# Watchman Online vs AC Measure

The clearest difference is update cadence: AC Measure at every 2 weeks against Watchman Online's every 3 months. AC Measure also leads on iOS requirement (13.0 vs 15.1). 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.

Watchman Online ships an update every 3 months, AC Measure every 2 weeks. The most recent releases landed on October 4, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Watchman Online | AC Measure |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/watchman-online/id1434683526/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 31 MB | 7 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Watchman Online LLC](https://appshunter.io/developer/1492645434) | [Slomin's Inc.](https://appshunter.io/developer/468595151) |

## What reviewers say

### Watchman Online

[App page](https://appshunter.io/ios/app/watchman-online/id1434683526)

This utility app assists with the initial setup of a connected device, enabling WiFi connection. It also provides real-time display of environmental data such as temperature, humidity, and gas levels.

**Highlights:** Initial device setup, WiFi connectivity, Temperature logging, Humidity logging, Gas level monitoring

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

**In-app purchases:** none


### AC Measure

[App page](https://appshunter.io/ios/app/ac-measure/id6446480921)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Watchman Online free?

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

### Is AC Measure free?

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

### Do Watchman Online or AC Measure have ads?

Neither Watchman Online nor AC Measure shows ads.

### Which is updated more often, Watchman Online or AC Measure?

Watchman Online ships an update every 3 months, and AC Measure every 2 weeks. Most recently, Watchman Online was updated on October 4, 2026 and AC Measure on October 19, 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.*