# B vs Invoice4all.gr

The clearest difference is iOS requirement: B at 13.0 against Invoice4all.gr's 15.5. On price, update cadence, ads and in-app purchases there is nothing between them.

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

B ships an update every 2 months, Invoice4all.gr every 6 weeks. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | B | Invoice4all.gr |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (176 ratings)](https://appshunter.io/ios/app/b-trust-mobile/id1324004217/reviews)** | — |
| Number of ratings | **176** | — |
| Positive reviews | 32.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 270 MB | 34 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BORICA AD](https://appshunter.io/developer/655449330) | [2 Monkeys EOOD](https://appshunter.io/developer/1456031035) |

## What reviewers say

### B

[App page](https://appshunter.io/ios/app/b-trust-mobile/id1324004217)

This app offers cloud-based trust services, including qualified electronic signatures with the same legal value as handwritten ones. It also provides remote identification and a non-qualified token service. The application is designed for ease of use, high security, and reliability on any internet-connected mobile device.

**Highlights:** Cloud Qualified Electronic Signature (QES), Non-qualified B-Token service, Remote client identification, Two-factor authentication, High security and reliability

**In-app purchases:** none


### Invoice4all.gr

[App page](https://appshunter.io/ios/app/invoice4allgr/id6746240764)

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

**In-app purchases:** none


## Frequently asked questions

### Is B free?

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

### Is Invoice4all.gr free?

Invoice4all.gr is free to download, with no in-app purchases.

### Do B or Invoice4all.gr have ads?

Neither B nor Invoice4all.gr shows ads.

### Which is updated more often, B or Invoice4all.gr?

B ships an update every 2 months, and Invoice4all.gr every 6 weeks. Most recently, B was updated on October 14, 2026 and Invoice4all.gr on October 10, 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.*