# District 31 Pre vs Knowlify PRIME

The clearest difference is in-app purchases: District 31 Pre at none against Knowlify PRIME's 10. District 31 Pre also leads on device support. On price and iOS requirement there is nothing between them.

Both are free to download. Knowlify PRIME sells 10 one-off in-app purchases. District 31 Pre asks for nothing beyond the download.

## The numbers

| Metric | District 31 Pre | Knowlify PRIME |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Size | 163 MB | 144 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [Solved Education Consultancy, LLC](https://appshunter.io/developer/1506645558) | [Online Learning](https://appshunter.io/developer/1790866777) |

## What reviewers say

### District 31 Pre

[App page](https://appshunter.io/ios/app/district-31-pre-k-centers/id1612143145)

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

**In-app purchases:** none


### Knowlify PRIME

[App page](https://appshunter.io/ios/app/knowlify-prime/id6504239001)

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package - AU | $34.99 | one-time |
| Package - AV | $34.99 | one-time |
| Package - AY | $39.99 | one-time |
| Package - AW | $39.99 | one-time |
| Package - AX | $39.99 | one-time |
| Package - BD | $39.99 | one-time |
| Package - BA | $39.99 | one-time |
| Package - BE | $44.99 | one-time |
| Package - BF | $49.99 | one-time |
| Package - BG | $49.99 | one-time |


## Frequently asked questions

### Is District 31 Pre free?

District 31 Pre is free to download, with no in-app purchases.

### Is Knowlify PRIME free?

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

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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.*