Clock vs Timestu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Clock
This app helps you leave work on time by notifying you of the remaining time until your scheduled finish. It continues to send alerts even when running in the background and supports Apple Watch and widgets.
- Work finish time notifications
- Background operation
- Apple Watch support
- Widget support
- Customizable notification intervals
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Clock-Out Timer keeps one number in front of you: how much of today is left. Working late usually isn't a willpower problem. It's a time-awareness problem. When the time remaining is simply there, in view, deciding to stop gets a lot easier. ■ Visible without opening it At your start time, the time left and a progress bar appear on the Lock Screen and in the Dynamic Island. There are widgets, Lock Screen widgets, Apple Watch complications and a StandBy desk clock too. You never have to open the app. ■ It changes colour as you get close Under an hour to go, it turns orange. At your end time, it says so. Past it, it turns red and counts your overtime, so you always know how far over you are. ■ End your day with one tap "Done for Today" stops today's notifications and the countdown. Marking the end is often what makes the end happen. Staying a bit longer? Extend by 15, 30 or 60 minutes. Stepping away? Start a break. All of it works from the Lock Screen. ■ Build a streak of finishing on time Days you leave on time are recorded automatically and counted as a streak, with days off skipped. It's one more reason to call it a day. ■ Notifications, at your volume Choose Off, Minimal, Standard or Custom. Beyond start and end reminders, you can set your own checkpoints through the day and a countdown before you finish. ■ Quiet on your days off Pick which weekdays you're off and the app stays silent — no notifications, no Live Activity. Finish on time a little more often.
Timestu
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A professional time-study stopwatch built for accurate work measurement, productivity analysis, and industrial engineering. This app lets you track real processes with category-based timing, instant task switching, and structured Excel exports. Designed for time studies, factory observations, and workflow analysis. Track Real Work Accurately: - Create custom stopwatches - Add categories and sub-categories - One-tap switching between tasks - Auto-lap every time the category changes - Capture setup times, process times, and detailed work elements Analyze Your Time Studies: - View total times by category - Drill into sub-categories - See every lap in chronological order - Understand task distribution and workflow patterns Export for Further Analysis: - Export full stopwatch history to a structured Excel file - Ideal for spreadsheets, Power BI, or statistical analysis - Designed for continuous improvement workflows Built for Industrial Engineering: Perfect for: - Time & motion studies - Factory and production analysis - Lean / Kaizen work - Productivity tracking - Operations optimization - Work measurement - Field data collection Why This Stopwatch Is Different: - No clutter - Fast and reliable in real field conditions - Category-driven timing - Supports detailed breakdowns for complex processes - Produces Excel output ready for analysis
Screenshots
Verdict
The clearest difference is in-app purchases: Clock at none against Timestu's 2. On price, ads, device support and iOS requirement 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. Timestu sells 2 one-off in-app purchases. Clock asks for nothing beyond the download.
| Parameter | Clock | Timestu |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 4 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | icot | MUHAMMET SADIK DALKIRAN |
In-app purchases
Clock
No in-app purchases
Timestu
- Unlock Icon Customization$1.99
- Export to Excel$2.99









