C vs Dhru One
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
Dhru One
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Dhru One is the official mobile app for Dhru customers to manage their account, products, support, and workspaces in one place. Features: • View active and expired products • Check support and account status • Manage security settings and login activity • Control notification preferences • Create and track support tickets • Access supported Fusion Pro workspaces Dhru One is designed for existing Dhru customers and authorized workspace users.
Screenshots
Verdict
The clearest difference is update cadence: Dhru One at monthly against C's every 8 months. C's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 16.4). On price, 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.
C ships an update every 8 months, Dhru One monthly. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.
| Parameter | C | Dhru One |
|---|---|---|
| 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 | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 26 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | CASIO COMPUTER CO., LTD. | DHRU CLOUD PRIVATE LIMITED |
In-app purchases
C
No in-app purchases
Dhru One
No in-app purchases









