# solAR vs iCoder

The clearest difference is review sentiment: iCoder at 100% against solAR's 38%. iCoder also leads on update cadence (every 6 days vs every 4 months) and price ($1.29 vs $4.99). solAR's advantage is rating (4.9 vs 3.7) and in-app purchases (none vs 1). On ads and monetization model there is nothing between them.

solAR costs $4.99 and iCoder $1.29 up front. iCoder sells 1 one-off in-app purchase. solAR asks for nothing beyond the download.

solAR holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: solAR has 34 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 38% of solAR's written reviews are positive against 100% of iCoder's, so the app with the better star average is not the one people write more warmly about.

solAR ships an update every 4 months, iCoder every 6 days. Both last shipped on November 2, 2026.

## The numbers

| Metric | solAR | iCoder |
| --- | --- | --- |
| Price | $4.99 | **$1.29** |
| Rating | **[4.9 (34 ratings)](https://appshunter.io/ios/app/solar-full-version/id1447421737/reviews)** | [3.7 (6 ratings)](https://appshunter.io/ios/app/icoder-advanced-algorithms/id1458259471/reviews) |
| Number of ratings | **34** | 6 |
| Positive reviews | 37.5% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 days** |
| Monetization | Paid | Paid |
| Size | 43 MB | 10 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac, Vision Pro** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Michael Stoeckli](https://appshunter.io/developer/368788110) | [天从 何](https://appshunter.io/developer/914453386) |

## What reviewers say

### solAR

[App page](https://appshunter.io/ios/app/solar-full-version/id1447421737)

Explore the solar system in 3D and augmented reality. Visualize planets and moons in your environment, adjust their scale, and learn fascinating facts. Ideal for parents, educators, and space enthusiasts.

**Highlights:** 3D solar system exploration, Augmented reality integration, Planet and moon visualization, Adjustable scale for relative size, High-resolution graphics, Educational content

**In-app purchases:** none


### iCoder

[App page](https://appshunter.io/ios/app/icoder-advanced-algorithms/id1458259471)

This app offers a comprehensive learning resource for algorithms and data structures, featuring a large question bank and interview preparation materials. It provides a powerful search engine and allows users to share progress with friends, making complex topics accessible for IT professionals.

**Highlights:** 1000+ algorithm question bank, IT company interview preparation, Powerful search engine, Shareable learning progress, Cross-platform support (iOS, iPadOS, macOS), Keyboard shortcuts for navigation

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip the developer | $0.99 | one-time |


## Frequently asked questions

### Is solAR free?

solAR costs $4.99, with no in-app purchases.

### Is iCoder free?

iCoder costs $1.29, and also offers in-app purchases.

### Which has better reviews, solAR or iCoder?

solAR is rated higher. solAR averages 4.9 out of 5 from 34 ratings, while iCoder averages 3.7 from 6 ratings.

### Do solAR or iCoder have ads?

Neither solAR nor iCoder shows ads.

### Which is updated more often, solAR or iCoder?

solAR ships an update every 4 months, and iCoder every 6 days. Most recently, solAR was updated on November 2, 2026 and iCoder on November 2, 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.*