# Grindcalculator vs CutMatryx

The clearest difference is price: CutMatryx at Free against Grindcalculator's $6.99. Grindcalculator's advantage is in-app purchases (none vs 1) and update cadence (every 4 days vs every 8 months). On ads, device support and iOS requirement there is nothing between them.

CutMatryx is free to download; Grindcalculator costs $6.99 up front. CutMatryx sells 1 one-off in-app purchase. Grindcalculator asks for nothing beyond the download.

Grindcalculator ships an update every 4 days, CutMatryx every 8 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | Grindcalculator | CutMatryx |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/grindcalculator/id1660469778/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 84.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 8 months |
| Monetization | Paid | — |
| Size | 9 MB | 30 MB |
| Requires iOS | **26.0** | 26.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [RoWo UG](https://appshunter.io/developer/1660469780) | [Eugen Muehl](https://appshunter.io/developer/984995142) |

## What reviewers say

### Grindcalculator

[App page](https://appshunter.io/ios/app/grindcalculator/id1660469778)

This tool simplifies knife sharpening by calculating the correct angle, eliminating the need for manual marking. Save custom sharpening angles and grinding wheel dimensions for consistent results across various brands and types of sharpening tools.

**Highlights:** Precise angle calculation, Eliminates manual marking, Save custom angles, Save grinding wheel dimensions, Supports all grinder brands, Offline functionality

**In-app purchases:** none


### CutMatryx

[App page](https://appshunter.io/ios/app/cutmatryx-cutting-planner/id6450856808)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CutMatryx Pro | $4.99 | one-time |


## Frequently asked questions

### Is Grindcalculator free?

Grindcalculator costs $6.99, with no in-app purchases.

### Is CutMatryx free?

CutMatryx is free to download, with in-app purchases available.

### Do Grindcalculator or CutMatryx have ads?

Neither Grindcalculator nor CutMatryx shows ads.

### Which is updated more often, Grindcalculator or CutMatryx?

Grindcalculator ships an update every 4 days, and CutMatryx every 8 months. Most recently, Grindcalculator was updated on November 3, 2026 and CutMatryx on November 3, 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.*