Name
- Not found
- X / Twitter
- https://twitter.com/iDaycost
- Not found
- GitHub
- Not found
- X followers
- Not found
- Public statements
- Not found
Funding
- Total raised
- Not found
- Last round
- Not found
- Investors
- Not found
- Crunchbase
- Not found
- AngelList
- Not found
Press & Links
- Articles found
- Not found
- Listed on
- Not found
- Blog
- Not found
- Press / News
- Not found
Contacts & Socials
- Socials
- facebook · twitter
- Not found
- Phone
- Not found
- Contact page
- https://www.daycost.net/contact.html
- About page
- Not found
📈Ratings growth177 ratings+5800% 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.
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.
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