# Quickgrind vs CNC Machinist Calculator App

The clearest difference is in-app purchases: Quickgrind at none against CNC Machinist Calculator App's 3. CNC Machinist Calculator App's advantage is update cadence (every 5 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CNC Machinist Calculator App sells 3 in-app purchases, starting at $1.99 per month. Quickgrind asks for nothing beyond the download.

Quickgrind ships an update every 5 months, CNC Machinist Calculator App every 5 weeks. The most recent releases landed on October 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Quickgrind | CNC Machinist Calculator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/cnc-machinist-calculator-app/id6781401023/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 147 MB | 18 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Quickgrind Limited](https://appshunter.io/developer/1703636457) | [Blue Mantiq LLC](https://appshunter.io/developer/1893894486) |

## What reviewers say

### Quickgrind

[App page](https://appshunter.io/ios/app/quickgrind/id6462920546)

**Features:** macOS Compatibility

**In-app purchases:** none


### CNC Machinist Calculator App

[App page](https://appshunter.io/ios/app/cnc-machinist-calculator-app/id6781401023)

This app provides instant calculations for CNC machining, including speeds, feeds, and thread data. It offers a comprehensive set of tools for milling, turning, drilling, and tapping, with transparently shown formulas and shop math functions. Designed for the shop floor, it works offline with large, glove-friendly controls and supports both imperial and metric units.

**Highlights:** Instant RPM and feed rate calculation, Milling, turning, drilling, and tapping tools, Thread and 3-wire measurement calculators, Bolt circle and triangle solvers, G & M Code reference, Offline functionality, Imperial and metric support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $9.99 | per year |
| Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is Quickgrind free?

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

### Is CNC Machinist Calculator App free?

CNC Machinist Calculator App is free to download, with in-app purchases available.

### Do Quickgrind or CNC Machinist Calculator App have ads?

Neither Quickgrind nor CNC Machinist Calculator App shows ads.

### Which is updated more often, Quickgrind or CNC Machinist Calculator App?

Quickgrind ships an update every 5 months, and CNC Machinist Calculator App every 5 weeks. Most recently, Quickgrind was updated on October 9, 2026 and CNC Machinist Calculator App on October 31, 2026.

---

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