# Time Tracker & Stopwatch vs Letter Explainer

The clearest difference is ads: Letter Explainer at none against Time Tracker & Stopwatch's shown. Letter Explainer also leads on update cadence (every 5 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Time Tracker & Stopwatch sells 4 in-app purchases, starting at $3.99 per 6 months and Letter Explainer sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Time Tracker & Stopwatch ships an update every 3 weeks, Letter Explainer every 5 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Time Tracker & Stopwatch | Letter Explainer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 28 MB | 22 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jakub Flisinski](https://appshunter.io/developer/1454510462) | [Armen Ter-Oganezov](https://appshunter.io/developer/1723150483) |

## What reviewers say

### Time Tracker & Stopwatch

[App page](https://appshunter.io/ios/app/time-tracker-and-stopwatch/id6808549499)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PRO version | $3.99 | per 6 months |
| PRO version | $6.99 | per year |
| No ads | $5.99 | one-time |
| PRO version | $17.99 | one-time |


### Letter Explainer

[App page](https://appshunter.io/ios/app/letter-explainer-postklar/id6816644992)

**Features:** Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Postklar Pro Monthly | $3.99 | per month |
| Postklar Pro Yearly | $24.99 | per year |
| 5 Scans | $2.99 | one-time |


## Frequently asked questions

### Is Time Tracker & Stopwatch free?

Time Tracker & Stopwatch is free to download, with in-app purchases available.

### Is Letter Explainer free?

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

### Do Time Tracker & Stopwatch or Letter Explainer have ads?

Time Tracker & Stopwatch shows ads; Letter Explainer does not.

### Which is updated more often, Time Tracker & Stopwatch or Letter Explainer?

Time Tracker & Stopwatch ships an update every 3 weeks, and Letter Explainer every 5 days. Most recently, Time Tracker & Stopwatch was updated on October 31, 2026 and Letter Explainer on November 6, 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.*