Each app is run by Lev independently of COHENTRA LTD, under its own terms and privacy policy.
Orzio
Live · Free while in early access
Send a meal photo in Telegram. Orzio estimates the calories and macros, checks them against the food rules you saved, and keeps your daily totals.
Where it runs
Telegram on a phone, tablet or computer. No app to install and no sign-up.
With Claude
Add the Orzio connector and Claude can analyse your meals, macros and weight. Logging meals and managing your nutrition goals need a separate approval.
Good to know
Estimates can be wrong. Orzio is not medical or nutritional advice.
Practise the official SAT Question Bank on a test-day screen, and see which questions keep costing you points.
Where it runs
Chrome, Brave, Edge and Firefox on a computer.
With Claude
Add the Cookd connector and Claude reads your practice history and notes, then builds sets for the time you have. It sees question IDs and skills, never the questions themselves.
Close your MacBook and keep your AI agents running. StillOn keeps the Mac awake while Claude Code, Codex and other agents work, and can let it sleep when they finish.
Where it runs
Apple silicon and Intel MacBooks. Free for 7 days, then a one-time licence.
With Claude
Keeps Claude Code running while the lid is closed. StillOn supports the workflow; it does not call Claude itself.
Measured
In StillOn’s own power study, updated 3 September 2026, it drew 1.76 W with the lid closed: the lowest of five ways tested on one M4 MacBook Pro. The raw data is published with it.
Orzio and Cookd are MCP servers that Claude connects to as custom connectors. You add one in Claude, approve access, then ask about your own data in plain language. Orzio asks you to approve access in Telegram; Cookd uses a standard sign-in. Both can also be added to Claude Code.
Both are built around what the AI should not do. Orzio keeps reading and writing apart: analysis comes with the connection, while logging meals or changing goals needs its own approval. Cookd never sends College Board’s question text, answer choices, answer keys or explanations to the AI: Claude sees question IDs, skills, your answers, timing and notes, and links you to a question instead of reading it.
Cambridge AS Economics multiple-choice past papers from 2016 to 2026, one question at a time, with instant feedback and accuracy by topic.
Free · 2,000+ questions
Orzio, Cookd, StillOn, Kelvin and Revlo are made and run by Lev from our team, independently of COHENTRA LTD, under their own terms and privacy policies. Product names on this page, such as Claude, SAT, Telegram and MacBook, belong to their owners and are used only to describe what these apps work with. No affiliation or endorsement is implied.
