
ExamCoach
AI that finds your weak spots before the exam does
What it does
Most people prep certs the wrong way — rewatching lectures on topics they already know, with no idea which domains will cost them on exam day. ExamCoach quizzes you daily on your weakest topics, explains every wrong answer, and shows which domains are costing you points. Upload your own notes and get quizzed from your own material. 14 certs live: AWS · Azure · GCP · CompTIA · Cisco · ISC² · Salesforce · CFA · more. Free. No credit card required.
Does the same job
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- CertiPrepAIMay 2026 · certiprepai.com · ▲2
AI-powered AWS certification prep — pass on your first try

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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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