
Ranita AI - Scam detector
Is that a scam? Find out in seconds — safely and privately
What it does
Scammers are getting smarter — but so can you. Ranita AI helps you spot fraudulent messages, suspicious emails, and potential scams before you become a victim. All privately, on your iPhone, powered by Apple Intelligence. Scams aren’t just financial crimes. They’re life-altering events: We’ve seen victims fall into depression. Marriages strained by guilt and blame. People who lose confidence in their own judgment—and with it, their sense of independence. Don't be one of those people.
Does the same job
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I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
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Hey HN, Henry from Cactus here! We previously released Cactus Needle, a 14MB agentic LLM for tool call, device use, and structured extraction for phones, wearables, smart homes, small robots and microcontrollers. We got really great feedback here, and have now incorporated the suggestions to release Needle 2. The whole model is a single 14MB binary that runs a full session in 28MB of RAM; 45m parameters at 2bit compression. Needle hits 500 tokens/sec decode speed on a Raspberry Pi 5, sits between 400-1,500 tokens/sec on VR devices like Meta Quest 3S and Apple Vision Pro, and ranges…
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