# Chainblade vs KEEPYBOO

The clearest difference is in-app purchases: Chainblade at none against KEEPYBOO's 10. Chainblade also leads on ads (none vs shown). KEEPYBOO's advantage is update cadence (every 2 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. KEEPYBOO sells 10 one-off in-app purchases. Chainblade asks for nothing beyond the download.

Chainblade ships an update every 3 weeks, KEEPYBOO every 2 days. The most recent releases landed on October 12, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Chainblade | KEEPYBOO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Size | 29 MB | 99 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [Seiya.k](https://appshunter.io/developer/383021944) | [株式会社ビット](https://appshunter.io/developer/6813510089) |

## What reviewers say

### Chainblade

[App page](https://appshunter.io/ios/app/chainblade/id6780426507)

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

**In-app purchases:** none


### KEEPYBOO

[App page](https://appshunter.io/ios/app/keepyboo-ghost-logic-puzzle/id6813510087)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theme: Halloween | $0.99 | one-time |
| Theme: Toy Box | $0.99 | one-time |
| Theme: Comic Hero | $0.99 | one-time |
| Theme: Pixel Castle | $0.99 | one-time |
| Sound: Koto Strings | $0.99 | one-time |
| Sound: Water Drops | $0.99 | one-time |
| Sound: 80s Ghost | $0.99 | one-time |
| ULTIMATE Pack | $1.99 | one-time |
| EXTREME Pack | $3.99 | one-time |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Chainblade free?

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

### Is KEEPYBOO free?

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

### Do Chainblade or KEEPYBOO have ads?

KEEPYBOO shows ads; Chainblade does not.

### Which is updated more often, Chainblade or KEEPYBOO?

Chainblade ships an update every 3 weeks, and KEEPYBOO every 2 days. Most recently, Chainblade was updated on October 12, 2026 and KEEPYBOO on October 13, 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.*