# FlipUp vs Peek

The clearest difference is in-app purchases: FlipUp at none against Peek's 2. FlipUp also leads on update cadence (every 4 days vs every 2 weeks). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Peek sells 2 in-app purchases, starting at $4.99 per month. FlipUp asks for nothing beyond the download.

FlipUp ships an update every 4 days, Peek every 2 weeks. The most recent releases landed on October 7, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | FlipUp | Peek |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/flipup-flashcards/id6751901427/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 14 MB | 59 MB |
| Requires iOS | **17.6** | 18.2 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Dexis Development](https://appshunter.io/developer/1842289966) | [Melvyn Hoarau](https://appshunter.io/developer/1880600559) |

## What reviewers say

### FlipUp

[App page](https://appshunter.io/ios/app/flipup-flashcards/id6751901427)

Learn new material directly from your phone's lock screen using interactive widgets. Practice flashcards with simple swipes and track your mastery progress. AI can help generate focused study lists for efficient memorization.

**Highlights:** Lock screen flashcard widget, Interactive practice and answer reveal, AI-generated study lists, 5-dot mastery tracking system, Fast swipe memorization

**In-app purchases:** none


### Peek

[App page](https://appshunter.io/ios/app/peek-learn-language-passively/id6759779792)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peek+ Monthly | $4.99 | per month |
| Peek+ Annual | $29.99 | per year |


## Frequently asked questions

### Is FlipUp free?

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

### Is Peek free?

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

### Do FlipUp or Peek have ads?

Neither FlipUp nor Peek shows ads.

### Which is updated more often, FlipUp or Peek?

FlipUp ships an update every 4 days, and Peek every 2 weeks. Most recently, FlipUp was updated on October 7, 2026 and Peek 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.*