# Springloop vs Sudoblock

The clearest difference is in-app purchases: Springloop at none against Sudoblock's 1. Springloop also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.6). Sudoblock's advantage is update cadence (every 5 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Sudoblock sells 1 one-off in-app purchase. Springloop asks for nothing beyond the download.

Springloop ships an update every 3 weeks, Sudoblock every 5 days. The most recent releases landed on September 18, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Springloop | Sudoblock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Size | 988 MB | 193 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Springlab Learning B.V.](https://appshunter.io/developer/1613530451) | [Hersey Social Ltd](https://appshunter.io/developer/1736559066) |

## What reviewers say

### Springloop

[App page](https://appshunter.io/ios/app/springloop/id1613530449)

**Features:** Vision Pro support

**In-app purchases:** none


### Sudoblock

[App page](https://appshunter.io/ios/app/sudoblock/id6776730650)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Springloop free?

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

### Is Sudoblock free?

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

### Do Springloop or Sudoblock have ads?

Sudoblock shows ads; Springloop does not.

### Which is updated more often, Springloop or Sudoblock?

Springloop ships an update every 3 weeks, and Sudoblock every 5 days. Most recently, Springloop was updated on September 18, 2026 and Sudoblock on September 17, 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.*