# ACT365 vs MASmobile FLEX

The clearest difference is update cadence: MASmobile FLEX at every 3 weeks against ACT365's every 3 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.

ACT365 ships an update every 3 months, MASmobile FLEX every 3 weeks. The most recent releases landed on October 9, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | ACT365 | MASmobile FLEX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 18 MB | 84 MB |
| Requires iOS | **14.5** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Vanderbilt, LLC](https://appshunter.io/developer/1053238756) | [Honeywell International, Inc.](https://appshunter.io/developer/311222963) |

## What reviewers say

### ACT365

[App page](https://appshunter.io/ios/app/act365/id1109000473)

**Features:** macOS Compatibility

**In-app purchases:** none


### MASmobile FLEX

[App page](https://appshunter.io/ios/app/masmobile-flex/id1517999227)

Manage customer data, place systems on or off test, and view event and zone history from a mobile device. This app requires MASterMind EX services and is designed for authorized central station personnel and dealers.

**Highlights:** Manage customer data, Place systems on/off test, View system event history, View test history, View system zones, Light and dark interface styles, Biometric login support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ACT365 free?

ACT365 is free to download, with no in-app purchases.

### Is MASmobile FLEX free?

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

### Do ACT365 or MASmobile FLEX have ads?

Neither ACT365 nor MASmobile FLEX shows ads.

### Which is updated more often, ACT365 or MASmobile FLEX?

ACT365 ships an update every 3 months, and MASmobile FLEX every 3 weeks. Most recently, ACT365 was updated on October 9, 2026 and MASmobile FLEX on October 23, 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.*