# API vs Let

The clearest difference is update cadence: API at every 6 days against Let's monthly. API also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

API ships an update every 6 days, Let monthly. The most recent releases landed on June 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | API | Let |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/api-client-testing/id6740306610/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Monthly |
| Monetization | Free | — |
| Size | 25 MB | 31 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Hoang Son Dinh](https://appshunter.io/developer/1560967856) | [Sareuon Sum](https://appshunter.io/developer/1863860721) |

## What reviewers say

### API

[App page](https://appshunter.io/ios/app/api-client-testing/id6740306610)

Send and analyze HTTP/HTTPS requests directly from your mobile device. Save requests to collections for easy reuse and view detailed response information, including headers and round trip time. Customize connection timeout settings for efficient testing.

**Highlights:** Send HTTP/HTTPS requests, Analyze REST API responses, Request history, Save requests to collections, Display response headers and code, Customize connection timeout

**Features:** macOS Compatibility

**In-app purchases:** none


### Let

[App page](https://appshunter.io/ios/app/let-plan-it/id6756946893)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is API free?

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

### Is Let free?

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

### Do API or Let have ads?

Neither API nor Let shows ads.

### Which is updated more often, API or Let?

API ships an update every 6 days, and Let monthly. Most recently, API was updated on June 7, 2026 and Let on September 22, 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.*