# Crystal Diver vs Let

The clearest difference is update cadence: Crystal Diver at weekly against Let's monthly. Crystal Diver also leads on iOS requirement (12.0 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.

Crystal Diver ships an update weekly, Let monthly. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Crystal Diver | Let |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Size | 47 MB | 31 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [HiCold Supply Chain Information Technology Co., Ltd](https://appshunter.io/developer/1493380193) | [Sareuon Sum](https://appshunter.io/developer/1863860721) |

## What reviewers say

### Crystal Diver

[App page](https://appshunter.io/ios/app/crystal-diver/id1610500659)

**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 Crystal Diver free?

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

### Is Let free?

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

### Do Crystal Diver or Let have ads?

Neither Crystal Diver nor Let shows ads.

### Which is updated more often, Crystal Diver or Let?

Crystal Diver ships an update weekly, and Let monthly. Most recently, Crystal Diver was updated on October 6, 2026 and Let on October 9, 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.*