# SynDigi vs Slate Kids

The clearest difference is in-app purchases: Slate Kids at none against SynDigi's 1. Slate Kids also leads on update cadence (every 5 days vs every 24 months). SynDigi's advantage is iOS requirement (16.6 vs 18.0). On price, ads and device support there is nothing between them.

Both are free to download. SynDigi sells 1 one-off in-app purchase. Slate Kids asks for nothing beyond the download.

SynDigi ships an update every 24 months, Slate Kids every 5 days. The most recent releases landed on October 27, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | SynDigi | Slate Kids |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 24 months | **Every 5 days** |
| Size | 319 MB | 8 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Spayee Labs](https://appshunter.io/developer/1219640854) | [Occupy Mars Private Limited](https://appshunter.io/developer/6793016423) |

## What reviewers say

### SynDigi

[App page](https://appshunter.io/ios/app/syndigi/id1607315932)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Course: English Class | $10.99 | one-time |


### Slate Kids

[App page](https://appshunter.io/ios/app/slate-kids/id6793016421)

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

**In-app purchases:** none


## Frequently asked questions

### Is SynDigi free?

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

### Is Slate Kids free?

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

### Do SynDigi or Slate Kids have ads?

Neither SynDigi nor Slate Kids shows ads.

### Which is updated more often, SynDigi or Slate Kids?

SynDigi ships an update every 24 months, and Slate Kids every 5 days. Most recently, SynDigi was updated on October 27, 2026 and Slate Kids on October 19, 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.*