Comparison

Quantum Programming Compiler vs Query

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

Query

Access location-based audio and supplemental information by speaking keywords. Discover details about products, services, places, or celebrities within specified geographic ranges.

Highlights
  • Keyword-triggered audio responses
  • Location-based information retrieval
  • Supplemental info (web links, images, video)
  • Map view with advertiser pins
  • QR code access to information
  • Category-based keyword shortcuts
Features
Read full description

Query-Point® is a directory into which “advertisers” of products, services, places or celebrities may place information and set the range of the availability of that information based upon whatever distance makes the sense in terms of being obtainable. We call this information a listing The app is the gateway to retrieving the information. An app user requests the information using a “keyword”, and may then listen to the response placed into the directory by the advertiser The system is GPS based. Real estate signs, local storefronts, billboards and bus benches and historical markers all have a range of operation of 1200-feet from the sign or storefront. This is in effect a 2400-foot umbrella within which the system will operate Government signage has an operational range of 2200-feet, or an umbrella of 4400 feet. Distances go up dramatically from there Hyper local geo fence promotion, which could include schools, may have a 4-mile radius of operation Ads on a city bus might use a 15 mile radius (A 30 mile umbrella) to allow information to be requested anywhere along a route Large local businesses, in particular ones using a lot of trucks with their name painted on them, might choose a 50-mile radius of service. Radio and local TV advertisers might choose a 150-mile radius of service to get the coverage needed where-ever the ad is heard. Each “advertiser” has a pin on the map found in the app which may lead to acquiring the same information as would be gained when within proximity of the fixed point Each listing has a QR code that takes people to the same information in a universal format that does not require use of the app Query-Point® is a directory that allows consumers using our app to “pull” Internet based information from specific entities. Unlike search engines, the entity being requested provides the information the user receives How it Works As the app user comes “in range” of the enabled sign the user is able to push the microphone button and say the keyword(s) found on the sign that triggers the system to provide information. Usually this action is stimulated from viewed signs that are nearby. The app user says what is written on the sign or heard over the air, (the keyword(s)) into the app and the system responds with immediate audio information, and supplemental information through the app. The supplemental information may include web links, pictures, contact information and video. The information is placed on the system by or on behalf of the stakeholder or advertiser We are all about safety. Entities also get an icon on the map found in the app. Another safety precaution is the use of short-cut keywords by category that gather the information from every listing that is within the users range. For example sometimes it is hard to get the name from a real estate sign, in which case the app user may grab the same information by saying “Hey Property”. This will return any property items within range of the app user Saying “Hey Local” will return any of the local entities with range of the user. These could be local businesses but also nearby churches and schools. Saying “Hey Marker” will retrieve information from historic markers if listed in out directory. Government services, including zoning signs, public works signs, and items such as buildings and parks, will respond to “Hey Government”, up to a range of 2200 ft. Any of the items with a range based in miles will respond to “Hey Info” Cost The app is free to users. For advertisers, the basic service can be free for many categories Information and Privacy App users are anonymous and they will not receive pop-up ads in their emails or while browsing. Paid advertisers have on their dashboards the record of the time someone queried their sign. They are provided with no other information. Visit https://www.query-point.com to learn more. Feel free to reach out to us at info@query-point.com with any comments, questions or suggestions.

Screenshots

Quantum Programming Compiler4 screens
Query4 screens

Verdict

The call

The clearest difference is rating: Query at 5.0 against Quantum Programming Compiler's 3.4. Query also leads on in-app purchases (none vs 4) and ads (none vs shown). Quantum Programming Compiler's advantage is update cadence (monthly vs every 11 months) and ratings volume (8 vs 1). On price, device support and iOS requirement 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. Query asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Query holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Quantum Programming Compiler has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 67% of Quantum Programming Compiler's written reviews are positive against 100% of Query's.

UpkeepUpdate frequency

Quantum Programming Compiler ships an update monthly, Query every 11 months. Both last shipped on October 24, 2026.

Scorecard7 real differences · 3 level
Quantum Programming Compiler versus Query: the parameters behind the verdict, then further details
ParameterQuantum Programming CompilerQuery
PriceFreeFree
Rating3.4 (8 ratings)5.0 (1 ratings) — better
Positive reviews66.7% of reviews100.0% of reviews — better
Number of ratings8 — better1
Update frequencyMonthly — betterEvery 11 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.011 — better
Further details — not scored
Size25 MB59 MB
Age rating4+4+
DeveloperKetan AppaQuery-Point

Customer experience

Quantum Programming Compiler

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

Query

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Query

No in-app purchases

Questions

Is Quantum Programming Compiler free?
Quantum Programming Compiler is free to download, with in-app purchases available.
Is Query free?
Query is free to download, with no in-app purchases.
Which has better reviews, Quantum Programming Compiler or Query?
Query is rated higher. Quantum Programming Compiler averages 3.4 out of 5 from 8 ratings, while Query averages 5.0 from 1 ratings.
Do Quantum Programming Compiler or Query have ads?
Quantum Programming Compiler shows ads; Query does not.
Which is updated more often, Quantum Programming Compiler or Query?
Quantum Programming Compiler ships an update monthly, and Query every 11 months. Most recently, Quantum Programming Compiler was updated on October 24, 2026 and Query on October 24, 2026.

Other comparisons