# Zhizhi vs Apper

The clearest difference is in-app purchases: Zhizhi at none against Apper's 2. Zhizhi also leads on device support (4 vs 1) and iOS requirement (12.0 vs 26.0). On price and ads there is nothing between them.

Both are free to download. Apper sells 2 in-app purchases, starting at $19.99 per year. Zhizhi asks for nothing beyond the download.

## The numbers

| Metric | Zhizhi | Apper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/zhizhi/id6740143014/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 days |
| Monetization | Free | — |
| Size | 38 MB | 29 MB |
| Requires iOS | **12.0** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [CoreSpeed Inc.](https://appshunter.io/developer/1717281942) | [林 廖](https://appshunter.io/developer/1875988646) |

## What reviewers say

### Zhizhi

[App page](https://appshunter.io/ios/app/zhizhi/id6740143014)

This app uses AI to provide instant, one-minute podcast-style explanations of academic terms and content on each page of your documents. It acts like a personal tutor, making complex papers and lectures more accessible.

**Highlights:** AI-powered explanations, One-minute summaries per page, Academic term clarification, Document content analysis, Personalized tutor experience

**In-app purchases:** none


### Apper

[App page](https://appshunter.io/ios/app/apper-save-apps-as-ideas/id6792308429)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Apper Pro Yearly | $19.99 | per year |
| Apper Pro Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is Zhizhi free?

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

### Is Apper free?

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

### Do Zhizhi or Apper have ads?

Neither Zhizhi nor Apper 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.*