# Resilience Development Company vs iSOLID

The clearest difference is ads: iSOLID at none against Resilience Development Company's shown. iSOLID also leads on update cadence (daily vs every 13 months). Resilience Development Company's advantage is iOS requirement (15.0 vs 18.0). 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.

Resilience Development Company ships an update every 13 months, iSOLID daily. The most recent releases landed on October 10, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Resilience Development Company | iSOLID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/isolid-learn-programming/id6752113008/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 13 months | **Daily** |
| Monetization | — | Free |
| Size | 62 MB | 22 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Resilience Development Company Ltd](https://appshunter.io/developer/1225590864) | [Nikolai Borisov](https://appshunter.io/developer/1838085350) |

## What reviewers say

### Resilience Development Company

[App page](https://appshunter.io/ios/app/resilience-development-company/id1225590865)

**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 Resilience Development Company free?

Resilience Development Company is free to download, with no in-app purchases.

### Is iSOLID free?

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

### Do Resilience Development Company or iSOLID have ads?

Resilience Development Company shows ads; iSOLID does not.

### Which is updated more often, Resilience Development Company or iSOLID?

Resilience Development Company ships an update every 13 months, and iSOLID daily. Most recently, Resilience Development Company was updated on October 10, 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.*