# Millimeter Pro vs AquaDose

The clearest difference is price: AquaDose at Free against Millimeter Pro's $3.99. Millimeter Pro's advantage is chart position (#186 vs unranked) and iOS requirement (15.0 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

AquaDose is free to download; Millimeter Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Millimeter Pro ships an update every 4 months, AquaDose every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Millimeter Pro | AquaDose |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[4.4 (109 ratings)](https://appshunter.io/ios/app/millimeter-pro-screen-ruler/id631810777/reviews)** | — |
| Number of ratings | **109** | — |
| Positive reviews | 57.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 2 months** |
| Monetization | Free | — |
| Best chart rank | **#186** | — |
| Size | 24 MB | 4 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VisTech.Projects LLC](https://appshunter.io/developer/620969851) | [AquaLogic](https://appshunter.io/developer/975030969) |

## What reviewers say

### Millimeter Pro

[App page](https://appshunter.io/ios/app/millimeter-pro-screen-ruler/id631810777)

**Currently charting:** #186 Top Paid · Utilities (US App Store)

This app transforms your device into a versatile measuring tool. It allows for precise measurements of length, area, diameter, and angles using the touchscreen. Easily split objects into equal parts and switch between millimeters and inches for your convenience.

**Highlights:** Touchscreen ruler and tape measure, Measure length, area, diameter, and angles, Split objects into equal parts, Supports millimeters and inches, Estimate radius, Thread pitch gauge

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

**In-app purchases:** none


### AquaDose

[App page](https://appshunter.io/ios/app/aquadose/id6476443397)

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

**In-app purchases:** none


## Frequently asked questions

### Is Millimeter Pro free?

Millimeter Pro costs $3.99, with no in-app purchases.

### Is AquaDose free?

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

### Do Millimeter Pro or AquaDose have ads?

Neither Millimeter Pro nor AquaDose shows ads.

### Which is updated more often, Millimeter Pro or AquaDose?

Millimeter Pro ships an update every 4 months, and AquaDose every 2 months. Most recently, Millimeter Pro was updated on October 24, 2026 and AquaDose on October 25, 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.*