# FPT vs C.SIGN

The clearest difference is update cadence: C.SIGN at every 2 weeks against FPT's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

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

FPT ships an update every 2 months, C.SIGN every 2 weeks. The most recent releases landed on September 13, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | FPT | C.SIGN |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 8.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 160 MB | 162 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [FPT IS Company Limited](https://appshunter.io/developer/1437861502) | [CMC Technology and Solution Company Limited](https://appshunter.io/developer/1498575851) |

## What reviewers say

### FPT

[App page](https://appshunter.io/ios/app/fpt-ca-mpki/id1606297813)

This app acts as a smart security key for online services, enabling secure authorization and approval of document signings and transactions remotely via your mobile device. It utilizes two-factor authentication and advanced encryption for robust security.

**Highlights:** Secure remote authorization for document signing, Two-factor authentication via mobile device, Cryptographically protected authorization file, Biometric (Touch ID/Face ID) or PIN access, Server-side signing process integration, ID verification and selfie matching, Live selfie capture detection

**In-app purchases:** none


### C.SIGN

[App page](https://appshunter.io/ios/app/csign/id6443462181)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is FPT free?

FPT is free to download, with no in-app purchases.

### Is C.SIGN free?

C.SIGN is free to download, with no in-app purchases.

### Do FPT or C.SIGN have ads?

Neither FPT nor C.SIGN shows ads.

### Which is updated more often, FPT or C.SIGN?

FPT ships an update every 2 months, and C.SIGN every 2 weeks. Most recently, FPT was updated on September 13, 2026 and C.SIGN on September 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*