# 大眼错题本 vs Study Timer Display

The clearest difference is price: 大眼错题本 at Free against Study Timer Display's $1.99. Study Timer Display's advantage is update cadence (every 4 days vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

大眼错题本 is free to download; Study Timer Display costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

大眼错题本 ships an update every 5 months, Study Timer Display every 4 days. The most recent releases landed on October 13, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 大眼错题本 | Study Timer Display |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | — | Paid |
| Size | 38 MB | 19 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [自强 侯](https://appshunter.io/developer/1836935055) | [JAEMIN LEE](https://appshunter.io/developer/1787329213) |

## What reviewers say

### 大眼错题本

[App page](https://appshunter.io/ios/app/id6754898444)

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

**In-app purchases:** none


### Study Timer Display

[App page](https://appshunter.io/ios/app/study-timer-display/id6755321443)

Transform your device into a minimalist, distraction-free desk clock. Ideal for students and productivity environments, it helps maintain focus during study sessions and homework.

**Highlights:** Minimalist desk clock design, Distraction-free environment, Ideal for study sessions, Suitable for homework time, Useful for library use, Enhances productivity

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

**In-app purchases:** none


## Frequently asked questions

### Is 大眼错题本 free?

大眼错题本 is free to download, with no in-app purchases.

### Is Study Timer Display free?

Study Timer Display costs $1.99, with no in-app purchases.

### Do 大眼错题本 or Study Timer Display have ads?

Neither 大眼错题本 nor Study Timer Display shows ads.

### Which is updated more often, 大眼错题本 or Study Timer Display?

大眼错题本 ships an update every 5 months, and Study Timer Display every 4 days. Most recently, 大眼错题本 was updated on October 13, 2026 and Study Timer Display on September 21, 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.*