Comparison

Felgo 3 QML Dev App vs CFR AI

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

Head to head
About

Felgo 3 QML Dev App

Develop and test Qt and Felgo apps in real-time on your device without needing mobile SDKs. Explore over 20 demos and 200 examples with full source code to enhance your development skills. Access comprehensive API documentation and search for relevant components.

Highlights
  • Real-time app preview on device
  • Develop without mobile SDKs
  • 20+ app demos with source code
  • 200+ component examples
  • API reference and search
  • Hot Reload functionality
Read full description

The QML Live app is the ultimate developer experience for Qt and Felgo developers! DEVELOP The Projects viewer allows you to develop Felgo apps & games on your desktop, and view the result in real-time on your device, without installing mobile SDKs. Boost your productivity, by saving time on compilation and deployment. LEARN FROM DEMOS & EXAMPLES Try 20+ included app demos like music streaming apps, social apps, workout apps & more. Every demo comes with full source code and documentation to improve your development skills. The 200+ included app examples show how to use Qt and Felgo components in your app. REFERENCE Browse through all available Felgo and Qt APIs and open documentation, examples & related content. The included search shows you relevant demos, examples & components for every keyword you look for. FELGO SDK Felgo & Felgo Live with Hot Reload is available for free with the Felgo SDK. Sign up at the Felgo website to fast forward your app & game development. Felgo is based on the Qt framework. Qt is a powerful cross-platform toolkit based on C++ which enables powerful animations with Qt Quick and native performance on all major mobile platforms. Felgo extends the Qt 5 framework with components that you can test with this app. These are for example: - Components that allow native user experience on all major mobile platforms with a single code base. E.g., on iOS you will experience swipe back gesture support, while on other platforms a navigation drawer is used – this is supported automatically without any change of code. - Full range of native widgets optimized for a native platform behavior like tabs, dialogs and list views. Felgo allows native user experience with a single code base and fluid animations.

About

CFR AI

Access and understand Title 37 of the Code of Federal Regulations with AI-powered insights. Get instant, accurate answers to complex questions about patents, trademarks, and copyrights. Includes features for notes, calendar, and reminders.

Highlights
  • AI-powered GPT-4o guidance
  • Instant answers on Title 37
  • Example questions for exploration
  • Interactive AI chatbot
  • Notes, calendar, and reminders
  • User-friendly interface
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CFR AI - Title 37 is built for people who need a focused, modern workspace for Code of Federal Regulations Title 37 research and organization. Ask questions about Title 37 and get AI-assisted responses designed around current eCFR source material, citations, and a clear trust layer. The app also gives you a productivity hub for saved answers, deadlines, reminders, notes, and title-specific follow-up work. Key features: Live Title 37 CFR Chat Ask natural-language questions about Patents, Trademarks, and Copyrights and receive structured AI responses with citation-oriented source context from current eCFR data. eCFR Trust Layer Responses are designed to highlight cited CFR sections, source context, and professional-use reminders so users understand what should be verified before relying on an answer. CFR Change Monitor Track Title 37 update context, recent amendment dates, saved sections, and CFR follow-up work. Citation Builder Build and save CFR references for research, case notes, follow-ups, and professional documentation. Compare Versions Compare CFR section text across available eCFR dates to better understand how regulations have changed over time. Intellectual Property Organizer Track CFR-related questions, review steps, target dates, statuses, and follow-up items for intellectual property work. Advanced Calendar Use an iOS-style calendar workspace with month, week, day, and agenda views for review blocks, appointments, deadlines, and saved chat answers. Reminders Create organized reminder lists with due dates, notes, priorities, tags, flagged items, scheduled items, and CFR follow-ups. Notes Save research notes, AI answers, citations, checklists, tags, folders, and longer CFR notes without losing important context. AI Action Buttons Save useful chatbot responses into calendar items, reminders, notes, and organizer workflows so research can turn into action. Important notice: CFR AI - Title 37 is an independent productivity and research tool. It is not affiliated with, endorsed by, or sponsored by the U.S. government, eCFR, or the Office of the Federal Register. The eCFR is continuously updated but is not the official legal edition of the CFR. AI responses should be reviewed against cited source material and should not be treated as legal, medical, benefits, or professional advice. Subscription required: Access to app features requires an active subscription. Subscriptions are managed through your Apple account and can be canceled in App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Felgo 3 QML Dev App4 screens
CFR AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Felgo 3 QML Dev App at none against CFR AI's 4. Felgo 3 QML Dev App also leads on ratings volume (3 vs 1) and iOS requirement (12.0 vs 26.0). On price, rating, update cadence and ads 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. CFR AI sells 4 in-app purchases, starting at $0.99 per 7 days. Felgo 3 QML Dev App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Felgo 3 QML Dev App against 5.0 for CFR AI. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

Felgo 3 QML Dev App ships an update every 5 weeks, CFR AI every 2 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Felgo 3 QML Dev App versus CFR AI: the parameters behind the verdict, then further details
ParameterFelgo 3 QML Dev AppCFR AI
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Positive reviews80.0% of reviews—
Number of ratings3 — better1
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better26.0
Further details — not scored
Size103 MB13 MB
Age rating4+12+
DeveloperFELGO GmbHSmerDev Studio LLC

Customer experience

Felgo 3 QML Dev App

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

CFR AI

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Felgo 3 QML Dev App

No in-app purchases

4 purchases

CFR AI

Subscriptions4
  • CFR AI 37 Weekly3 Days trial$0.997 Days
  • CFR AI 37 Monthly3 Days trial$3.991 Month
  • CFR AI 37 Biannual3 Days trial$23.996 Months
Show 1 more
  • CFR AI 37 Annual3 Days trial$45.991 Year

Questions

Is Felgo 3 QML Dev App free?
Felgo 3 QML Dev App is free to download, with no in-app purchases.
Is CFR AI free?
CFR AI is free to download, with in-app purchases available.
Which has better reviews, Felgo 3 QML Dev App or CFR AI?
Felgo 3 QML Dev App and CFR AI are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do Felgo 3 QML Dev App or CFR AI have ads?
Neither Felgo 3 QML Dev App nor CFR AI shows ads.
Which is updated more often, Felgo 3 QML Dev App or CFR AI?
Felgo 3 QML Dev App ships an update every 5 weeks, and CFR AI every 2 months. Most recently, Felgo 3 QML Dev App was updated on November 2, 2026 and CFR AI on October 30, 2026.

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