# Screw Gauge vs C++ Programming Pro

The clearest difference is update cadence: C++ Programming Pro at every 2 months against Screw Gauge's every 31 months. Screw Gauge's advantage is price ($0.99 vs $4.99) and iOS requirement (9.0 vs 17.0). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Screw Gauge costs $0.99 and C++ Programming Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Screw Gauge ships an update every 31 months, C++ Programming Pro every 2 months. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Screw Gauge | C++ Programming Pro |
| --- | --- | --- |
| Price | **$0.99** | $4.99 |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/screw-gauge/id1061872321/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 43 MB | 13 MB |
| Requires iOS | **9.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) | [ALG Software Lab](https://appshunter.io/developer/1650561236) |

## What reviewers say

### Screw Gauge

[App page](https://appshunter.io/ios/app/screw-gauge/id1061872321)

Learn to accurately measure the diameter of sheets or wires using a virtual screw gauge. This app visually explains all parts and demonstrates measurement processes with interactive animations and practice experiments. Test your knowledge with a quiz.

**Highlights:** Detailed theory on screw gauge measurement, Animated explanation of all parts, Interactive experiment for pitch and zero error, 3D animation practice for diameter measurement, Interactive quiz with score tracking

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

**In-app purchases:** none


### C++ Programming Pro

[App page](https://appshunter.io/ios/app/c-plus-plus-programming-pro/id6738890071)

Master C++ programming with interactive lessons, quizzes, and comprehensive code examples. This app caters to both beginners and experienced developers, offering a structured learning path and a handy reference tool.

**Highlights:** Step-by-step C++ lessons, Interactive quizzes with 200+ questions, Code examples and reference, Favorites and full-text search (Pro), Covers all core and advanced C++ topics, Available in 10 languages

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Screw Gauge free?

Screw Gauge costs $0.99, with no in-app purchases.

### Is C++ Programming Pro free?

C++ Programming Pro costs $4.99, with no in-app purchases.

### Do Screw Gauge or C++ Programming Pro have ads?

Neither Screw Gauge nor C++ Programming Pro shows ads.

### Which is updated more often, Screw Gauge or C++ Programming Pro?

Screw Gauge ships an update every 31 months, and C++ Programming Pro every 2 months. Most recently, Screw Gauge was updated on October 3, 2026 and C++ Programming Pro on October 12, 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.*