Software Alternatives & Startups

Officially verified details Coachstack

Programs, workout logging and session prep for personal trainers. Clients log every set from their phone, even offline, and before each session you see how the last one went. Free during the beta.

Coachstack

Coachstack Reviews and Details

This page is designed to help you find out whether Coachstack is good and if it is the right choice for you.

Screenshots and images

  • Coach Home //
    2026-10-28
  • Coach Brief //
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  • Proposals and programs //
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  • Exercise Progress //
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  • Client Overview //
    2026-10-28
  • Clients List //
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  • Calendar //
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  • Program //
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  • Program Builder //
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  • Phone Client Today //
    2026-10-28
  • Phone Workout Logger //
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  • Phone Workout Logger Rest //
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  • Phones side by side //
    2026-10-28

Features & Specs

  1. Session brief

    One page before each session: last session, pain, messages and today's plan next to last time

  2. Progression proposals

    Load increases calculated from the logged sets, with their reasons. Nothing changes until the coach approves

  3. Pain reports

    Clients report pain during a session. No increase is proposed on that exercise until the coach has read it

  4. Offline workout logging

    Clients log every set from the phone's browser, also without signal. It syncs when the connection returns

  5. Coach on the same session

    The coach can log the client's session from their own phone or tablet while the client trains

  6. Program builder

    Weeks, days, sets, reps, load, RIR and rest, with supersets and circuits. Published versions stay unchanged

  7. Import from Excel or CSV

    Programs and clients come in from an .xlsx file, a CSV or a paste

  8. Goals

    A target on a lift with a date, and whether the client is ahead of pace

  9. Calendar

    Day, week, month and agenda views. Clients can request a session and the coach confirms it

  10. Check-ins and messages

    Recurring check-ins the client fills in, and one-to-one chat with the coach

  11. Platforms and languages

    Computer, tablet and phone browser, nothing to install. English and Italian, light and dark

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Questions & Answers

As answered by people managing Coachstack.
  1. Which are the primary technologies used for building Coachstack?

    Next.js and React with TypeScript, Supabase (PostgreSQL with row-level security), Tailwind CSS, hosted on Vercel.

  2. What makes Coachstack unique?

    Coachstack is built around the decision a coach makes before each session. One page shows how the last session went: sets done, pain reported, messages waiting, and the session planned for today next to what the client lifted last time. Load increases are calculated from the logged sets and arrive as proposals with their reasons; nothing changes the programme until the coach approves. If a client reports pain on an exercise, no increase is proposed on it until the coach has read the report.

  3. Why should a person choose Coachstack over its competitors?

    Because it keeps the training record and the coaching decision in one place. Clients log every set from the phone's browser, with nothing to install, and the logger keeps working without signal. The coach can log on the same session from their own phone or tablet. Programmes and clients come in from Excel or CSV, so there is no starting from zero. It is free during the beta, in English and Italian.

  4. How would you describe the primary audience of Coachstack?

    Personal trainers who coach both in person and online: independent coaches and small studios run by one coach, with clients who train in the gym with them and on their own between sessions.

  5. What's the story behind Coachstack?

    Many personal trainers still run their business on spreadsheets, paper notes and chat messages: the programme lives in one file, the client's sets in another, and the reason a load was changed lives nowhere. Coachstack was built in Italy to put those pieces together, so that every session is recorded once and the next one starts from what happened in the last.

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Is Coachstack good? This is an informative page that will help you find out. Moreover, you can review and discuss Coachstack here. The primary details have been verified within the last quarter. So they could be considered up to date. If you think we are missing something, please use the means on this page to comment or suggest changes. All reviews and comments are highly encouranged and appreciated as they help everyone in the community to make an informed choice. Please always be kind and objective when evaluating a product and sharing your opinion.