# CueRack vs MistakeBook

The clearest difference is in-app purchases: MistakeBook at none against CueRack's 2. MistakeBook also leads on price ($1.99 vs $4.99) and iOS requirement (13.0 vs 18.6). CueRack's advantage is update cadence (weekly vs monthly). On ads and device support there is nothing between them.

CueRack costs $4.99 and MistakeBook $1.99 up front. CueRack sells 2 in-app purchases, starting at $0.99 per month. MistakeBook asks for nothing beyond the download.

CueRack ships an update weekly, MistakeBook monthly. The most recent releases landed on October 7, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | CueRack | MistakeBook |
| --- | --- | --- |
| Price | $4.99 | **$1.99** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | — | Paid |
| Size | 6 MB | 26 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Wei Te Hsu](https://appshunter.io/developer/1879744574) | [Xiamen City Fanyou Network Technology Co., Ltd.](https://appshunter.io/developer/1842524161) |

## What reviewers say

### CueRack

[App page](https://appshunter.io/ios/app/cuerack/id6761645077)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro-Monthly | $0.99 | per month |
| Basic One-Time Purchase | $4.99 | one-time |


### MistakeBook

[App page](https://appshunter.io/ios/app/mistakebook-wrong-answer-log/id6770173206)

Log and review incorrect answers to improve learning. Organize mistakes by subject and topic, and utilize spaced repetition to reinforce weak areas. Track progress with visual charts and daily check-ins for effective test preparation.

**Highlights:** Log mistakes with photos and notes, Organize by subject and custom tags, Spaced repetition review mode, Ebbinghaus forgetting curve schedule, Progress charts and stats dashboard, Data import/export backup

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

**In-app purchases:** none


## Frequently asked questions

### Is CueRack free?

CueRack costs $4.99, and also offers in-app purchases.

### Is MistakeBook free?

MistakeBook costs $1.99, with no in-app purchases.

### Do CueRack or MistakeBook have ads?

Neither CueRack nor MistakeBook shows ads.

### Which is updated more often, CueRack or MistakeBook?

CueRack ships an update weekly, and MistakeBook monthly. Most recently, CueRack was updated on October 7, 2026 and MistakeBook on October 1, 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.*