# Signet vs VNPT SmartCA

The clearest difference is rating: Signet at 3.6 against VNPT SmartCA's 2.1. VNPT SmartCA's advantage is review sentiment (45% vs 33%) and iOS requirement (13.0 vs 15.0). On price, ratings volume, update cadence and ads there is nothing between them.

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

Signet holds the better App Store score, 3.6 against 2.1. Both are backed by a comparable volume of ratings — 20 and 20 respectively. Written reviews complicate that: 33% of Signet's written reviews are positive against 45% of VNPT SmartCA's, so the app with the better star average is not the one people write more warmly about.

Signet ships an update fortnightly, VNPT SmartCA every 4 weeks. The most recent releases landed on September 23, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Signet | VNPT SmartCA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (20 ratings)](https://appshunter.io/ios/app/signet/id1483581287/reviews)** | [2.1 (20 ratings)](https://appshunter.io/ios/app/vnpt-smartca/id1540522462/reviews) |
| Number of ratings | 20 | 20 |
| Positive reviews | 33.3% of reviews | **44.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 weeks |
| Monetization | Free | Free |
| Size | 400 MB | 122 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [SIGNET TECHNOLOGY PLATFORM COMPANY LIMITED](https://appshunter.io/developer/1819061955) | [Vietnam Posts and Telecommunications Group](https://appshunter.io/developer/1215567249) |

## What reviewers say

### Signet

[App page](https://appshunter.io/ios/app/signet/id1483581287)

A secure and reliable communication system for professionals and organizations. It offers end-to-end encryption for private messaging, calling, and document sharing across popular operating systems.

**Highlights:** End-to-end encryption, Secure messaging and calling, Document sharing, Cross-platform compatibility, Data privacy controls, Reliable communication

**Features:** macOS Compatibility

**In-app purchases:** none


### VNPT SmartCA

[App page](https://appshunter.io/ios/app/vnpt-smartca/id1540522462)

This app provides a secure and efficient remote digital signing solution, allowing users to manage and execute digital signatures directly from their mobile devices. It offers features like online account registration, unlimited signing capabilities, and transaction tracking for a comprehensive digital signing experience.

**Highlights:** Online account registration with eKYC, Unlimited digital signing, Manage multiple certificates on one device, Online certificate registration and renewal, Sign, receive, and share files, Track digital signing transactions

**In-app purchases:** none


## Frequently asked questions

### Is Signet free?

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

### Is VNPT SmartCA free?

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

### Which has better reviews, Signet or VNPT SmartCA?

Signet is rated higher. Signet averages 3.6 out of 5 from 20 ratings, while VNPT SmartCA averages 2.1 from 20 ratings.

### Do Signet or VNPT SmartCA have ads?

Neither Signet nor VNPT SmartCA shows ads.

### Which is updated more often, Signet or VNPT SmartCA?

Signet ships an update fortnightly, and VNPT SmartCA every 4 weeks. Most recently, Signet was updated on September 23, 2026 and VNPT SmartCA on September 12, 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.*