# Millimeters to Centimeters vs CNVRT

The clearest difference is update cadence: CNVRT at every 2 weeks against Millimeters to Centimeters's every 9 months. Millimeters to Centimeters's advantage is price ($0.99 vs $4.99) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Millimeters to Centimeters costs $0.99 and CNVRT $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Millimeters to Centimeters ships an update every 9 months, CNVRT every 2 weeks. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Millimeters to Centimeters | CNVRT |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | — | **[4.5 (19 ratings)](https://appshunter.io/ios/app/cnvrt-si-unit-conversion-tool/id1607762263/reviews)** |
| Number of ratings | — | **19** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 weeks** |
| Monetization | — | Paid |
| Size | 7 MB | 1 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Thomas Pelster](https://appshunter.io/developer/429002805) | [Pascal Andraos](https://appshunter.io/developer/1328885685) |

## What reviewers say

### Millimeters to Centimeters

[App page](https://appshunter.io/ios/app/millimeters-to-centimeters/id1065076235)

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

**In-app purchases:** none


### CNVRT

[App page](https://appshunter.io/ios/app/cnvrt-si-unit-conversion-tool/id1607762263)

Instantly convert over 200 units across 20 measurement categories, from weight and length to temperature and data storage. This tool simplifies metric and Imperial conversions for STEM professionals and everyday users alike.

**Highlights:** Over 200 units supported, 20 measurement categories, Instant conversions, Metric and Imperial units, Optimized for Apple devices, STEM and everyday use

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Millimeters to Centimeters free?

Millimeters to Centimeters costs $0.99, with no in-app purchases.

### Is CNVRT free?

CNVRT costs $4.99, with no in-app purchases.

### Do Millimeters to Centimeters or CNVRT have ads?

Neither Millimeters to Centimeters nor CNVRT shows ads.

### Which is updated more often, Millimeters to Centimeters or CNVRT?

Millimeters to Centimeters ships an update every 9 months, and CNVRT every 2 weeks. Most recently, Millimeters to Centimeters was updated on October 9, 2026 and CNVRT on October 11, 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.*