# B12 App vs MASTERBLOCK

The clearest difference is update cadence: B12 App at every 3 weeks against MASTERBLOCK's every 11 months. On price, ads, in-app purchases and device support there is nothing between them.

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

B12 App ships an update every 3 weeks, MASTERBLOCK every 11 months. The most recent releases landed on September 23, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | B12 App | MASTERBLOCK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (1.7K ratings)](https://appshunter.io/ios/app/b12-app/id1231823690/reviews)** | — |
| Number of ratings | **1.7K** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 11 months |
| Monetization | Free | — |
| Size | 17 MB | 28 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [B12 for Digital Services](https://appshunter.io/developer/1231823689) | [Cryptolex SA](https://appshunter.io/developer/502581123) |

## What reviewers say

### B12 App

[App page](https://appshunter.io/ios/app/b12-app/id1231823690)

This app serves as a digital school portal for guardians, centralizing all academic and non-academic school communications. It provides updates on events, marks, assignments, and allows for direct communication with school staff. Guardians can also track school bus locations and customize notification preferences.

**Highlights:** Academic and non-academic event notifications, Student marks and report cards, School announcements and administrative updates, Customizable event calendar, Private communication with school staff, School bus tracking and arrival notifications, Personalized notification preferences

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 💯 Excellent service
- 👍 User-friendly interface

**What reviewers complain about**

- 🐛 Frequent crashes
- ⏱️ Slow performance
- 🔌 Drains battery quickly

**Reported bugs**

- Unable to upload videos
- Incorrect family name display
- Blank image/video saving on iOS

**Requested features**

- Landscape mode support
- Ability to save/download media
- Point system for user engagement


### MASTERBLOCK

[App page](https://appshunter.io/ios/app/masterblock/id1446960356)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is B12 App free?

B12 App is free to download, with no in-app purchases.

### Is MASTERBLOCK free?

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

### Do B12 App or MASTERBLOCK have ads?

Neither B12 App nor MASTERBLOCK shows ads.

### Which is updated more often, B12 App or MASTERBLOCK?

B12 App ships an update every 3 weeks, and MASTERBLOCK every 11 months. Most recently, B12 App was updated on September 23, 2026 and MASTERBLOCK on September 5, 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.*