# Epson Setting Assistant vs C

The clearest difference is iOS requirement: C at 15.0 against Epson Setting Assistant's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Epson Setting Assistant ships an update every 5 months, C every 4 months. The most recent releases landed on October 1, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Epson Setting Assistant | C |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (447 ratings)](https://appshunter.io/ios/app/epson-setting-assistant/id1606269288/reviews)** | — |
| Number of ratings | **447** | — |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 94 MB | 33 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Seiko Epson Corporation](https://appshunter.io/developer/326876195) | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) |

## What reviewers say

### Epson Setting Assistant

[App page](https://appshunter.io/ios/app/epson-setting-assistant/id1606269288)

This app uses your device's camera to automatically correct the shape and unevenness of a projected image. It adjusts the projection to fit a screen or frame and compensates for surface irregularities for a clearer picture.

**Highlights:** Automatic shape correction, Unevenness correction, Rectangular image adjustment, Frame alignment, Surface irregularity detection, QR code scanning for connection

**In-app purchases:** none


### C

[App page](https://appshunter.io/ios/app/c-mirroring/id6464287342)

**In-app purchases:** none


## Frequently asked questions

### Is Epson Setting Assistant free?

Epson Setting Assistant is free to download, with no in-app purchases.

### Is C free?

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

### Do Epson Setting Assistant or C have ads?

Neither Epson Setting Assistant nor C shows ads.

### Which is updated more often, Epson Setting Assistant or C?

Epson Setting Assistant ships an update every 5 months, and C every 4 months. Most recently, Epson Setting Assistant was updated on October 1, 2026 and C on September 27, 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.*