# CNC Machinist Calculator vs HemiSync

The clearest difference is review sentiment: HemiSync at 100% against CNC Machinist Calculator's 50%. HemiSync also leads on ratings volume (9 vs 1). CNC Machinist Calculator's advantage is rating (5.0 vs 4.2) and iOS requirement (16.6 vs 18.4). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. CNC Machinist Calculator sells 3 in-app purchases, starting at $0.99 per month and HemiSync sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

CNC Machinist Calculator holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: HemiSync has 9 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of CNC Machinist Calculator's written reviews are positive against 100% of HemiSync's, so the app with the better star average is not the one people write more warmly about.

CNC Machinist Calculator ships an update every 3 weeks, HemiSync every 5 weeks. The most recent releases landed on September 22, 2026 and August 29, 2026 respectively.

## The numbers

| Metric | CNC Machinist Calculator | HemiSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cnc-machinist-calculator/id6605942020/reviews)** | [4.2 (9 ratings)](https://appshunter.io/ios/app/hemisync/id6751762821/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 10 MB | 61 MB |
| Requires iOS | **16.6** | 18.4 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vladislav Zhirnov](https://appshunter.io/developer/1476188065) | [EngineZero](https://appshunter.io/developer/1573141529) |

## What reviewers say

### CNC Machinist Calculator

[App page](https://appshunter.io/ios/app/cnc-machinist-calculator/id6605942020)

This industrial calculator provides CNC programmers and machinists with instant calculations for speeds, feeds, horsepower, coolant flow, tolerances, and G-code patterns. It offers 16 production-ready tools, works offline, and features a user-friendly interface designed for the shop floor. Save and share results for improved efficiency and accuracy.

**Highlights:** Milling Speed & Feed Calculator, Drilling Speed & Feed Calculator, Tolerance & Fit Calculator, G-Code Reference & Generators, Chip Load & Tool Deflection Calculator, Offline functionality, Inch/Metric unit switching

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ADS monthly | $0.99 | per month |
| Full version / year | $2.99 | per year |
| Remove ADS | $4.99 | one-time |


### HemiSync

[App page](https://appshunter.io/ios/app/hemisync/id6751762821)

This app generates binaural beats and isochronic tones to aid in meditation and relaxation. Explore various sound frequencies and pre-set combinations for personal wellness routines, with customizable timers and controls.

**Highlights:** Binaural beat and isochronic tone generation, Customizable frequency ranges (Delta, Theta, Alpha, Beta, Gamma), Pre-configured audio presets, Session timer functionality, Solfeggio frequency options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |


## Frequently asked questions

### Is CNC Machinist Calculator free?

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

### Is HemiSync free?

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

### Which has better reviews, CNC Machinist Calculator or HemiSync?

CNC Machinist Calculator is rated higher. CNC Machinist Calculator averages 5.0 out of 5 from 1 ratings, while HemiSync averages 4.2 from 9 ratings.

### Do CNC Machinist Calculator or HemiSync have ads?

Neither CNC Machinist Calculator nor HemiSync shows ads.

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

CNC Machinist Calculator ships an update every 3 weeks, and HemiSync every 5 weeks. Most recently, CNC Machinist Calculator was updated on September 22, 2026 and HemiSync on August 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.*