C vs PPT Viewer & PPT Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Wireless projection of documents and images
- Live camera feed projection
- Web page projection
- Remote computer control
- Supports Word, Excel, PowerPoint, PDF, JPEG, PNG, BMP
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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
PPT Viewer & PPT Reader
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Open, read and present PPT files on your iPhone and iPad, beautifully. PPT Viewer & PPT Reader opens .ppt and .pptx presentations from Files, iCloud Drive, Downloads, Mail or WhatsApp and shows every slide sharp and faithful to the original. Everything happens on your device: your files are never uploaded. PRESENT LIKE A PRO • Full-screen slideshow with the deck's own transitions: fade, push, wipe, cover, zoom and more • Animations play tap by tap, the way the deck was built • Tap the right side to go forward, the left side to go back, swipe down to finish PRESENTER TOOLS • Speaker notes, next slide and a timer while you present • Connect a TV or projector: the audience sees the slides, you see your notes • Built-in laser pointer: touch and hold to point • Works with Bluetooth presentation clickers and keyboards • Jump to any slide from the thumbnail strip READ WITH EASE • Smooth scrolling through every slide, pinch to zoom • Search the text of the whole presentation • Thumbnail grid to jump to any slide • Rotate to landscape for a bigger view • Keep the screen awake while you read EDIT ON THE GO • Change text, color, highlight and alignment • Insert photos from your library or the camera • Move, copy, cut and paste objects, with undo and redo • Convert old .ppt files to editable .pptx SHARE AND PRINT • Export any presentation as PDF • Print or share the file in one tap ORGANIZE • All your presentations in one library, with Recent and Favorites • Add folders such as Downloads or iCloud Drive to find every deck automatically • Sort, search, rename and delete PRIVATE BY DESIGN No account, no ads, no tracking, no data collected. Supports .pptx, .ppt, .ppsx, .pps, .potx, .pot and macro-enabled files. Available in English, French, German, Italian, Spanish, Portuguese and Arabic.
Screenshots
Verdict
The clearest difference is update cadence: PPT Viewer & PPT Reader at every 11 days against C's every 8 months. C's advantage is iOS requirement (8.0 vs 17.0). On price, ads, in-app purchases and device support 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.
C ships an update every 8 months, PPT Viewer & PPT Reader every 11 days. Both last shipped on November 6, 2026.
| Parameter | C | PPT Viewer & PPT Reader |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 27.3% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 8 months | Every 11 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 8.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 26 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | CASIO COMPUTER CO., LTD. | Mohamed Idris Merbai |
In-app purchases
C
No in-app purchases
PPT Viewer & PPT Reader
No in-app purchases





