# FlashTastic K vs Retain

The clearest difference is in-app purchases: Retain at none against FlashTastic K's 6. FlashTastic K's advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. FlashTastic K sells 6 in-app purchases, starting at $4.99 per month. Retain asks for nothing beyond the download.

## The numbers

| Metric | FlashTastic K | Retain |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flashtastic-k-8-learning-games/id6757896573/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 26 MB | 43 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Atkins Media, LLC](https://appshunter.io/developer/1869503133) | [HonestyVision](https://appshunter.io/developer/1804536258) |

## What reviewers say

### FlashTastic K

[App page](https://appshunter.io/ios/app/flashtastic-k-8-learning-games/id6757896573)

This app provides AI-powered tutoring and gamified learning for K-8 students. It offers step-by-step homework help, personalized practice problems, and a comprehensive curriculum across multiple subjects. Features include offline functionality and detailed progress tracking for parents.

**Highlights:** AI-powered homework help with photo analysis, 24/7 AI study buddy for concept explanation, Comprehensive K-8 curriculum, Adaptive spaced repetition learning, Detailed parent progress dashboard, Offline functionality, Gamified learning with avatars and achievements

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Young Pro - Monthly | $4.99 | per month |
| Premium - Monthly | $9.99 | per month |
| Family Plan - Monthly | $13.99 | per month |
| Young Pro - Yearly | $49.99 | per year |
| Premium - Yearly | $99.99 | per year |
| Family Plan - Yearly | $139.99 | per year |


### Retain

[App page](https://appshunter.io/ios/app/retain-revision-tracker/id6799671289)

**In-app purchases:** none


## Frequently asked questions

### Is FlashTastic K free?

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

### Is Retain free?

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

### Do FlashTastic K or Retain have ads?

Neither FlashTastic K nor Retain shows ads.

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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.*