Comparison

solAR vs iCoder

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

Head to head
About

solAR

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
Read full description

Introducing solAR, the revolutionary solar system exploration app that combines cutting-edge 3D and augmented reality technology to bring the wonders of the solar system right to your doorstep. Whether you're a parent looking for a new and exciting way to engage your children, an educator seeking to enhance your lessons, or simply someone with a passion for space and science, solAR is the perfect app for you. With solAR, you can explore the sun, all the planets and moons of our solar system in stunning high-resolution graphics, and place them in your real-world environment using augmented reality. Imagine being able to see Jupiter towering over your backyard or placing Saturn's rings on a football field. With solAR, you can do just that. Our app uses the camera on your device to superimpose digital content onto the real world, creating an immersive and interactive experience that is like nothing you've ever seen before. One of the unique features of solAR is the ability to adjust the scale of the distances between the planets and moons, allowing you to see how large or small they are in relation to each other. This feature is particularly useful for educational purposes, as it allows students to better understand the relative size of the planets and moons in the solar system. But solAR is more than just a fun and interactive way to explore the solar system, it's also an educational tool. Our app includes a wealth of information about each planet and moon. Children and students can learn about the solar system in a way that is both interactive and engaging. Here are some examples of how solAR can be used in an augmented reality setting: - As a parent, you can use solAR to take a virtual field trip with your child to the planets and moons, allowing them to see the solar system in a new and exciting way. Place the planets in your garden and let your children learn about the solar system while playing outside. Compare the relative size of the planets and moons by adjusting the scale. - As an educator, you can use solAR to enhance your lessons and bring the solar system to life in the classroom. Place the solar system on a football field and let your students learn about the relative size of the planets, moons and the sun. Use the scale adjustment feature to show how far apart the planets are from each other. - As a space enthusiast, you can use solAR to explore the solar system in your own backyard or any outdoor space. Place the planets and moons in any location you want and experience the solar system in a whole new way. Adjust the scale to see the relative size of the planets and moons. solAR is designed with an intuitive user interface, making it easy for anyone to navigate and explore. With simple gestures, you can zoom in and out, rotate, and navigate through the solar system. Our app also features beautiful high-resolution graphics, ensuring that every detail of the solar system is captured in stunning clarity. So why wait? Download solAR today and experience the solar system in a whole new way. With solAR, learning about the solar system has never been more interactive, engaging and fun! Don't miss out on this marvellous opportunity. Download solAR now and start your journey today!

About

iCoder

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
Read full description

Eight years. One mission: help you master algorithms without distractions. iCoder is a LeetCode practice app trusted since day one by learners preparing for technical interviews. Version 8.0 marks our 8th anniversary with a complete SwiftUI rebuild: faster, cleaner, and ready for iOS 16 and later. Still 1000+ classic problems, still offline, still no ad popups. WHY iCODER - Born for interview prep: company-tagged problems mirror what top firms often ask - Organized by difficulty, tags, and companies so you can drill weak spots - Offline-first: the library lives on your device; browse, quiz, and widgets work without Wi-Fi - Eight years of polish: now with a modern SwiftUI interface and rich widgets BROWSE AND SEARCH - Numbered list or compact grid with adjustable columns on iPhone and iPad - Filter by Easy, Medium, Hard, VIP, favorites, and learning status - Optional Favorites and Recently Viewed at the top of the Problems tab - Search by problem ID, title, content, tag, or company - Swipe and context menus for favorites and status CATEGORIES - Algorithm tags from arrays to dynamic programming - Company collections for targeted interview practice - Smooth flow from filters to detail PROBLEM DETAIL - Bilingual Chinese and English descriptions - Adjustable font size - Unlearned, Learned, and Mastered tracking - Toolbar favorites and solution links when online - Share a long image for notes or study groups - Previous and next problem navigation DAILY QUIZ AND REVIEW - Ten questions per day by difficulty, tag, or company - Today score, best score, and streak - Wrong Book with one-tap return to full problem detail - Reshuffle for extra practice the same day LEARNING TRACKING - Favorites and Recently Viewed lists in Settings - One-tap clear all recents - Stats for favorites, learned rate, and mastered rate WIDGETS (iOS 16 AND LATER) - Daily Problem, Difficulty Glance, Daily Quiz, Favorites, Wrong Book, Learning Progress, Company Spotlight - Lock Screen and StandBy compact layouts; deep-link into the app - On iOS 17 and later: shuffle from Daily Problem and Company Spotlight Home Screen widgets without opening the app - In-app Widget Guide with FAQ PERSONALIZATION - Sixteen accent colors; Light, Dark, or System - Widget backgrounds can match your theme - English, Simplified Chinese, Traditional Chinese, or Follow System - List or grid layout with custom column count SHORTCUTS - Up to four Home Screen quick actions on long-press - Deep links from widgets and shortcuts - iPad and Mac keyboard shortcuts SUPPORT - Rate, email feedback, share the app, tip the developer - More apps from the developer - Optional App Store update reminder OUR PROMISE SINCE YEAR ONE - No ad popups inside the app - Offline problem library - Your time is precious; we respect it Requires iOS 16.0 or later. Download iCoder 8.0 and celebrate eight years of practice with us.

Screenshots

solAR4 screens
iCoder4 screens

Verdict

The call

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.

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

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard8 real differences · 2 level
solAR versus iCoder: the parameters behind the verdict, then further details
ParametersolARiCoder
Price$4.99$1.29 — better
Rating4.9 (34 ratings) — better3.7 (6 ratings)
Positive reviews37.5% of reviews100.0% of reviews — better
Number of ratings34 — better6
Update frequencyEvery 4 monthsEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidPaid
DevicesiPhone, iPad, iPod, Mac, Vision Pro — betteriPhone, iPad, Mac
Requires iOS14.0 — better16.0
Further details — not scored
Size43 MB10 MB
Age rating4+4+
DeveloperMichael Stoeckli天从 何

Customer experience

solAR

All ratings33 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive37.5%
Neutral25.0%
Negative37.5%

iCoder

All ratings6 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

solAR

No in-app purchases

1 purchases

iCoder

One-time1
  • Tip the developer$0.99

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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