# UpSkill vs iSOLID

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.

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.

## The numbers

| Metric | UpSkill | iSOLID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (2 ratings)](https://appshunter.io/ios/app/upskill-coding-simplified/id1665660733/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/isolid-learn-programming/id6752113008/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free | Free |
| Size | 33 MB | 22 MB |
| Requires iOS | **12.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [OnePercent](https://appshunter.io/developer/1536020418) | [Nikolai Borisov](https://appshunter.io/developer/1838085350) |

## What reviewers say

### UpSkill

[App page](https://appshunter.io/ios/app/upskill-coding-simplified/id1665660733)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none


### iSOLID

[App page](https://appshunter.io/ios/app/isolid-learn-programming/id6752113008)

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.

**Highlights:** Swift & iOS development, SOLID principles explained, Programming concepts, Interactive quizzes, Progress tracking, Interview preparation

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

**In-app purchases:** none


## Frequently asked questions

### Is UpSkill free?

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

### Is iSOLID free?

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

### Which has better reviews, UpSkill or iSOLID?

iSOLID is rated higher. UpSkill averages 4.5 out of 5 from 2 ratings, while iSOLID averages 5.0 from 1 ratings.

### Do UpSkill or iSOLID have ads?

Neither UpSkill nor iSOLID shows ads.

### Which is updated more often, UpSkill or iSOLID?

UpSkill ships an update every 4 months, and iSOLID daily. Most recently, UpSkill was updated on October 2, 2026 and iSOLID on October 17, 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.*