Comparison

Screw Gauge vs C++ Programming Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Screw Gauge

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
Read full description

The screw gauge K12 app explains how to measure the diameter of a sheet or wire with the help of a U-shaped frame of gun metal. Explains all the parts of screw gauge by visual presentation. The instrument is based on the principle of micrometer screw or screw gauge and it is used to measure up to 0.01 mm with greater accuracy. This educational K12 app is the easiest method to get detailed knowledge on how to use the Screw Gauge including adjustment according to the sheet or wire. ==Features== Theory - Explains in detail about Screw Gauge and its measurement process. Parts - Explanation of all the parts of screw gauge in the animation. Experiment - Includes an animation experiment to calculate pitch, least count, zero error and finding the diameter of an object. Practice - Includes an experiment section for the user to measure the diameter of different objects using 3D animation. Quiz - An interactive quiz to check the level of understanding with a score board. Download the Screw Gauge app, and other educational games and apps published by Ajax Media Tech. With the gamified education model, children will be able to absorb and learn the fundamentals and basics with minimal efforts and maximum retention.

About

C++ Programming Pro

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
Read full description

Learn C++ Quickly and Effectively! C++ Programming Pro is your all-in-one solution to master C++ — from beginner to advanced. Whether you're just starting out or looking to sharpen your skills, this app is designed to make learning C++ fast, easy, and interactive. No prior programming knowledge is required. Beginners can build a solid foundation, while experienced developers can use it as a powerful reference packed with code examples. Key Features: • Step-by-step lessons covering all core C++ concepts • Interactive quizzes with 200+ questions—perfect for exams and interviews • Updated content and quizzes with every version Available in 10 Languages: • English, French, German, Italian, Japanese, Portuguese, Russian, Simplified Chinese, Spanish, and Vietnamese — study in your native language! The Pro version offers additional features, including: • Favorites feature: Allows users to save topics and access them quickly. • Full-text search: Enables quick navigation across all app content. Topics Covered: • Data types • Operations • Control structures • Cycles • Arrays • Functions • Scope • Storage classes • Pointers • Functions and pointers • Strings • Structures • Enumerations • Object-oriented programming • Dynamic memory allocation • Advanced OOP • Operator overloading • Inheritance • Generic programming • Preprocessor • Exceptions handling Whether you're preparing for a coding interview or diving into C++ for the first time, C++ Programming Pro gives you the tools to succeed.

Screenshots

Screw Gauge4 screens
C++ Programming Pro4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
Screw Gauge versus C++ Programming Pro: the parameters behind the verdict, then further details
ParameterScrew GaugeC++ Programming Pro
Price$0.99 — better$4.99
Rating2.5 (2 ratings) — better—
Positive reviews0.0% of reviews0.0% of reviews
Number of ratings2 — better—
Update frequencyEvery 31 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS9.0 — better17.0
Further details — not scored
Size43 MB13 MB
Age rating4+4+
Developerwww.ajaxmediatech.comALG Software Lab

Customer experience

Screw Gauge

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

C++ Programming Pro

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Screw Gauge

No in-app purchases

None

C++ Programming Pro

No in-app purchases

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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