A peptide tracker with a built-in vial calculator
100% free. No credit card needed.
What you can track with peptides
- Every dose with its amount, unit (mg, mcg, IU or mL), injection site and time.
- A vial calculator that turns the dose you chose into the exact units to draw on an insulin syringe.
- On and off cycle planning, with a calendar of the next 12 weeks.
- Vial stock with the date you mixed it and a use-by reminder.
- Combinations worth discussing with your clinician.
Use it with your own AI assistant
Ask your assistant to work out the units to draw for the dose you chose, or to log a peptide dose.
Smart Cycle has a built-in MCP server, so ChatGPT, Claude, Gemini, Grok or Mistral can read your data and, if you allow it, log doses, weight and labs by chat. Ask for a weekly report, when your next dose is due or which labs are out of range. You choose read-only or read and edit access, and you can switch it off at any time.
The built-in AI tools can also read a photo of a lab report and write your progress report, using your own free Gemini or Mistral key.
Questions about peptides in Smart Cycle
Which peptides can I track?
Any. Add your own items with a name, form and unit, or pick from the built-in list. GLP-1 medicines such as semaglutide, tirzepatide and retatrutide have their own tracking.
How does the reconstitution calculator work?
Enter the vial amount, the water you add and the dose you chose. Smart Cycle shows how many units to draw on a U-100 insulin syringe and warns if the draw is too small or does not fit. It never picks a dose for you.
Does Smart Cycle sell peptides or tell me what dose to take?
No. It only records and converts what you and your clinician decide. It is not medical advice.
Is Smart Cycle really free?
Yes. Smart Cycle is 100% free to use and needs no credit card. Your health data is yours and is never sold.
Can I use an AI assistant with my peptide log?
Yes. You can connect ChatGPT, Claude, Gemini, Grok or Mistral to ask questions, make reports or log doses by chat.
Not medical advice
Smart Cycle is a personal tracking tool. Talk to your clinician before you start, stop or change any treatment.