# Postbank BestSign vs JointJar

The clearest difference is in-app purchases: Postbank BestSign at none against JointJar's 1. Postbank BestSign also leads on iOS requirement (16.0 vs 26.2). JointJar's advantage is update cadence (daily vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. JointJar sells 1 one-off in-app purchase. Postbank BestSign asks for nothing beyond the download.

Postbank BestSign ships an update every 2 months, JointJar daily. The most recent releases landed on October 26, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Postbank BestSign | JointJar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.1K ratings)](https://appshunter.io/ios/app/postbank-bestsign/id1442251022/reviews)** | — |
| Number of ratings | **1.1K** | — |
| Positive reviews | 68.5% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Daily** |
| Monetization | Free | — |
| Size | 81 MB | 19 MB |
| Requires iOS | **16.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Age rating | 4+ | 12+ |
| Developer | [Postbank - eine Niederlassung der DB Privat- und Firmenkundenbank AG](https://appshunter.io/developer/330289564) | [Joachim von Caron](https://appshunter.io/developer/1059668187) |

## What reviewers say

### Postbank BestSign

[App page](https://appshunter.io/ios/app/postbank-bestsign/id1442251022)

This app provides a secure and convenient way to authorize transactions in online banking. It focuses solely on the BestSign security procedure, allowing for quick setup and easy login using passwords or biometrics.

**Highlights:** Secure order authorization, Dedicated BestSign procedure, Password login, Biometric login support, Separate security app

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Quick and reliable
- 💡 Logical and intuitive security mechanism

**What reviewers complain about**

- 🐛 Flaky QR code activation, causing app lockups
- 🐛 Unreliable functionality, often not working
- 🔒 Security design flaw with shared login credentials
- 🤯 Convoluted and frustrating user experience
- 🐛 Frequent crashes and login issues

**Reported bugs**

- QR code activation issues
- Frequent login failures and account access denials
- Crashes on app startup

**Requested features**

- Multi-language support
- Improved reliability and stability


### JointJar

[App page](https://appshunter.io/ios/app/jointjar/id6477779925)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JointJar Pro – Lifetime | $4.99 | one-time |


## Frequently asked questions

### Is Postbank BestSign free?

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

### Is JointJar free?

JointJar is free to download, with in-app purchases available.

### Do Postbank BestSign or JointJar have ads?

Neither Postbank BestSign nor JointJar shows ads.

### Which is updated more often, Postbank BestSign or JointJar?

Postbank BestSign ships an update every 2 months, and JointJar daily. Most recently, Postbank BestSign was updated on October 26, 2026 and JointJar on October 7, 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.*