onlinegdb vs Notats
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
onlinegdb
Write, compile, and run code on your mobile device with a professional IDE. Supports over 39 programming languages with syntax highlighting, real-time execution, and code management features.
- Support for 39+ programming languages
- Professional code editor with syntax highlighting
- Real-time code execution
- Code snippet saving and organization
- Light and dark themes
- Optimized for phones and tablets
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OnlineGDB Mobile – Professional Code Compiler and IDE Write, compile, and run code on the go with OnlineGDB Mobile, a comprehensive mobile coding solution supporting more than 39 programming languages. OnlineGDB Mobile brings the power of the popular OnlineGDB platform to your phone or tablet, allowing you to code, test, and experiment anytime, anywhere. Key Features Support for 39+ Programming Languages C, C++, Java, Python, JavaScript (Node and Rhino), TypeScript, Kotlin, PHP, C# (Mono and .NET), Go, Rust, Swift, Ruby, Perl, Bash, Lua, Dart, R, Haskell, Scala, OCaml, Fortran, Pascal, COBOL, Assembly (GCC and NASM), Objective-C, Prolog, Groovy, Ada, Zig, D, Tcl, Smalltalk, SQLite, C3, PascalABC.NET, and Visual Basic. Professional Code Editor Syntax highlighting for all supported languages Auto-indentation and code formatting Light and dark themes Adjustable font sizes Line numbers and error highlighting Undo and redo support Powerful Compilation Features Real-time code execution Interactive and text-based input modes Custom compiler flags and arguments Command-line argument support Live output streaming Code Management Save and organize your code snippets for later use. Developer-Friendly Experience Works on both phones and tablets Optimized interface for coding on mobile devices Clean and intuitive design Perfect For Students learning programming Developers coding on the go Technical interview preparation Quick code testing and debugging Algorithm practice and problem solving Teaching programming concepts Competitive programming practice Powerful Yet Simple OnlineGDB Mobile combines the capabilities of a desktop IDE with the convenience of mobile devices. Execute complex programs, test algorithms, practice for interviews, or learn new programming languages directly from your phone or tablet. Always Accessible Whether you are traveling, studying, or simply away from your laptop, OnlineGDB Mobile lets you write and run code anytime. It is the perfect companion for developers and students who want a flexible coding environment. Supported Languages (Complete List) Ada, Assembly (GCC), Assembly (NASM), Bash, C, C# (Mono), C# (.NET), C++, C3, COBOL, D, Dart, Fortran, Go, Groovy, Haskell, Java, JavaScript (Node), JavaScript (Rhino), Kotlin, Lua, Objective-C, OCaml, Pascal, PascalABC.NET, Perl, PHP, Prolog, Python, R, Ruby, Rust, Smalltalk, SQLite, Swift, Tcl, TypeScript, Visual Basic, Zig. Start coding today with OnlineGDB Mobile, a powerful mobile compiler designed for developers, students, and programming enthusiasts.
Notats
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Meet NOTɅTS: Your AI-Powered Digital Brain & Note-Taking App Stop losing your handwritten notes, messy whiteboards, and scattered audio files. NOTɅTS uses advanced AI and Optical Character Recognition (OCR) to digitize, organize, and extract knowledge from everything you capture. Transform your physical notebooks into a searchable, interactive, and collaborative second brain. Whether you are a student prepping for final exams or a professional organizing complex meeting notes, NOTɅTS is the ultimate AI productivity and active learning tool. CORE FEATURES CAPTURE & DIGITIZE ANYTHING • Smart Scan: Instantly crop, enhance, and extract text from clean handwriting or printed documents. • Deep Scan: Use advanced AI to accurately read messy cursive, complex diagrams, and whiteboard brainstorms. • Audio & PDFs: Import PDFs or record voice memos. The AI generates highly accurate transcriptions so your spoken ideas become completely searchable. MULTI-LANGUAGE TRANSLATION Break down language barriers. NOTɅTS supports AI transcription, handwriting recognition, and instant text translation across multiple languages. It is the perfect study companion for language learners and global teams. MEET NEXA: CHAT WITH YOUR NOTES Stop scrolling through pages trying to find an answer. Nexa is your personal AI assistant built directly into your digital library. • Global Chat: Ask a question, and Nexa will search every note you’ve ever saved to give you an answer with cited sources. • Scoped Chat: Open a specific document to generate quick summaries, extract action items, or translate text instantly. AI STUDY MODE & EXAM PREP Turn your static notes into active learning tools with a tap. NOTɅTS automatically generates customized study materials directly from your scanned pages: • AI Voice Tutor: Have a real-time, vocal conversation with an AI that quizzes you on your notes and provides instant feedback. • Practice Quizzes & Flashcards: Auto-generate tests to check your knowledge using active recall. • Subject Mastery: Let the AI identify your weak points and track your confidence scores. • Pomodoro Timer: Built-in focus sessions to keep you on track. COLLABORATE IN REAL-TIME Create Smart Folders and share them with classmates or colleagues via a simple invite link. Everyone can view, search, and chat with the digitized notes together. UNIVERSAL SEARCH Never lose a thought again. Our AI indexes every single word from your images, PDFs, and audio transcriptions. Type a keyword, and NOTɅTS will instantly find the exact document and highlight the section. PRIVATE & SECURE Your data is encrypted and securely stored in your private cloud vault. We NEVER use your personal notes or files to train external, public AI models. GET STARTED FOR FREE & IN-APP PURCHASES Start building your digital library for free! Claim Daily Bonus credits, watch short videos to earn more, or upgrade your workflow... • NOTɅTS Pro (Subscription): Unlock the ultimate second brain. Enjoy unlimited cloud storage, priority AI processing speed, and unrestricted access to all advanced study tools. • AI Credit Packs: Need a quick processing boost for finals week or a massive project? Purchase one-time, pay-as-you-go credit packs to instantly top up your credits whenever you need them. Payment will be charged to your Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Legal Terms of Service: https://spinverse.co.uk/notats/tos Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://spinverse.co.uk/notats/privacy Download NOTɅTS today and build your ultimate digital library!
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Verdict
The clearest difference is in-app purchases: onlinegdb at none against Notats's 4. onlinegdb also leads on ads (none vs shown) and chart position (#150 vs unranked). 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
Both are free to download. Notats sells 4 in-app purchases, starting at $4.99 per month. onlinegdb asks for nothing beyond the download.
| Parameter | onlinegdb | Notats |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) — better | — |
| Positive reviews | 66.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | — | Every 3 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Best chart rank | #150 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.5 — better |
| Further details — not scored | ||
| Size | 24 MB | 76 MB |
| Age rating | 4+ | 4+ |
| Developer | AVIRAJ PATEL | Spinverse Ltd |
In-app purchases
onlinegdb
No in-app purchases
Notats
- Pro Monthly$4.991 Month
- 50 Credits - Starter Pack$0.99
- 100 Credits$1.99
- 200 Credits$2.99









