# Millimeter Pro vs Calipers Tape Measure

Millimeter Pro and Calipers Tape Measure both sit at 4.4 stars, but that hides the real split: 78% of Calipers Tape Measure's written reviews are positive against 58% of Millimeter Pro's. Calipers Tape Measure also leads on price ($1.99 vs $3.99). Millimeter Pro's advantage is ratings volume (109 vs 26) and iOS requirement (15.0 vs 17.0). On rating, update cadence, ads and in-app purchases there is nothing between them.

Millimeter Pro costs $3.99 and Calipers Tape Measure $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 4.4 for Millimeter Pro against 4.3 for Calipers Tape Measure. Both are backed by a comparable volume of ratings — 109 and 26 respectively. Written reviews are what separate them: 58% of Millimeter Pro's written reviews are positive against 78% of Calipers Tape Measure's.

Millimeter Pro ships an update every 4 months, Calipers Tape Measure every 3 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Millimeter Pro | Calipers Tape Measure |
| --- | --- | --- |
| Price | $3.99 | **$1.99** |
| Rating | **[4.4 (109 ratings)](https://appshunter.io/ios/app/millimeter-pro-screen-ruler/id631810777/reviews)** | [4.3 (26 ratings)](https://appshunter.io/ios/app/calipers-tape-measure/id6445826923/reviews) |
| Number of ratings | **109** | 26 |
| Positive reviews | 57.9% of reviews | **77.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 24 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VisTech.Projects LLC](https://appshunter.io/developer/620969851) | [Jacob Parker](https://appshunter.io/developer/1153284524) |

## What reviewers say

### Millimeter Pro

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

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


### Calipers Tape Measure

[App page](https://appshunter.io/ios/app/calipers-tape-measure/id6445826923)

Measure objects of any size with your phone. Features a 5-meter tape measure for larger items and a precision caliper mode for measuring small objects down to a tenth of a millimeter. Offers highly accurate readings tested across various devices and settings.

**Highlights:** 5-meter tape measure, Precision caliper mode, Measure to 0.1mm accuracy, Spirit level functionality, Accurate measurement testing

**In-app purchases:** none


## Frequently asked questions

### Is Millimeter Pro free?

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

### Is Calipers Tape Measure free?

Calipers Tape Measure costs $1.99, with no in-app purchases.

### Which has better reviews, Millimeter Pro or Calipers Tape Measure?

Millimeter Pro is rated higher. Millimeter Pro averages 4.4 out of 5 from 109 ratings, while Calipers Tape Measure averages 4.3 from 26 ratings.

### Do Millimeter Pro or Calipers Tape Measure have ads?

Neither Millimeter Pro nor Calipers Tape Measure shows ads.

### Which is updated more often, Millimeter Pro or Calipers Tape Measure?

Millimeter Pro ships an update every 4 months, and Calipers Tape Measure every 3 months. Most recently, Millimeter Pro was updated on November 1, 2026 and Calipers Tape Measure on November 3, 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.*