# Drill Bit Converter vs Cove Angle

The clearest difference is price: Cove Angle at Free against Drill Bit Converter's $0.99. Drill Bit Converter's advantage is iOS requirement (13.0 vs 17.2). On update cadence, ads, in-app purchases and device support there is nothing between them.

Cove Angle is free to download; Drill Bit Converter costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Drill Bit Converter ships an update every 54 months, Cove Angle every 30 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Drill Bit Converter | Cove Angle |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cove-angle/id6476451736/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 54 months | **Every 30 months** |
| Monetization | — | Free |
| Size | 2 MB | 3 MB |
| Requires iOS | **13.0** | 17.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Dohmann Engineering Services](https://appshunter.io/developer/401682475) | [Red Trillium Studios Ltd](https://appshunter.io/developer/1437466387) |

## 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


### Cove Angle

[App page](https://appshunter.io/ios/app/cove-angle/id6476451736)

This app simplifies complex calculations by automatically crunching numbers and saving your past results. Easily access and reapply previous calculations, and switch between metric and standard units. Syncs across devices with iCloud.

**Highlights:** Automatic number crunching, Save past calculations, Cross-device iCloud sync, Delete and reapply calculations, Metric and standard unit switching

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Drill Bit Converter free?

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

### Is Cove Angle free?

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

### Do Drill Bit Converter or Cove Angle have ads?

Neither Drill Bit Converter nor Cove Angle shows ads.

### Which is updated more often, Drill Bit Converter or Cove Angle?

Drill Bit Converter ships an update every 54 months, and Cove Angle every 30 months. Most recently, Drill Bit Converter was updated on September 21, 2026 and Cove Angle on September 10, 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.*