🗣️ Post 1: Launch HN: Bitrig (YC S25) – Build Swift apps on your iPhone

As posted by: kylemacomber  |  🔥 Points: 140

🔗 https://news.ycombinator.com/item?id=45041185

💬 Summary

Hi HN, we’re Kyle, Jacob, and Tim. We’re building Bitrig (https://www.bitrig.app).

Bitrig lets you create native Swift apps for your phone, on your phone, just by chatting with AI. It’s like Lovable for iPhone apps.

Here's a video of Bitrig in action: https://youtu.be/CUlWhF3ERME

We created SwiftUI at Apple to help developers make better apps with less code. Bitrig lets anyone build at this level of polish. If you've thought about making an iPhone app, Bitrig is the easiest possible way to get started with Swift.

Bitrig uses Claude Sonnet 4.0 with a simple system prompt and tool definitions to generate native Swift code. Normally running this on an iPhone would require compiling and signing it with Xcode, and you can’t run Xcode on an iPhone. So we did something… creative. We wrote a custom Swift interpreter! Among other things this lets you instantly preview your app in Bitrig and share it with just a URL.

If you have a paid Apple developer account, you can connect it with Bitrig. We’ll compile your app on our server and upload it to App Store Connect, so you can distribute it on TestFlight or the App Store. This last step also gives you a fully optimized build of your app that you can install right on your Home Screen.

We think there’s something electric about building apps directly on your phone. We hope you give Bitrig a try!

We’re ingesting Apple’s SDK frameworks into Bitrig piece by piece. If you try to build something and hit a missing framework, let us know and we’ll prioritize adding it.

Download Bitrig on the App Store: https://apps.apple.com/us/app/bitrig/id6747835910

🗣️ Post 2: Show HN: Nano Banana Pro – AI image editing powered by Google's official API

As posted by: derek39576  |  🔥 Points: 2

🔗 https://nanobanana.pro

💬 Summary

I built Nano Banana Pro (nanobanana.pro ), a simple web app for text-to-image generation and context-aware editing using Google’s official flash image API.

Upload an image (JPG/PNG/WebP, up to 6MB)

Edit with text prompts or blend styles

Get consistent, high-quality results in seconds

It’s free to try (first enhancement is free). Feedback and ideas welcome!

🗣️ Post 3: Show HN: AI-powered video analysis tool that generates 800 word content prompts

As posted by: reverseCh  |  🔥 Points: 2

🔗 https://video2prompt.org

💬 Summary

Hey HN! I've built Video-2-Prompt, an AI tool that converts videos into detailed content prompts.

*What it does:* - Analyzes videos (MP4, MOV, AVI, WebM) and platform URLs (YouTube, TikTok) - Generates 600-800 word professional analysis reports - Provides insights on engagement factors and content strategy

*Key Features:* - Multi-AI integration with intelligent fallback - Deep analysis mode for comprehensive insights - Real-time processing with progress indicators - Platform-agnostic video processing

*Tech Stack:* - Next.js 14, React 18, TypeScript - Serverless architecture (Vercel) - Smart video analyzer with retry mechanisms

*Use Cases:* - Content creators analyzing viral videos - Marketing teams understanding competitor strategies - Researchers converting video content to text

*Live Demo:* https://video2prompt.org

The tool is free to use. I'd love feedback on analysis quality and feature suggestions!

🗣️ Post 4: Show HN: Evidence-based agents for PDF chat, academic search, and paper editing

As posted by: ieuanking  |  🔥 Points: 2

🔗 https://app.ubik.studio/chat

💬 Summary

Hey everyone!

Ubik is great for academic research workflows, like uploading/marking up PDFs and searching scholarly databases. We built agents that can create precise annotations (notes) down to the line level, and can be referenced later when prompting agents using the @ symbol (like Cursor). Through @ sign note-referencing in prompts, agents stay grounded in source material added to the context window, minimizing hallucinations while building contextual understanding of user needs through interactive note-taking and PDF viewing in-browser.

We graduated from college right before ChatGPT was released, and we worried about AI's effects on learning, reading, and original research. We've spent the last 2 years building a platform that integrates the best parts of being human, like reading, writing, and thinking, with evidence-based AI agents.

If you think this sounds helpful, try it out, and let me know if you think this is a good tool for higher education and professional research. We are a small team of 2. A complete local app and evals coming soon <3

🗣️ Post 5: Why is AI search still bad at trust and context?

As posted by: zyruh  |  🔥 Points: 2

🔗 https://news.ycombinator.com/item?id=45043008

💬 Summary

I’ve been testing a lot of AI search tools lately, and I keep running into the same three issues:

Accuracy with sources — either the responses don’t cite sources at all, or when they do, the citations don’t hold up.

Bias — answers are often skewed toward a certain narrative instead of presenting a balanced perspective.

Context memory — tools forget what you asked a few prompts ago, which makes complex queries tedious.

Individually, some products do one or two of these well. But I haven’t found anything that consistently delivers all three at once.

Why is this such a hard problem to solve? Is it a technical limitation, a product decision, or something else? Curious to hear what others here think.

🎯 Final Takeaways

These discussions reveal how developers think about emerging AI trends, tool usage, and practical innovation. Take inspiration from these community insights to level up your own development or prompt workflows.