# 字查查 vs Learn C Programming

The clearest difference is in-app purchases: 字查查 at none against Learn C Programming's 1. 字查查 also leads on iOS requirement (11.0 vs 17.0). Learn C Programming's advantage is update cadence (every 3 months vs every 39 months) and device support. On price there is nothing between them.

Both are free to download. Learn C Programming sells 1 one-off in-app purchase. 字查查 asks for nothing beyond the download.

字查查 ships an update every 39 months, Learn C Programming every 3 months. The most recent releases landed on September 14, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | 字查查 | Learn C Programming |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | — | No |
| Update frequency | Every 39 months | **Every 3 months** |
| Size | 227 MB | 19 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [133 Limited](https://appshunter.io/developer/412398621) | [文利 罗](https://appshunter.io/developer/1743701483) |

## What reviewers say

### 字查查

[App page](https://appshunter.io/ios/app/id1672170572)

**In-app purchases:** none


### Learn C Programming

[App page](https://appshunter.io/ios/app/learn-c-programming-offline/id6505055441)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| C Language Assistant Unlock | $1.99 | one-time |


## Frequently asked questions

### Is 字查查 free?

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

### Is Learn C Programming free?

Learn C Programming is free to download, with in-app purchases available.

### Which is updated more often, 字查查 or Learn C Programming?

字查查 ships an update every 39 months, and Learn C Programming every 3 months. Most recently, 字查查 was updated on September 14, 2026 and Learn C Programming on September 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*