JS.Notebook vs PrivAI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JS.Notebook
Build, test, and run your JavaScript code directly on your iOS device. This utility allows you to execute scripts in widgets and even use your device as a host for computer browser code execution.
- Build JavaScript code
- Test code at runtime
- Run code in widgets
- Use device as code host
- Code execution in computer browser
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JS Notebook provides a creative way for you to build and try out your Javascript. - Build, test, and check your code at runtime. - Easily run your code in Widgets - Read code in computer browse, make the iOS device to be a host.
PrivAI
This application provides a private and secure AI chat experience by running entirely on your device. It ensures your data never leaves your system, offering control and offline functionality without cloud dependence.
- On-device AI processing
- Data stays on your device
- Offline operation supported
- No cloud dependence
- Full data ownership
- Cost-effective
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Use AI locally on your device, with no internet connectivity and maximum security and privacy—your chats never leave your device. Powered by research out of MIT CSAIL, Liquid AI LFM2.5-2.6B is a state-of-the-art LLM. Unmatched Privacy Guarantee - Your data never leaves your device - No surveillance from cloud providers, ISPs, schools, governments, or any other entities - True digital sanctuary in an age of constant tracking Local AI, Maximum Security - Your computer is the compute—no cloud required - On-system processing for unparalleled control - Operate entirely offline after model download, free from internet dependence Exclusive Control & Compliance - Retain full ownership of your data - Perfect for sensitive information and stringent compliance requirements - No third-party involvement, ever Flexible & Affordable - More control, more flexibility than cloud-based alternatives - Cost-effective, no hidden fees or expensive subscriptions Eco-Conscious Computing - Reduce your digital carbon footprint using local compute - Uses fewer resources for a more sustainable AI future Internet-Free Operation - No network permissions needed - Works seamlessly without constant connectivity - Your personal AI, available anytime, anywhere PrivAI isn't just another AI—it's a privilege in today's digital landscape. While it may not match the raw speed of AI giants, PrivAI offers something far more valuable: true privacy and control over your digital life. Experience the future of AI, where privacy is the priority. PrivAI is the AI companion that respects your data, learns with you, and empowers you to take control of your digital footprint. Join the PrivAI revolution. Because in the world of AI, privacy isn't just a feature—it's a philosophy. Download PrivAI today and discover the power of truly private artificial intelligence. ***Disclaimer*** Please be aware that Large Language Models (LLM) may be prone to “hallucination” and may generate inaccurate information. PrivAI is intended for creative, artistic and entertainment purposes, and you should always double-check output for accuracy.
Screenshots
Verdict
The clearest difference is rating: JS.Notebook at 5.0 against PrivAI's 4.3. JS.Notebook also leads on iOS requirement (14.0 vs 17.0). PrivAI's advantage is ratings volume (7 vs 1). On price, update cadence, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
JS.Notebook holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: PrivAI has 7 ratings behind it against 1, so its average is the more settled of the two.
JS.Notebook ships an update every 50 months, PrivAI every 26 months. The most recent releases landed on October 3, 2026 and October 27, 2026 respectively.
| Parameter | JS.Notebook | PrivAI |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.3 (7 ratings) |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | 1 | 7 — better |
| Update frequency | Every 50 months | Every 26 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 19 MB | 1.6 GB |
| Age rating | 4+ | 12+ |
| Developer | Zijie Deng | Animet, Inc. |
Customer experience
JS.Notebook
PrivAI
In-app purchases
JS.Notebook
No in-app purchases
PrivAI
No in-app purchases









