B1 Dex Utility vs Grafin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
B1 Dex Utility
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.
- 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
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This app can scan and view BlockOne DEX utility device information. BlockOne DEX utility for direct store delivery(DSD) and full service vending(FSV) drivers. You can using this app to debug and modify BlockOne DEX utility device's information. Supporting the modification of the following information: Manufacturer Name Serial Number Hardware Revision Firmware Revision UUID BlueTooth Name
Grafin
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.
- Text encryption
- Offline functionality
- Local data processing
- Unique key generation
- Secure messaging
- Coding experimentation
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Grafin is a simple, privacy-focused app for encrypting text. Turn any message or note into encrypted text in seconds. To decrypt it, the recipient needs the correct key — a key that stays in your hands. Everything happens locally on your device. Grafin works fully offline, collects no data, and never sends your text or encryption keys anywhere. Use it to protect private notes, exchange encrypted messages while sharing the key through a separate channel, or just explore a simple way to encode and decode text.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | B1 Dex Utility | Grafin |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 2 |
| Update frequency | Every 3 weeks — better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 16 MB | 4 MB |
| Age rating | 17+ | 4+ |
| Developer | Block One | Gleb Ragalevich |
Customer experience
B1 Dex Utility
Grafin
In-app purchases
B1 Dex Utility
No in-app purchases
Grafin
No in-app purchases
