# BMS Supervisor vs GRSIA CTS

The clearest difference is update cadence: BMS Supervisor at every 2 months against GRSIA CTS's every 6 months. BMS Supervisor also leads on device support (3 vs 1). GRSIA CTS's advantage is iOS requirement (12.0 vs 14.3). On price, 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.

BMS Supervisor ships an update every 2 months, GRSIA CTS every 6 months. Both last shipped on October 26, 2026.

## The numbers

| Metric | BMS Supervisor | GRSIA CTS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 24 MB | 20 MB |
| Requires iOS | 14.3 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Koerber Technologies SpA](https://appshunter.io/developer/938061707) | [General Retirement & Social Insurance Authority](https://appshunter.io/developer/1218797855) |

## What reviewers say

### BMS Supervisor

[App page](https://appshunter.io/ios/app/bms-supervisor/id1414339418)

**In-app purchases:** none


### GRSIA CTS

[App page](https://appshunter.io/ios/app/grsia-cts/id1461039235)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is BMS Supervisor free?

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

### Is GRSIA CTS free?

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

### Do BMS Supervisor or GRSIA CTS have ads?

Neither BMS Supervisor nor GRSIA CTS shows ads.

### Which is updated more often, BMS Supervisor or GRSIA CTS?

BMS Supervisor ships an update every 2 months, and GRSIA CTS every 6 months. Most recently, BMS Supervisor was updated on October 26, 2026 and GRSIA CTS on October 26, 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.*