ReadTrace vs DateMap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ReadTrace
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ReadTrace is a tiny reading companion that quietly remembers what you read across apps. Any time you find a good article, just share it to ReadTrace. The link, title, source app and time are saved on your device, so you can always come back to it later. No accounts. No cloud. No tracking. Everything stays on your phone. Key features: 1. Save articles from any app via the iOS Share Sheet 2. See a clear timeline of everything you’ve saved 3. Remember where you found it with source app and time 4. Tap to open the original link again 5. All data is stored locally on your device Perfect for anyone who reads a lot across apps and wants a simple way to remember and revisit good articles — without yet another account or inbox to manage.
DateMap
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DateMap puts the whole month on your Home Screen — every day's events at a glance, with multi-day plans on one continuous bar, instead of only the next appointment. When the system language is Chinese, the Home Screen icon name is DateMap. HOME SCREEN WIDGETS • DateMap(month calendar): small shows today, medium shows the week, large shows the whole month • 倒数1 / 倒数2 / 倒数3: three countdown styles — ring, triple cells, and progress bars • 组合1 (Combo 1): yesterday through the day after tomorrow, plus one countdown • 组合2 (Combo 2): the week at a glance with a countdown progress bar • Lock Screen 月历 (month): the current month on your Lock Screen with event dots Widget text stays in Chinese by design; the app itself works fully in English. DATEMAP PRO — ONE-TIME PURCHASE Unlocks the Combo 1 & Combo 2 widgets and the Lock Screen month calendar, countdown photo backgrounds and custom colors, monthly and yearly lunar countdowns, and lunar event repeats. If you bought the old Combo widget, you already have Pro. TWO-WAY CALENDAR SYNC Read and edit your system Calendar events directly. Changes made here sync back to Calendar, and changes in Calendar show up here. MADE FOR THE CHINESE CALENDAR The month grid shows lunar dates, traditional festivals, solar terms, and public holiday rest/work days. Weeks can start on Sunday or Monday. GET THINGS DONE • Create events with natural language • Repeats: daily, weekly, weekdays, and lunar (lunar monthly is Pro) • Place search and current location • Local reminders and countdown day-before reminders • Countdown share cards: save or share as an image • Color intensity: adjust event color depth in the app and widgets • Search events, places, notes, and countdowns • Undo and trash recovery after deleting • Siri and Shortcuts PRIVACY FIRST No account, no ads. Calendar and countdown data never leaves your device — there is no developer server. Calendar, notification, and location permissions are used only for their features; location is requested only when you tap. DateMap works on iPhone. The app interface supports 简体中文, 繁體中文, and English.
Screenshots
Verdict
The clearest difference is in-app purchases: ReadTrace at none against DateMap's 2. DateMap's advantage is iOS requirement (17.0 vs 26.1). On price, 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
Both are free to download. DateMap sells 2 one-off in-app purchases. ReadTrace asks for nothing beyond the download.
| Parameter | ReadTrace | DateMap |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 2 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.1 | 17.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | 龙 沙 | 涛 王 |
In-app purchases
ReadTrace
No in-app purchases
DateMap
- 组合组件$0.99
- DateMap Pro$1.99









