# B1 Dex Utility vs Grafin

The clearest difference is iOS requirement: B1 Dex Utility at 12.0 against Grafin's 16.6. On price, rating, ratings volume and update cadence there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for B1 Dex Utility against 5.0 for Grafin. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

B1 Dex Utility ships an update every 3 weeks, Grafin monthly. Both last shipped on October 10, 2026.

## The numbers

| Metric | B1 Dex Utility | Grafin |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/b1-dex-utility/id6464839497/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/grafin/id6752789012/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 16 MB | 4 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Block One](https://appshunter.io/developer/1706416102) | [Gleb Ragalevich](https://appshunter.io/developer/1840955736) |

## What reviewers say

### B1 Dex Utility

[App page](https://appshunter.io/ios/app/b1-dex-utility/id6464839497)

This application allows drivers to scan and view information from BlockOne DEX utility devices. It supports debugging and modifying key device details like manufacturer name, serial number, and firmware revision for direct store delivery and full-service vending operations.

**Highlights:** Scan BlockOne DEX utility device information, View device details, Debug device information, Modify Manufacturer Name, Modify Serial Number, Modify Hardware Revision, Modify Firmware Revision, Modify UUID, Modify BlueTooth Name

**Features:** macOS Compatibility

**In-app purchases:** none


### Grafin

[App page](https://appshunter.io/ios/app/grafin/id6752789012)

This app offers a simple way to encrypt and decrypt text messages and notes locally on your device. It generates unique keys for secure communication and experimentation with coding, all while working offline and without data collection.

**Highlights:** Text encryption, Offline functionality, Local data processing, Unique key generation, Secure messaging, Coding experimentation

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

**In-app purchases:** none


## Frequently asked questions

### Is B1 Dex Utility free?

B1 Dex Utility is free to download, with no in-app purchases.

### Is Grafin free?

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

### Which has better reviews, B1 Dex Utility or Grafin?

B1 Dex Utility and Grafin are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do B1 Dex Utility or Grafin have ads?

Neither B1 Dex Utility nor Grafin shows ads.

### Which is updated more often, B1 Dex Utility or Grafin?

B1 Dex Utility ships an update every 3 weeks, and Grafin monthly. Most recently, B1 Dex Utility was updated on October 10, 2026 and Grafin 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.*