# 見やすいストップウォッチ vs Race Trajectory

The clearest difference is iOS requirement: 見やすいストップウォッチ at 15.0 against Race Trajectory's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 見やすいストップウォッチ sells 1 one-off in-app purchase and Race Trajectory sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 見やすいストップウォッチ | Race Trajectory |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | Monthly |
| Size | 23 MB | 20 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [HIROKI HAYASHI](https://appshunter.io/developer/1602465862) | [Tsuyoshi Matsuoka](https://appshunter.io/developer/1697141668) |

## What reviewers say

### 見やすいストップウォッチ

[App page](https://appshunter.io/ios/app/biglaptimer/id1605442837)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示と機能制限の解除 | $0.99 | one-time |


### Race Trajectory

[App page](https://appshunter.io/ios/app/race-trajectory/id6747305681)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $1.99 | per month |


## Frequently asked questions

### Is 見やすいストップウォッチ free?

見やすいストップウォッチ is free to download, with in-app purchases available.

### Is Race Trajectory free?

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

### Do 見やすいストップウォッチ or Race Trajectory have ads?

Both 見やすいストップウォッチ and Race Trajectory show ads.

### Which is updated more often, 見やすいストップウォッチ or Race Trajectory?

見やすいストップウォッチ ships an update monthly, and Race Trajectory monthly. Most recently, 見やすいストップウォッチ was updated on September 18, 2026 and Race Trajectory on September 17, 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.*