Millisecond stopwatch & timer vs Redo Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Millisecond stopwatch & timer
This utility app offers both a stopwatch and a timer with millisecond precision. It includes smart presets, lap tracking, and customizable alerts. Ideal for precise timing in sports, studies, or experiments.
- Stopwatch and timer functionality
- Millisecond visualization
- Smart timer presets
- Lap/split tracking
- Dark mode
- Vibration/sound alerts
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[Key Features] - Dual features: Stopwatch + Timer - Millisecond visualization (00:00.00 format) - Smart timer presets (1min/5min/10min quick-set) - Lap/split tracking with comparative analysis - Dark mode & screen-always-on option - Vibration/sound alerts [Usecase] - Sports training & lap timing - Scientific experiments & lab use - Cooking/baking precision - Productivity time blocking
Redo Calculator
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Redo Calculator lets you calculate confidently without worrying about mistakes. With full Undo and Redo support, you can easily correct inputs, and the screen-on feature ensures the display never turns off while calculating. Features - Undo & Redo for easy correction - Prevents screen from turning off during use - Clean, minimal design - Keeps your recent calculation history Simple, reliable, and focused — Redo Calculator helps you calculate without interruption.
Screenshots
Verdict
The clearest difference is ads: Redo Calculator at none against Millisecond stopwatch & timer's shown. Redo Calculator also leads on update cadence (every 2 months vs every 4 months) and iOS requirement (13.0 vs 15.0). On price, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Millisecond stopwatch & timer ships an update every 4 months, Redo Calculator every 2 months. The most recent releases landed on October 21, 2026 and October 7, 2026 respectively.
| Parameter | Millisecond stopwatch & timer | Redo Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 4 months | Every 2 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 38 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Seulki Eom | Seongmin Yim |
In-app purchases
Millisecond stopwatch & timer
No in-app purchases
Redo Calculator
No in-app purchases
Questions
Is Millisecond stopwatch & timer free?
Is Redo Calculator free?
Do Millisecond stopwatch & timer or Redo Calculator have ads?
Which is updated more often, Millisecond stopwatch & timer or Redo Calculator?
Other comparisons
