# All Units vs DRFT MRKS

The clearest difference is ads: DRFT MRKS at none against All Units's shown. DRFT MRKS also leads on monetization model (free vs ad-supported). All Units's advantage is update cadence (every 3 days vs every 4 weeks) and iOS requirement (15.0 vs 18.0). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for All Units against 5.0 for DRFT MRKS. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

All Units ships an update every 3 days, DRFT MRKS every 4 weeks. The most recent releases landed on August 30, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | All Units | DRFT MRKS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/all-units/id1663552827/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/drft-mrks/id6741070099/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 4 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 7 MB | 49 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vladyslav Yarmak](https://appshunter.io/developer/1456545549) | [Tymor Marine Ltd](https://appshunter.io/developer/1769206109) |

## What reviewers say

### All Units

[App page](https://appshunter.io/ios/app/all-units/id1663552827)

This free utility app simplifies unit conversions for various measurements, saving time for technicians, students, and everyday users. It offers a wide range of conversion categories to make calculations easy and accurate.

**Highlights:** Unit conversion, Volume, Length, Mass, Temperature, Velocity, Time

**Features:** Vision Pro support

**In-app purchases:** none


### DRFT MRKS

[App page](https://appshunter.io/ios/app/drft-mrks/id6741070099)

This application uses AI and deep learning to accurately measure a vessel's draft from a short HD video. It aims to provide a verifiable source of truth for calculating vessel displacement, improving accuracy in determining loaded cargo and equipment.

**Highlights:** AI/Deep Learning technology, Measures vessel draft from video, Improves draft reading accuracy, Verifiable source of truth, Calculates vessel displacement

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is All Units free?

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

### Is DRFT MRKS free?

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

### Which has better reviews, All Units or DRFT MRKS?

All Units and DRFT MRKS are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do All Units or DRFT MRKS have ads?

All Units shows ads; DRFT MRKS does not.

### Which is updated more often, All Units or DRFT MRKS?

All Units ships an update every 3 days, and DRFT MRKS every 4 weeks. Most recently, All Units was updated on August 30, 2026 and DRFT MRKS on August 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*