# Zone SB vs Proofit

The clearest difference is in-app purchases: Zone SB at none against Proofit's 4. Zone SB also leads on iOS requirement (12.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Proofit sells 4 one-off in-app purchases. Zone SB asks for nothing beyond the download.

Zone SB ships an update weekly, Proofit every 5 days. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Zone SB | Proofit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 193 MB | 54 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Studio Bizz Inc](https://appshunter.io/developer/1759976636) | [Qore Games](https://appshunter.io/developer/1876341215) |

## What reviewers say

### Zone SB

[App page](https://appshunter.io/ios/app/zone-sb/id6587573263)

**Features:** macOS Compatibility

**In-app purchases:** none


### Proofit

[App page](https://appshunter.io/ios/app/proofit-sport-challenges/id6759008722)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 streak protection | $0.99 | one-time |
| Rest coin | $1.99 | one-time |
| 3 streak protections | $1.99 | one-time |
| 5 streak protections | $3.99 | one-time |


## Frequently asked questions

### Is Zone SB free?

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

### Is Proofit free?

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

### Do Zone SB or Proofit have ads?

Neither Zone SB nor Proofit shows ads.

### Which is updated more often, Zone SB or Proofit?

Zone SB ships an update weekly, and Proofit every 5 days. Most recently, Zone SB was updated on October 25, 2026 and Proofit on October 31, 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.*