# sigma education vs Xplain

The clearest difference is in-app purchases: sigma education at none against Xplain's 3. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Xplain sells 3 in-app purchases, starting at $14.99 per month. sigma education asks for nothing beyond the download.

sigma education ships an update weekly, Xplain every 9 days. The most recent releases landed on September 18, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | sigma education | Xplain |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 9 days |
| Size | 61 MB | 86 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [qusai gamal](https://appshunter.io/developer/1713518815) | [Shebang Labs OÜ](https://appshunter.io/developer/1832492400) |

## What reviewers say

### sigma education

[App page](https://appshunter.io/ios/app/sigma-education/id6760257428)

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

**In-app purchases:** none


### Xplain

[App page](https://appshunter.io/ios/app/xplain/id6761678978)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ask Xplore Monthly | $14.99 | per month |
| Ask Xplore Semi Annual | $49.99 | per 6 months |
| Ask Xplore Annual | $69.99 | per year |


## Frequently asked questions

### Is sigma education free?

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

### Is Xplain free?

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

### Do sigma education or Xplain have ads?

Neither sigma education nor Xplain shows ads.

### Which is updated more often, sigma education or Xplain?

sigma education ships an update weekly, and Xplain every 9 days. Most recently, sigma education was updated on September 18, 2026 and Xplain on September 20, 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.*