# MillisecondTimer vs 로또시그널 AI

The clearest difference is in-app purchases: 로또시그널 AI at none against MillisecondTimer's 3. 로또시그널 AI also leads on iOS requirement (13.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MillisecondTimer sells 3 in-app purchases, starting at $1.00 per month. 로또시그널 AI asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 2, 2026.

## The numbers

| Metric | MillisecondTimer | 로또시그널 AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/millisecondtimer/id6462732415/reviews)** | — |
| Number of ratings | **6** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 83 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [WONJI HA](https://appshunter.io/developer/1703308182) | [mkideabox Co. Ltd.](https://appshunter.io/developer/1790563640) |

## What reviewers say

### MillisecondTimer

[App page](https://appshunter.io/ios/app/millisecondtimer/id6462732415)

This app provides highly accurate timing tools, including a countdown timer, stopwatch, and clock, all with millisecond precision. It's designed for precise measurements in workouts, games, and everyday situations, offering background operation and seamless switching between apps.

**Highlights:** Millisecond precision timing, Countdown timer with custom intervals, Stopwatch for accurate interval recording, Real-time millisecond clock display, Background operation and notifications, Recent timers for quick reuse, Customizable 12/24 hour clock format

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MillisecondTimer Pro Month Plan | $1.00 | per month |
| MillisecondTimer Pro Annual Plan | $5.99 | per year |
| MillisecondTimer Pro Lifetime | $34.99 | one-time |


### 로또시그널 AI

[App page](https://appshunter.io/ios/app/ai/id6758536429)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MillisecondTimer free?

MillisecondTimer is free to download, with in-app purchases available.

### Is 로또시그널 AI free?

로또시그널 AI is free to download, with no in-app purchases.

### Do MillisecondTimer or 로또시그널 AI have ads?

Both MillisecondTimer and 로또시그널 AI show ads.

### Which is updated more often, MillisecondTimer or 로또시그널 AI?

MillisecondTimer ships an update every 3 weeks, and 로또시그널 AI every 3 weeks. Most recently, MillisecondTimer was updated on October 2, 2026 and 로또시그널 AI on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*