C vs Seffo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
C
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Wireless operation for smooth meetings and presentations. CASIO C-Mirroring is an iOS app that makes it possible to establish a network connection between an iPad, iPhone device and network-compatible 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. *1 Applicable Projector Models: XJ-S400UN/S400WN XJ-UT352WN XJ-F211WN/XJ-F21XN (Some models covered by this app may not be available in certain geographic areas.) ・File Viewer: Projects documents and images *2 registered with CASIO C-Mirroring. ・Wireless Camera: Projects real-time images picked up by the device's built-in camera. ・Browser: Uses the application's built-in web browser to project web pages with the projector. *2 Projectable Document and Image Files Microsoft Word (doc, docx) Microsoft Excel (xls, xlsx) Microsoft PowerPoint (ppt, pptx) PDF JPEG, PNG Using CASIO C-Mirroring Use the steps below to establish a connection between a smart device and projector with this app. If you are already connected via a wireless LAN access point, refer to your projector's Network Function Guide. (1) Configure projector network settings. (2) Select "Network" as the projectors input source. This projects the standby screen, which shows network information. (3) On the smart device, select the desired access point with "Settings" - "Wi-Fi" and establish a connection. (4) Start up CASIO C-Mirroring. (5) On the home screen, select the function you want and execute it. (6) When you want to project with the projector, tap the Play button. When a connectable projector is found, select it. If a connectable projector isn't found, input IP address of the projector then connect to it.
Seffo
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Seffo makes attendance tracking effortless with a simple punch-in and punch-out system. Whether managing in-office or remote teams, Seffo helps businesses accurately track work hours, generate reports, and improve productivity. With an intuitive interface and seamless functionality, staying organized has never been easier. Optimize your workforce management with Seffo today!
Screenshots
Verdict
The clearest difference is update cadence: Seffo at monthly against C's every 4 months. 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 4 months, Seffo monthly. The most recent releases landed on October 13, 2026 and September 28, 2026 respectively.
| Parameter | C | Seffo |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 33 MB | 46 MB |
| Age rating | 17+ | 12+ |
| Developer | CASIO COMPUTER CO., LTD. | Xilligence |
In-app purchases
C
No in-app purchases
Seffo
No in-app purchases









