# Watchtower vs Math Block Blast

The clearest difference is ads: Math Block Blast at none against Watchtower's shown. Math Block Blast also leads on update cadence (every 5 days vs every 13 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

Watchtower ships an update every 13 months, Math Block Blast every 5 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | Watchtower | Math Block Blast |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 13 months | **Every 5 days** |
| Size | 119 MB | 23 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Beijing Ningdom Technology Co., Ltd.](https://appshunter.io/developer/434217018) | [OUPS SERVICES FOR WEB-DESIGN](https://appshunter.io/developer/1680165311) |

## What reviewers say

### Watchtower

[App page](https://appshunter.io/ios/app/watchtower-spot-and-snipe/id6738615231)

**In-app purchases:** none


### Math Block Blast

[App page](https://appshunter.io/ios/app/math-block-blast/id6759151886)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Watchtower free?

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

### Is Math Block Blast free?

Math Block Blast is free to download, with no in-app purchases.

### Do Watchtower or Math Block Blast have ads?

Watchtower shows ads; Math Block Blast does not.

### Which is updated more often, Watchtower or Math Block Blast?

Watchtower ships an update every 13 months, and Math Block Blast every 5 days. Most recently, Watchtower was updated on October 25, 2026 and Math Block Blast on October 25, 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.*