ViewSonic Projector vs Epson Setting Assistant
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ViewSonic Projector
This app provides comprehensive knowledge for selecting and installing projectors. It offers practical guidance for various settings, helping users determine optimal placement based on room dimensions and desired screen size. Interactive simulations allow for real-time adjustments.
- Projector selection guidance
- Installation know-how
- Placement distance calculation
- Screen size and aspect ratio input
- Interactive distance adjustment
- Simulation scenarios
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ViewSonic Projector summarizes the projector’s basic and advanced know-how to end users, installers, or distributors. It contains a bunch of practical information for choosing appropriate projectors in different scenarios. No matter small meeting room, middle classroom, or big hall, ViewSonic Projector tells you how far the projector should be placed according to the room ceiling height, projector’s screen size, aspect ratio, etc. Just input several figures, the result will be displayed in the simulation scenarios with measurement. You can use finger to adjust the distance instantly.
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.
- Automatic shape correction
- Unevenness correction
- Rectangular image adjustment
- Frame alignment
- Surface irregularity detection
- QR code scanning for connection
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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/210/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
Verdict
The clearest difference is rating: Epson Setting Assistant at 4.4 against ViewSonic Projector's 2.7. Epson Setting Assistant also leads on ratings volume (447 vs 12). ViewSonic Projector's advantage is review sentiment (50% vs 23%) and iOS requirement (12.0 vs 17.0). On price, update cadence, ads and in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Epson Setting Assistant holds the better App Store score, 4.4 against 2.7. That said, the two scores are not equally well evidenced: Epson Setting Assistant has 447 ratings behind it against 12, so its average is the more settled of the two. Written reviews complicate that: 50% of ViewSonic Projector'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.
ViewSonic Projector ships an update every 3 months, Epson Setting Assistant every 5 months. The most recent releases landed on July 4, 2026 and September 23, 2026 respectively.
| Parameter | ViewSonic Projector | Epson Setting Assistant |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (12 ratings) | 4.4 (447 ratings) — better |
| Positive reviews | 50.0% of reviews — better | 22.7% of reviews |
| Number of ratings | 12 | 447 — better |
| Update frequency | Every 3 months — better | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 22 MB | 94 MB |
| Age rating | 17+ | 4+ |
| Developer | ViewSonic International Corp. | Seiko Epson Corporation |
Customer experience
ViewSonic Projector
Epson Setting Assistant
In-app purchases
ViewSonic Projector
No in-app purchases
Epson Setting Assistant
No in-app purchases





