# Climb Stairs! vs BlastKnock

The clearest difference is in-app purchases: BlastKnock at none against Climb Stairs!'s 3. Climb Stairs!'s advantage is iOS requirement (9.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Climb Stairs! sells 3 one-off in-app purchases. BlastKnock asks for nothing beyond the download.

## The numbers

| Metric | Climb Stairs! | BlastKnock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | — |
| Size | 67 MB | 88 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [强 施](https://appshunter.io/developer/1016361544) | [cignal.io](https://appshunter.io/developer/1896585435) |

## What reviewers say

### Climb Stairs!

[App page](https://appshunter.io/ios/app/climb-stairs/id1507396841)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy 2000 Diamonds | $0.99 | one-time |
| Remove Ads | $0.99 | one-time |
| Buy 500 Diamonds | $1.99 | one-time |


### BlastKnock

[App page](https://appshunter.io/ios/app/blastknock/id6768558959)

**In-app purchases:** none


## Frequently asked questions

### Is Climb Stairs! free?

Climb Stairs! is free to download, with in-app purchases available.

### Is BlastKnock free?

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

### Do Climb Stairs! or BlastKnock have ads?

Neither Climb Stairs! nor BlastKnock shows ads.

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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.*