UpSkill vs iSOLID
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
UpSkill
Learn programming from basic to advanced concepts with detailed tutorials, interview preparation, and interactive quizzes. Explore a wide range of programming and markup languages with demo programs and fun facts.
- Detailed programming tutorials
- Programming interview questions and answers
- Interactive quizzes with difficulty levels
- Demo programs with examples
- Syntax reference for all programs
- Facts about programming and technology
- Support for numerous programming languages
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Whether you want to learn Programming as a Hobby, for School/College, or want to build a Career in the field of Software Engineering, this Tutorial suits your needs. UpSkill Tutorial covers everything from the Basics of Programming to Advanced Concepts like Data Structures. It also comes with a sleek and interactive graphical user interface. Features: 1. Detailed Tutorial - A to Z of Programming has been explained in detail. 2. Interview Questions - Questions asked in Programming Interviews are given with answers. 3. Quiz - A quiz with different difficulty levels to test your understanding. 4. Demo Programs - Demo Programs with examples to help you visualize what you've learned. 5. Syntax - Syntax of all the programs is presented in an ordered manner. 6. Facts - Fun facts about programming and technology Programming languages: - Ada - C - C++ - C# - Dart - Go - Java - Javascript - Kotlin - Lua - MATLAB - Objective-C - Perl - PHP - Python - R - Ruby. - Rust - Scala - Swift - Typescript - Visual Basic Markup languages: - HTML - CSS - XML. This app is brought to you by the company OnePercent, based in Bangalore, India. Website: www.OnePercent.club LinkedIn: www.Linkedin.Com/Company/Onepercent-Club/
iSOLID
Master programming fundamentals, Swift, and iOS development with clear explanations, code examples, and interactive quizzes. Track your progress and prepare for interviews with this comprehensive learning tool.
- Swift & iOS development
- SOLID principles explained
- Programming concepts
- Interactive quizzes
- Progress tracking
- Interview preparation
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iSOLID Read • Learn • Practice Learn programming, strengthen your Swift and iOS knowledge, and understand the principles behind clean, maintainable code. Whether you're starting your programming journey, preparing for an iOS interview, or strengthening your professional skills, iSOLID helps you learn through clear explanations, practical code examples, quizzes, and progress tracking. Key Features: • Swift & iOS – Learn core Swift concepts and essential iOS development topics. • SOLID Principles – Understand each principle with clear explanations and practical examples. • Programming Principles – Explore clean code, OOP, architecture, design concepts, and more. • Interactive Quizzes – Test your knowledge and reinforce what you've learned. • Detailed Results – Review your answers, identify mistakes, and understand the correct solutions. • Progress Tracking – Follow your learning progress, completed topics, statistics, and streaks. • Self-Paced Learning – Learn whenever and wherever it works for you. • Interview Preparation – Review important Swift and iOS concepts commonly discussed in technical interviews. From programming fundamentals to Swift, SOLID, architecture, and iOS engineering, iSOLID brings your learning materials together in one place. Download iSOLID and keep building your programming skills.
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Verdict
The clearest difference is rating: iSOLID at 5.0 against UpSkill's 4.5. iSOLID also leads on update cadence (daily vs every 4 months). UpSkill's advantage is iOS requirement (12.0 vs 18.0). On price, review sentiment, ratings volume and ads 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
iSOLID holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
UpSkill ships an update every 4 months, iSOLID daily. The most recent releases landed on October 2, 2026 and October 17, 2026 respectively.
| Parameter | UpSkill | iSOLID |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 4 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 33 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | OnePercent | Nikolai Borisov |
Customer experience
UpSkill
iSOLID
In-app purchases
UpSkill
No in-app purchases
iSOLID
No in-app purchases









