# St John's DSG vs POOL VISION

The clearest difference is iOS requirement: St John's DSG at 10.0 against POOL VISION's 12.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

St John's DSG ships an update every 10 months, POOL VISION every 9 months. The most recent releases landed on October 25, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | St John's DSG | POOL VISION |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 9 months** |
| Size | 15 MB | 36 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ST JOHNS DIOCESAN SCHOOL FOR GIRLS](https://appshunter.io/developer/1493738853) | [Guangdong Chico Electronic Inc.](https://appshunter.io/developer/1238601940) |

## What reviewers say

### St John's DSG

[App page](https://appshunter.io/ios/app/st-johns-dsg/id1493738854)

**In-app purchases:** none


### POOL VISION

[App page](https://appshunter.io/ios/app/pool-vision/id1513844687)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is St John's DSG free?

St John's DSG is free to download, with no in-app purchases.

### Is POOL VISION free?

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

### Do St John's DSG or POOL VISION have ads?

Neither St John's DSG nor POOL VISION shows ads.

### Which is updated more often, St John's DSG or POOL VISION?

St John's DSG ships an update every 10 months, and POOL VISION every 9 months. Most recently, St John's DSG was updated on October 25, 2026 and POOL VISION on October 12, 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.*