# Seekop RK vs Checkmark

The clearest difference is update cadence: Checkmark at every 8 days against Seekop RK's every 6 weeks. Seekop RK's advantage is iOS requirement (12.0 vs 15.1). 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.

Seekop RK ships an update every 6 weeks, Checkmark every 8 days. The most recent releases landed on October 9, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Seekop RK | Checkmark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 8 days** |
| Size | 44 MB | 56 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [SICOP Consulting, S.A. de C.V.](https://appshunter.io/developer/506889460) | [Creative Power Digital](https://appshunter.io/developer/6791305376) |

## What reviewers say

### Seekop RK

[App page](https://appshunter.io/ios/app/seekop-rk/id1453413368)

**Features:** macOS Compatibility

**In-app purchases:** none


### Checkmark

[App page](https://appshunter.io/ios/app/checkmark/id1617885865)

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

**In-app purchases:** none


## Frequently asked questions

### Is Seekop RK free?

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

### Is Checkmark free?

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

### Do Seekop RK or Checkmark have ads?

Neither Seekop RK nor Checkmark shows ads.

### Which is updated more often, Seekop RK or Checkmark?

Seekop RK ships an update every 6 weeks, and Checkmark every 8 days. Most recently, Seekop RK was updated on October 9, 2026 and Checkmark on October 24, 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.*