# rSign by Cencert vs KDPW Group Authenticator

The clearest difference is update cadence: rSign by Cencert at every 2 weeks against KDPW Group Authenticator's monthly. KDPW Group Authenticator's advantage is iOS requirement (12.1 vs 15.0). 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.

rSign by Cencert ships an update every 2 weeks, KDPW Group Authenticator monthly. The most recent releases landed on September 24, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | rSign by Cencert | KDPW Group Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free | — |
| Size | 61 MB | 18 MB |
| Requires iOS | 15.0 | **12.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Enigma SOI](https://appshunter.io/developer/965786000) | [KDPW](https://appshunter.io/developer/1555037492) |

## What reviewers say

### rSign by Cencert

[App page](https://appshunter.io/ios/app/rsign-by-cencert/id1549928034)

This app replaces physical signature cards and readers for placing qualified electronic signatures. It allows you to sign documents on any computer without needing specialized hardware, ensuring you never forget your signature card again.

**Highlights:** Qualified electronic signature placement, Replaces physical signature cards, Eliminates need for card readers, Sign on any computer, Convenient document signing

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

**In-app purchases:** none


### KDPW Group Authenticator

[App page](https://appshunter.io/ios/app/kdpw-group-authenticator/id1555037490)

**In-app purchases:** none


## Frequently asked questions

### Is rSign by Cencert free?

rSign by Cencert is free to download, with no in-app purchases.

### Is KDPW Group Authenticator free?

KDPW Group Authenticator is free to download, with no in-app purchases.

### Do rSign by Cencert or KDPW Group Authenticator have ads?

Neither rSign by Cencert nor KDPW Group Authenticator shows ads.

### Which is updated more often, rSign by Cencert or KDPW Group Authenticator?

rSign by Cencert ships an update every 2 weeks, and KDPW Group Authenticator monthly. Most recently, rSign by Cencert was updated on September 24, 2026 and KDPW Group Authenticator on September 15, 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.*