100cm Ruler vs TaskWork
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
100cm Ruler
This app provides a digital ruler for measuring the length and diameter of small objects directly on your device. It features a millimeter scale and allows for easy sliding to measure.
- Digital ruler functionality
- Millimeter scale
- Diameter measurement
- Screen sliding for measurement
- Ad removal option
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Plotting scale is useful to measure the length of small articles and insects. Squared in millimeters on the lower left, thus the diameter can be measured roughly. Hold the screen and slide your iPhone to the right. https://www.youtube.com/watch?v=kxU9xi88IiY Ads can be removed on "Info page".
TaskWork
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TaskWork brings your task board, calendar, habit tracking, journal and focus timer into a single personal planner. It works fully offline and syncs across your devices whenever you are connected. BOARD AND TASKS • Drag and drop kanban board with multiple boards • Subtasks, labels, priorities and recurring tasks • Today, Inbox and Completed views • Bulk paste: turn a copied list into tasks in one step CALENDAR • Month, week, day and agenda views • Schedule tasks by dragging them onto the calendar • Import from Google Calendar and send your events to it (only with your consent) FOCUS • Dial-based focus timer, linked to a task or free • Forgot to start? Begin the session a few minutes back • Sessions are written to your calendar and journal automatically • Live countdown on the Lock Screen and Dynamic Island (iPhone), focus widget HABITS AND JOURNAL • Daily rituals with streaks and a heatmap • End-of-day reflection: a quick note first, mood and energy; questions are optional • Monthly history and search SHARED BOARDS AND FRIENDS • Share a board by username or an invite link and plan together • Compare weekly focus time with friends (only the total is visible) • Report and block from inside the app EXPORT AND BACKUP • Export tasks as PDF, CSV or Markdown, archived cards included • Keep your journal archive as a PDF • Import and export your calendar as ICS files • Your data is never locked in; take it with you anytime BUILT FOR MOBILE • Home screen widgets: Today, Favorites and Focus • Reminders that arrive even when the app is closed • Create a task from the share sheet • Home screen shortcuts YOUR DATA IS YOURS • Use it as a guest, without an account • Data is written to your device first • Delete your account and all data permanently from inside the app • No ads, no trackers, no third-party analytics Light, dark and OLED themes; Turkish and English. Continue on the web with the same account.
Screenshots
Verdict
The clearest difference is in-app purchases: TaskWork at none against 100cm Ruler's 1. TaskWork also leads on update cadence (every 3 days vs every 3 months). 100cm Ruler's advantage is iOS requirement (12.0 vs 15.0). 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. 100cm Ruler sells 1 one-off in-app purchase. TaskWork asks for nothing beyond the download.
100cm Ruler ships an update every 3 months, TaskWork every 3 days. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | 100cm Ruler | TaskWork |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 45.1% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 62 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | ZOOMO Inc. | MEHMET FATIH DOGAN |
In-app purchases
100cm Ruler
- Remove ADS$1.99
TaskWork
No in-app purchases









