# Drill Bit Converter vs Material Removal Rate

The clearest difference is ads: Drill Bit Converter at none against Material Removal Rate's shown. Drill Bit Converter also leads on price ($0.99 vs $1.99) and iOS requirement (13.0 vs 16.2). Material Removal Rate's advantage is update cadence (every 8 months vs every 54 months). On in-app purchases and device support there is nothing between them.

Drill Bit Converter costs $0.99 and Material Removal Rate $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Drill Bit Converter ships an update every 54 months, Material Removal Rate every 8 months. The most recent releases landed on September 21, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | Drill Bit Converter | Material Removal Rate |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 54 months | **Every 8 months** |
| Size | 2 MB | 3 MB |
| Requires iOS | **13.0** | 16.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dohmann Engineering Services](https://appshunter.io/developer/401682475) | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) |

## What reviewers say

### Drill Bit Converter

[App page](https://appshunter.io/ios/app/drill-bit-converter/id1552080952)

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

**In-app purchases:** none


### Material Removal Rate

[App page](https://appshunter.io/ios/app/material-removal-rate/id6503178665)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Drill Bit Converter free?

Drill Bit Converter costs $0.99, with no in-app purchases.

### Is Material Removal Rate free?

Material Removal Rate costs $1.99, with no in-app purchases.

### Do Drill Bit Converter or Material Removal Rate have ads?

Material Removal Rate shows ads; Drill Bit Converter does not.

### Which is updated more often, Drill Bit Converter or Material Removal Rate?

Drill Bit Converter ships an update every 54 months, and Material Removal Rate every 8 months. Most recently, Drill Bit Converter was updated on September 21, 2026 and Material Removal Rate on June 24, 2026.

---

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