# Helios Kids vs Retent

The clearest difference is update cadence: Retent at every 8 days against Helios Kids's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Helios Kids sells 2 in-app purchases, starting at $5.99 per month 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.

Helios Kids ships an update every 3 weeks, Retent every 8 days. The most recent releases landed on October 25, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Helios Kids | Retent |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Size | 137 MB | 27 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Kaloyan Koravski](https://appshunter.io/developer/1576063017) | [Kristiyan Grigorov](https://appshunter.io/developer/1885305370) |

## What reviewers say

### Helios Kids

[App page](https://appshunter.io/ios/app/helios-kids/id6739787909)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription (1 Month) | $5.99 | per month |
| Yearly Subscription (1 Year) | $29.99 | per year |


### 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 Helios Kids free?

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

### Is Retent free?

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

### Do Helios Kids or Retent have ads?

Neither Helios Kids nor Retent shows ads.

### Which is updated more often, Helios Kids or Retent?

Helios Kids ships an update every 3 weeks, and Retent every 8 days. Most recently, Helios Kids was updated on October 25, 2026 and Retent on November 5, 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.*