# 龙星智能终端 vs Thread Calculator

The clearest difference is ads: 龙星智能终端 at none against Thread Calculator's shown. 龙星智能终端 also leads on update cadence (every 6 weeks vs every 18 months) and iOS requirement (12.0 vs 15.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

龙星智能终端 ships an update every 6 weeks, Thread Calculator every 18 months. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 龙星智能终端 | Thread Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (14 ratings)](https://appshunter.io/ios/app/thread-calculator/id1559560290/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 18 months |
| Monetization | — | Ad-supported |
| Size | 40 MB | 25 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [忠和 陈](https://appshunter.io/developer/1471089654) | [GSR Gustav Stursberg GmbH](https://appshunter.io/developer/1559560292) |

## What reviewers say

### 龙星智能终端

[App page](https://appshunter.io/ios/app/id1512090246)

**Features:** macOS Compatibility

**In-app purchases:** none


### Thread Calculator

[App page](https://appshunter.io/ios/app/thread-calculator/id1559560290)

This app provides a quick and easy way to calculate thread dimensions for various units, including tap hole sizes and bolt specifications. It helps metalworkers find precise measurements for internal and external threads without consulting tables.

**Highlights:** Thread cutting calculator for multiple units, Cold forming calculator, Thread repair calculator, Tap hole and bolt diameter calculation, Saves time compared to tables

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 龙星智能终端 free?

龙星智能终端 is free to download, with no in-app purchases.

### Is Thread Calculator free?

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

### Do 龙星智能终端 or Thread Calculator have ads?

Thread Calculator shows ads; 龙星智能终端 does not.

### Which is updated more often, 龙星智能终端 or Thread Calculator?

龙星智能终端 ships an update every 6 weeks, and Thread Calculator every 18 months. Most recently, 龙星智能终端 was updated on October 25, 2026 and Thread 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.*