# respon vs C

The clearest difference is update cadence: C at every 3 weeks against respon's every 3 months. C also leads on iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

respon ships an update every 3 months, C every 3 weeks. The most recent releases landed on September 22, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | respon | C |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 16 MB | 52 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [respon, Inc.](https://appshunter.io/developer/1441360548) | [Netman. Co.,Ltd.](https://appshunter.io/developer/1097455605) |

## What reviewers say

### respon

[App page](https://appshunter.io/ios/app/respon/id966831550)

**Features:** Vision Pro support

**In-app purchases:** none


### C

[App page](https://appshunter.io/ios/app/c-learning-for-student/id1097455606)

This learning management system client allows students and employees to access educational materials, take quizzes, and participate in collaborative projects. It supports domain switching for different organizations and offers features for registering lectures and answering surveys.

**Highlights:** Domain switching for organizations, Lecture registration, Survey and quiz participation, Material browsing and sharing, Collaborative image/video uploads

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

**In-app purchases:** none


## Frequently asked questions

### Is respon free?

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

### Is C free?

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

### Do respon or C have ads?

Neither respon nor C shows ads.

### Which is updated more often, respon or C?

respon ships an update every 3 months, and C every 3 weeks. Most recently, respon was updated on September 22, 2026 and C on September 6, 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.*