# iSchool Digital Platform vs Retent

The clearest difference is update cadence: Retent at every 10 days against iSchool Digital Platform's every 3 weeks. iSchool Digital Platform's advantage is iOS requirement (12.1 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. iSchool Digital Platform sells 10 one-off in-app purchases and Retent sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

iSchool Digital Platform ships an update every 3 weeks, Retent every 10 days. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | iSchool Digital Platform | Retent |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 100 MB | 27 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 9+ |
| Developer | [iSchool Bulgaria OOD](https://appshunter.io/developer/1488481481) | [Kristiyan Grigorov](https://appshunter.io/developer/1885305370) |

## What reviewers say

### iSchool Digital Platform

[App page](https://appshunter.io/ios/app/ischool-digital-platform/id1488481482)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BEL 6th grade textbook | $2.99 | one-time |
| BEL 3rd grade textbook | $2.99 | one-time |
| BEL 1st grade textbook | $2.99 | one-time |
| BEL 4rd grade textbook | $2.99 | one-time |
| BEL 2nd grade textbook | $2.99 | one-time |
| Preparation in BEL for ext 7th | $3.99 | one-time |
| Preparation in Math ext 7th | $4.99 | one-time |
| Collection of math problems 6. | $4.99 | one-time |
| Collection of math problems 7. | $4.99 | one-time |
| Finance Analyze | $9.99 | one-time |


### Retent

[App page](https://appshunter.io/ios/app/retent-learn-and-remember/id6760609613)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Retent Unlimited Monthly | $6.99 | per month |
| Retent Unlimited Yearly | $39.99 | per year |


## Frequently asked questions

### Is iSchool Digital Platform free?

iSchool Digital Platform is free to download, with in-app purchases available.

### Is Retent free?

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

### Do iSchool Digital Platform or Retent have ads?

Neither iSchool Digital Platform nor Retent shows ads.

### Which is updated more often, iSchool Digital Platform or Retent?

iSchool Digital Platform ships an update every 3 weeks, and Retent every 10 days. Most recently, iSchool Digital Platform was updated on October 7, 2026 and Retent on October 14, 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.*