# B vs sign

The clearest difference is price: sign at Free against B's $0.99. sign also leads on review sentiment (40% vs 0%). On update cadence, ads, in-app purchases and device support there is nothing between them.

sign is free to download; B costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

B ships an update every 4 months, sign every 9 months. The most recent releases landed on October 11, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | B | sign |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/b-chat-simple-bluetooth-chat/id1423226489/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 9 months |
| Monetization | Paid | **Free** |
| Size | 4 MB | 11 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stanislav Svec](https://appshunter.io/developer/519241392) | [D-Trust GmbH](https://appshunter.io/developer/1572798038) |

## What reviewers say

### B

[App page](https://appshunter.io/ios/app/b-chat-simple-bluetooth-chat/id1423226489)

Communicate with up to 7 devices simultaneously using only Bluetooth, ideal for areas with no internet or cellular service. Enjoy privacy-first messaging with smart background notifications and a dark mode option.

**Highlights:** Offline Bluetooth communication, Connect up to 7 devices, Airplane mode friendly, Privacy-focused messaging, Background notifications, Dark mode support

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

**In-app purchases:** none


### sign

[App page](https://appshunter.io/ios/app/sign-me-2fa/id1572798036)

This app provides a secure second factor for authenticating qualified electronic signatures. It ensures your online signatures are legally compliant and protected.

**Highlights:** eIDAS-compliant remote signature solution, Legally sign electronic documents, Second factor authentication for QES, Recommended for qualified electronic signature approval

**In-app purchases:** none


## Frequently asked questions

### Is B free?

B costs $0.99, with no in-app purchases.

### Is sign free?

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

### Do B or sign have ads?

Neither B nor sign shows ads.

### Which is updated more often, B or sign?

B ships an update every 4 months, and sign every 9 months. Most recently, B was updated on October 11, 2026 and sign on October 2, 2026.

---

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