Days Matter Air vs Build
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Days Matter Air
Track important upcoming and past events with a visual countdown. Supports a vast date range, custom categories, and widgets. Never miss a birthday, anniversary, or bill payment again.
- Countdown/count up to 10,000 years
- Support for various widgets
- Customizable event categories
- Lunar calendar support
- Pin important dates to the top
- Passcode protection
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Days Matter is an app to countdown your important days, such as: How many days away from your Family’s birthday? When to pay your credit card? How many days are there from your payday? How long has it been since the baby was born? = Feature = ·10,000 Years Support - From January 1, The Year One AD to December 31, 9999 AD, count up/down. · Support Various Widgets · Today in History · Custom Categories - 3 default categories: Anniversary, Work, Life, support custom categories · Lunar Calendar Support: From 1901 AD to 2099 AD · Pin top for important dates, arranged in chronological order · Custom event background · Advanced feature: Passcode Protection Please feel free to provide problem reports, feature ideas and general comments. Proudly by Clover
Build
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• 工地工程師的必備工具，一指完成查驗與記錄！ • 從紙本走向數位，工地管理升級進化。 • 即時拍照、進度上傳、表單匯出，一氣呵成！
Screenshots
Verdict
The clearest difference is price: Days Matter Air at Free against Build's $7.99. Days Matter Air also leads on update cadence (every 2 months vs every 10 months) and iOS requirement (12.0 vs 26.0). Build's advantage is in-app purchases (none vs 4). On ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Days Matter Air is free to download; Build costs $7.99 up front. Days Matter Air sells 4 one-off in-app purchases. Build asks for nothing beyond the download.
Days Matter Air ships an update every 2 months, Build every 10 months. The most recent releases landed on November 11, 2026 and October 30, 2026 respectively.
| Parameter | Days Matter Air | Build |
|---|---|---|
| Price | Free — better | $7.99 |
| Rating | 4.7 (339 ratings) — better | — |
| Positive reviews | 84.8% of reviews | — |
| Number of ratings | 339 — better | — |
| Update frequency | Every 2 months — better | Every 10 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 161 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | iDaily Corp. | Hao Da-Wei |
Bugs and requests
Days Matter Air
Reported bugs
3 issues- Occasional app crashes
- Widget disappearing from Notification Center
- Incompatibility with newer iOS versions
Requested features
5 requests- Add note/description field for events
- Provide more language options
- Improve Apple Watch app functionality
- Implement backup and restore options
- Add sorting/filtering for event lists
Build
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Days Matter Air
- Days Matter Air Pro$1.99
- 咖啡$2.99
- 银币$5.99
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- 金币$14.99
Build
No in-app purchases
