# DrillAR vs Quick Conversion Units

The clearest difference is price: DrillAR at Free against Quick Conversion Units's $4.99. DrillAR also leads on update cadence (every 4 months vs every 44 months) and iOS requirement (6.0 vs 11.0). Quick Conversion Units's advantage is rating (5.0 vs 4.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.

DrillAR is free to download; Quick Conversion Units costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Quick Conversion Units holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

DrillAR ships an update every 4 months, Quick Conversion Units every 44 months. The most recent releases landed on October 7, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | DrillAR | Quick Conversion Units |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/drillar/id820710413/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/quick-conversion-units/id1159050734/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 44 months |
| Monetization | **Free** | Paid |
| Size | 780 MB | 32 MB |
| Requires iOS | **6.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Schlumberger Technology Corporation](https://appshunter.io/developer/380098290) | [bader alshammari](https://appshunter.io/developer/858126240) |

## What reviewers say

### DrillAR

[App page](https://appshunter.io/ios/app/drillar/id820710413)

Explore a life-sized, 3D Schlumberger integrated drilling system. Examine intricate components of bottom-hole assemblies and gain insight into the latest well-drilling technologies used globally.

**Highlights:** Life-sized 3D drilling system model, Examine BHA components, Insight into drilling technologies, Featured drilling components: Drill Bits, Drive Systems, LWD, Hole opening

**Features:** macOS Compatibility

**In-app purchases:** none


### Quick Conversion Units

[App page](https://appshunter.io/ios/app/quick-conversion-units/id1159050734)

This app offers a streamlined conversion experience for oilfield professionals. It provides over 1000 conversion types across 19 categories, all accessible on a single screen for maximum efficiency and accuracy.

**Highlights:** Single-screen conversions, 19 conversion categories, 1000+ conversion types, Oilfield specific units, Increases productivity, Enhances accuracy

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DrillAR free?

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

### Is Quick Conversion Units free?

Quick Conversion Units costs $4.99, with no in-app purchases.

### Which has better reviews, DrillAR or Quick Conversion Units?

Quick Conversion Units is rated higher. DrillAR averages 4.0 out of 5 from 1 ratings, while Quick Conversion Units averages 5.0 from 1 ratings.

### Do DrillAR or Quick Conversion Units have ads?

Neither DrillAR nor Quick Conversion Units shows ads.

### Which is updated more often, DrillAR or Quick Conversion Units?

DrillAR ships an update every 4 months, and Quick Conversion Units every 44 months. Most recently, DrillAR was updated on October 7, 2026 and Quick Conversion Units on September 29, 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.*