Comparison

Quantum Programming Compiler vs Occam SI

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

Head to head
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
Features
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

About

Occam SI

Features
Read full description

Make sense of a difficult question with Occam's Razor. Build an AI-assisted mind map, examine the assumptions behind it, and decide what to investigate next. Use it to plan a project, compare options, explore a research question, or structure what you are learning. SEE HOW IT WORKS Explore a prepared example before signing in. Tap through the factors behind a release decision, challenge an assumption, and see a practical next step. The example works without a cloud request. MAP YOUR QUESTION Start with a rough sentence. Organize factors, constraints, unknowns, and relationships in a connected graph. Open individual nodes to explore the details or add your own notes. TEST YOUR THINKING Look for weak assumptions, missing information, and cases that could change your conclusion. Import source material and keep track of what has actually been tested. AI suggestions are not verified evidence. ASK ABOUT YOUR STUDY Chat with AI using the context of your map. Review proposed additions before adding them to the graph. TURN INSIGHT INTO ACTION Develop possible solutions, research tests, small experiments, or a written draft. Share your work and keep building on it. START FREE Sign in with Apple or Google to create and back up your studies. Free accounts receive 5 cloud run credits per month. Optional Pro, Advanced, and Commercial subscriptions provide larger allowances and additional cloud reasoning capabilities. Deeper requests can use multiple credits; usage limits apply. Prices appear in the app before purchase. Subscriptions renew monthly until cancelled in your Apple Account settings. Cloud AI sends study context to our service and AI provider. Signed-in study backup uses cloud storage. Privacy: https://agentscix.com/occam/privacy Terms: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Quantum Programming Compiler4 screens
Occam SI4 screens

Verdict

The call

The clearest difference is in-app purchases: Occam SI at none against Quantum Programming Compiler's 4. Occam SI also leads on ads (none vs shown). Quantum Programming Compiler's advantage is iOS requirement (12.0 vs 26.0). On price, update cadence 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

Both are free to download. Quantum Programming Compiler sells 4 in-app purchases, starting at $2.99 per month. Occam SI asks for nothing beyond the download.

UpkeepUpdate frequency

Quantum Programming Compiler ships an update monthly, Occam SI every 2 months. The most recent releases landed on September 23, 2026 and October 12, 2026 respectively.

Scorecard3 real differences · 7 level
Quantum Programming Compiler versus Occam SI: the parameters behind the verdict, then further details
ParameterQuantum Programming CompilerOccam SI
PriceFreeFree
Rating3.4 (8 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings8 — better—
Update frequencyMonthly — betterEvery 2 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better26.0
Further details — not scored
Size25 MB47 MB
Age rating4+17+
DeveloperKetan AppaDakota Bullard

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
None

Occam SI

No in-app purchases

Questions

Is Quantum Programming Compiler free?
Quantum Programming Compiler is free to download, with in-app purchases available.
Is Occam SI free?
Occam SI is free to download, with no in-app purchases.
Do Quantum Programming Compiler or Occam SI have ads?
Quantum Programming Compiler shows ads; Occam SI does not.
Which is updated more often, Quantum Programming Compiler or Occam SI?
Quantum Programming Compiler ships an update monthly, and Occam SI every 2 months. Most recently, Quantum Programming Compiler was updated on September 23, 2026 and Occam SI on October 12, 2026.

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