# Achiever Flashcards vs Hyper Flow Piano

The clearest difference is in-app purchases: Hyper Flow Piano at none against Achiever Flashcards's 4. Hyper Flow Piano also leads on update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Achiever Flashcards sells 4 in-app purchases, starting at $16.90 per year. Hyper Flow Piano asks for nothing beyond the download.

Achiever Flashcards ships an update fortnightly, Hyper Flow Piano every 3 days. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Achiever Flashcards | Hyper Flow Piano |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 53 MB | 73 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Achiever Software](https://appshunter.io/developer/1652916799) | [Two Tones Higher Ltd](https://appshunter.io/developer/1893121618) |

## What reviewers say

### Achiever Flashcards

[App page](https://appshunter.io/ios/app/achiever-flashcards/id6444188884)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly subscription | $16.90 | per year |
| Ultimate Hiragana | Free | one-time |
| Маркетинговые термины | $0.99 | one-time |
| Lifetime Subscription | $39.99 | one-time |


### Hyper Flow Piano

[App page](https://appshunter.io/ios/app/hyper-flow-piano/id6762143401)

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

**In-app purchases:** none


## Frequently asked questions

### Is Achiever Flashcards free?

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

### Is Hyper Flow Piano free?

Hyper Flow Piano is free to download, with no in-app purchases.

### Do Achiever Flashcards or Hyper Flow Piano have ads?

Neither Achiever Flashcards nor Hyper Flow Piano shows ads.

### Which is updated more often, Achiever Flashcards or Hyper Flow Piano?

Achiever Flashcards ships an update fortnightly, and Hyper Flow Piano every 3 days. Most recently, Achiever Flashcards was updated on October 27, 2026 and Hyper Flow Piano on October 25, 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.*