Comparison

C vs Epson Setting Assistant

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

C

Connect your iOS device to a CASIO projector to wirelessly display documents, images, live camera feeds, and web pages. It also allows for remote control of a connected computer for enhanced presentations.

Highlights
  • Wireless projection of documents and images
  • Live camera feed projection
  • Web page projection
  • Remote computer control
  • Supports Word, Excel, PowerPoint, PDF, JPEG, PNG, BMP
Features
Read full description

CASIO C-Assist is an iOS app that makes it possible to establish a network connection between an iPad, iPhone, or iPod Touch device and CASIO Projector,*1 and then project documents and images stored in the device's memory, real-time images picked up by the device's built-in camera, and browser screen images. It also enables remote control of a computer connected on the same network for smarter and more efficient presentations. ・File Viewer  For projection of documents and images*2 registered with CASIO C-Assist ・Wireless Camera  For real-time projection of images picked up by the smart device's camera ・Browser  For projection of Web page images using CASIO C-Assist's Web browser ・Remote computer control  For remote control of a computer by a smart device over a network connection Supported Operating Systems iOS 6.0 - 11.4 *1 Supported Projectors XJ-A147, XJ-A247, XJ-A257, XJ-A300WN XJ-M146, XJ-M156, XJ-M246, XJ-M256, XJ-M300XN, XJ-M300WN XJ-UT310WN, XJ-UT311WN, XJ-UT351WN, XJ-UT255 XJ-F20XN, XJ-F200WN, XJ-F210WN (Some models covered by this app may not be available in certain geographic areas.) *2 Projectable Document and Image Files Microsoft Word (doc, docx) Microsoft Excel (xls, xlsx) Microsoft PowerPoint (ppt, pptx) PDF JPEG, PNG, BMP Using CASIO C-Assist Follow the steps below to establish a connection between a smart device and projector and use CASIO C-Assist. 1. Configure projector network settings and then select "Network" as the projectors input source. This will cause the standby screen, showing network information, to be projected. 2. On the smart device, select [Settings] and then [Wi-Fi]. Next, select the same network where the projector is selected. 3. Start up CASIO C-Assist 4. After starting up, CASIO C-Assist will find all connectable projectors on the network and displays them on the smart device screen. Select the projector to which you want to connect. 5. On the home screen, select the function you want to use. Support Site https://world.casio.com

About

Epson Setting Assistant

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
Read full description

Epson Setting Assistant is an app that automatically corrects the shape of a projected image by using your camera. By taking a shot of the projected pattern, the app automatically corrects distortion in the projected image and adjusts its shape to match the screen. [Main Features] 1) Shape correction The app adjusts the image to a rectangular shape or aligns it with a frame, such as a projector screen. 2) Unevenness correction The app detects small surface irregularities, such as on a wall, and corrects distortion in the projected image. [For Home Projector (EH Series) Users: Using the App] Make sure your iPhone®, iPad®, or iPod® touch and the projector are connected to the same network. 1. Select [Installation] ([Installation] > [Geometry Correction Wizard]) from the projector's menu. 2. Open this app on your iPhone®, iPad®, or iPod® touch and select [Home] as the projector type to automatically connect to the projector. 3. Follow the on-screen instructions to take a shot of the projected pattern using the camera in the app, and the corrections will be completed automatically. [For Business Projector (EB Series) Users: Using the App] Make sure the [Wireless LAN Power] setting is set to [On] in the projector‘s [Management] menu. 1. Select [Installation] > [Connect to Setting Assistant] from the projector's menu to project a QR code. 2. Open this app on your iPhone®, iPad®, or iPod® touch, select [Business] as the projector's type, and then scan the QR code to automatically connect to the projector. 3. Follow the on-screen instructions to take a shot of the projected pattern using the camera in the app, and the corrections will be completed automatically. [Supported Projectors] Visit https://support.epson.net/projector_appinfo/setting_assistant/en/ for details. Depending on your projector model, some features may not be available. [Notes for use] Depending on your environment, such as a curved projection surface or wallpaper with rough textures or patterns, automatic correction using the app may not be available. In these situations, please correct the image shape from the projector's menu. Depending on your smartphone/tablet, the Wi-Fi settings may prevent you from temporarily connecting to the projector. Turn your Wi-Fi off and then on again and try again. For detailed important points, visit https://download2.ebz.epson.net/sec_pubs_visual/apps/setting_assistant/230/EN/index.html. You can also check these from the [Online support guide] in the menu at the top right of the app. Images used here are for illustrative purposes only. The actual images may differ. [App Permissions] To use the app, the following permissions are required. [Required] Local Network For searching and connecting to the projector. [Required] Camera For capturing correction patterns or QR codes for connection. * Optional permissions can be declined, but some features may not work.

Screenshots

C4 screens
Epson Setting Assistant3 screens

Verdict

The call

The clearest difference is rating: Epson Setting Assistant at 4.4 against C's 3.0. Epson Setting Assistant also leads on ratings volume (467 vs 2). C's advantage is iOS requirement (8.0 vs 17.0). On price, review sentiment, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Epson Setting Assistant holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: Epson Setting Assistant has 467 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 27% of C's written reviews are positive against 23% of Epson Setting Assistant's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

C ships an update every 8 months, Epson Setting Assistant every 4 months. Both last shipped on October 25, 2026.

Scorecard3 real differences · 7 level
C versus Epson Setting Assistant: the parameters behind the verdict, then further details
ParameterCEpson Setting Assistant
PriceFreeFree
Rating3.0 (2 ratings)4.4 (467 ratings) — better
Positive reviews27.3% of reviews — better23.1% of reviews
Number of ratings2467 — better
Update frequencyEvery 8 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better17.0
Further details — not scored
Size26 MB100 MB
Age rating4+4+
DeveloperCASIO COMPUTER CO., LTD.Seiko Epson Corporation

Customer experience

C

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews22 reviews
Positive27.3%
Neutral13.6%
Negative59.1%

Epson Setting Assistant

All ratings464 ratings
Positive85.1%
Neutral1.7%
Negative13.1%
Written reviews26 reviews
Positive23.1%
Neutral0.0%
Negative76.9%

In-app purchases

None

C

No in-app purchases

None

Epson Setting Assistant

No in-app purchases

Questions

Is C free?
C is free to download, with no in-app purchases.
Is Epson Setting Assistant free?
Epson Setting Assistant is free to download, with no in-app purchases.
Which has better reviews, C or Epson Setting Assistant?
Epson Setting Assistant is rated higher. C averages 3.0 out of 5 from 2 ratings, while Epson Setting Assistant averages 4.4 from 467 ratings.
Do C or Epson Setting Assistant have ads?
Neither C nor Epson Setting Assistant shows ads.
Which is updated more often, C or Epson Setting Assistant?
C ships an update every 8 months, and Epson Setting Assistant every 4 months. Most recently, C was updated on October 25, 2026 and Epson Setting Assistant on October 25, 2026.

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