# ACE Maths Pro vs SISD Parent App

The clearest difference is in-app purchases: SISD Parent App at none against ACE Maths Pro's 1. SISD Parent App also leads on update cadence (every 2 days vs monthly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. ACE Maths Pro sells 1 one-off in-app purchase. SISD Parent App asks for nothing beyond the download.

ACE Maths Pro ships an update monthly, SISD Parent App every 2 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | ACE Maths Pro | SISD Parent App |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 days** |
| Size | 8 MB | 56 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Paul Carson](https://appshunter.io/developer/1888772646) | [Mobatia](https://appshunter.io/developer/407730880) |

## What reviewers say

### ACE Maths Pro

[App page](https://appshunter.io/ios/app/ace-maths-pro/id6761303323)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ACE Access | $19.99 | one-time |


### SISD Parent App

[App page](https://appshunter.io/ios/app/sisd-parent-app/id6803032738)

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

**In-app purchases:** none


## Frequently asked questions

### Is ACE Maths Pro free?

ACE Maths Pro is free to download, with in-app purchases available.

### Is SISD Parent App free?

SISD Parent App is free to download, with no in-app purchases.

### Do ACE Maths Pro or SISD Parent App have ads?

Neither ACE Maths Pro nor SISD Parent App shows ads.

### Which is updated more often, ACE Maths Pro or SISD Parent App?

ACE Maths Pro ships an update monthly, and SISD Parent App every 2 days. Most recently, ACE Maths Pro was updated on October 10, 2026 and SISD Parent App on October 6, 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.*