Comparison

rubyi$ vs Quantum Programming Compiler

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

Head to head
About

rubyi$

Learn, run, and share Ruby scripts on your iOS device. Features include code autocompletion, syntax highlighting, and a built-in browser for learning materials. Customize your coding environment and share your creations easily.

Highlights
  • Code autocompletion
  • Syntax highlighting
  • Built-in browser
  • File system support
  • Customizable interface
  • Code sharing
Features
Read full description

This is an ios ruby app,you can learn,run,share ruby script. Features : Autocomplate. Auto Indent. Code color. In(the built-in browser or the txt editor),Select the text to run. Horizontal screen development. Code templates,the contents of the new file is copy from contents of the template file. *You can enter ruby code by keyboard, and then you can execut the ruby code,support the gets function. *You can use the file system to supports txt, pdf, chm, mp3,m4v,zip, gif, png, html, rb ,doc... *You can adjust the code color and font size , and support to move the cursor left and right and up and down , easy to read and write. *You can find learning materials by the built-in browser . *You can save ruby code and learning materials, and can be modified to the save file and delete the save file . *You can control the background image and color, and execution voice , background animation, text color and shadow, switch interface animation , the number and the order of the main interface of the tab bar to create your learning software. *You can Learn ruby knowledge , the system provides some basic learning materials . *You can use ruby code or learning materials to generate two-dimensional code , for easy sharing . *You can share code by Email,Weibo,Twitter,Facebook. *You can use the counter,light in the Setting tab.

About

Quantum Programming Compiler

Learn and execute quantum computing code directly on your mobile device. This app offers tutorials for beginners and professionals, a code editor with syntax highlighting, and the ability to compile and run quantum programs using Python 3.7.

Highlights
  • Compile and run quantum programs
  • Syntax highlighting editor
  • Custom keyboard for quantum characters
  • Plotting and graphing support
  • Easy and advanced tutorials
  • Open, save, import, and share files
Read full description

Write quantum codes directly on your iPhone, iPad and iPod Touch! This app is ideal for learning and testing code snippets! Quantum computing is touted as the next big thing in the computer revolution! The app allows you to learn and program in quantum! It is intended for anybody who has at least some basic programming skills. The tutorials are designed for beginners as well as professionals. The app uses the QISKit SDK and simulator (https://github.com/Qiskit/) licensed under Apache 2.0. Coding is done in Python 3.7. Features: - Compile and run your quantum program - Supports plotting and graphing - View program output or detailed error - Custom keyboard for easy input of frequently used characters - Optimized for connecting with external physical/bluetooth keyboard - Source code editor with syntax highlighting and line numbers - Open, save, import and share source files. - Easy and advanced tutorials Limitations: - Internet connection is required for compilation - Maximum program running time is 20s - One file can be run at a time - It is recommended to use no more than 8 qubits GET FULL ACCESS Upgrade to a Premium Membership and Receive the Following Ongoing Value: • No ads • Unlimited plots • Install packages • Latest interpreters If you choose to purchase a subscription, payment will be charged to your iTunes account, and your account will be charged within 24-hours prior to the end of the free trial or current period. Subscription with a free trial period will automatically renew to a paid subscription. Any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period. You can cancel the automatic renewal of your subscription at any time by going to your settings in the iTunes store after purchase. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the free service. Terms & Conditions: https://kappsmart.com/quantumcompiler/terms.html Privacy Policy: https://kappsmart.com/quantumcompiler/privacy_policy.html

Screenshots

rubyi$4 screens
Quantum Programming Compiler4 screens

Verdict

The call

The clearest difference is price: Quantum Programming Compiler at Free against rubyi$'s $2.99. Quantum Programming Compiler also leads on update cadence (monthly vs every 3 months) and iOS requirement (12.0 vs 14.0). rubyi$'s advantage is rating (4.4 vs 3.4) and in-app purchases (none vs 4). On ratings volume and device support 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

Quantum Programming Compiler is free to download; rubyi$ costs $2.99 up front. Quantum Programming Compiler sells 4 in-app purchases, starting at $2.99 per month. rubyi$ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

rubyi$ holds the better App Store score, 4.4 against 3.4. Both are backed by a comparable volume of ratings — 11 and 8 respectively. Written reviews point the same way: 78% of rubyi$'s written reviews are positive against 67% of Quantum Programming Compiler's.

UpkeepUpdate frequency

rubyi$ ships an update every 3 months, Quantum Programming Compiler monthly. The most recent releases landed on August 13, 2026 and September 23, 2026 respectively.

Scorecard8 real differences · 2 level
rubyi$ versus Quantum Programming Compiler: the parameters behind the verdict, then further details
Parameterrubyi$Quantum Programming Compiler
Price$2.99Free — better
Rating4.4 (11 ratings) — better3.4 (8 ratings)
Positive reviews77.8% of reviews — better66.7% of reviews
Number of ratings11 — better8
Update frequencyEvery 3 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPad, iPod
Requires iOS14.012.0 — better
Further details — not scored
Size46 MB25 MB
Age rating17+4+
Developer小文 黄Ketan Appa

Customer experience

rubyi$

All ratings11 ratings
Positive81.8%
Neutral9.1%
Negative9.1%
Written reviews27 reviews
Positive77.8%
Neutral0.0%
Negative22.2%

Quantum Programming Compiler

All ratings8 ratings
Positive62.5%
Neutral0.0%
Negative37.5%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

rubyi$

No in-app purchases

4 purchases

Quantum Programming Compiler

Subscriptions3
  • 1 Month Subscription$2.991 Month
  • 6 Months$11.996 Months
  • 1 Year$17.991 Year
One-time1
  • Upgrade$6.99

Questions

Is rubyi$ free?
rubyi$ costs $2.99, with no in-app purchases.
Is Quantum Programming Compiler free?
Quantum Programming Compiler is free to download, with in-app purchases available.
Which has better reviews, rubyi$ or Quantum Programming Compiler?
rubyi$ is rated higher. rubyi$ averages 4.4 out of 5 from 11 ratings, while Quantum Programming Compiler averages 3.4 from 8 ratings.
Do rubyi$ or Quantum Programming Compiler have ads?
Quantum Programming Compiler shows ads; rubyi$ does not.
Which is updated more often, rubyi$ or Quantum Programming Compiler?
rubyi$ ships an update every 3 months, and Quantum Programming Compiler monthly. Most recently, rubyi$ was updated on August 13, 2026 and Quantum Programming Compiler on September 23, 2026.

Other comparisons