# 数控计算 vs Fraction Calculator₊

The clearest difference is price: Fraction Calculator₊ at Free against 数控计算's $3.99. 数控计算's advantage is in-app purchases (none vs 1) and update cadence (every 2 weeks vs every 6 weeks). On ads and device support there is nothing between them.

Fraction Calculator₊ is free to download; 数控计算 costs $3.99 up front. Fraction Calculator₊ sells 1 one-off in-app purchase. 数控计算 asks for nothing beyond the download.

数控计算 ships an update every 2 weeks, Fraction Calculator₊ every 6 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 数控计算 | Fraction Calculator₊ |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[5.0 (16 ratings)](https://appshunter.io/ios/app/fraction-calculator/id6745460607/reviews)** |
| Number of ratings | — | **16** |
| Positive reviews | 30.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 6 weeks |
| Monetization | Paid | **Free** |
| Size | 54 MB | 2 MB |
| Requires iOS | **8.0** | 17 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chengdu Miyouguo Technology Co., Ltd.](https://appshunter.io/developer/1483409110) | [Draunt LLC](https://appshunter.io/developer/1067629917) |

## What reviewers say

### 数控计算

[App page](https://appshunter.io/ios/app/id1483409111)

This app assists CNC lathe programmers and machinists with complex calculations and program generation for various threading, grooving, and taper operations. It offers a comprehensive suite of tools to improve efficiency and accuracy in mechanical processing.

**Highlights:** Macro program generation (threading, grooving), Thread machining programs (metric, unified, pipe), Taper calculations and conversions, Chamfer and corner calculations, Tolerance lookup for shafts and holes, Arc tangent point calculation, Various trigonometric functions

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

**In-app purchases:** none


### Fraction Calculator₊

[App page](https://appshunter.io/ios/app/fraction-calculator/id6745460607)

Easily add, subtract, multiply, and divide fractions with instant, step-by-step solutions. This app simplifies complex fraction problems for homework, teaching, or everyday use, offering tools to convert, simplify, and reduce fractions.

**Highlights:** Add, Subtract, Multiply & Divide Fractions, Mixed Number & Improper Fraction Support, Step-by-Step Solutions, Fraction Simplifier & Reducer, Decimal Equivalent Display, Dark Mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fraction Calculator Pro | $2.99 | one-time |


## Frequently asked questions

### Is 数控计算 free?

数控计算 costs $3.99, with no in-app purchases.

### Is Fraction Calculator₊ free?

Fraction Calculator₊ is free to download, with in-app purchases available.

### Do 数控计算 or Fraction Calculator₊ have ads?

Neither 数控计算 nor Fraction Calculator₊ shows ads.

### Which is updated more often, 数控计算 or Fraction Calculator₊?

数控计算 ships an update every 2 weeks, and Fraction Calculator₊ every 6 weeks. Most recently, 数控计算 was updated on October 29, 2026 and Fraction Calculator₊ on October 24, 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.*