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Your sheet is free. So is Grytt. Only one of them is an app your clients will use.

Clients log sets, food and check-ins on their phone. You stop chasing screenshots on WhatsApp. Free for your first 10 clients, and we move your programs over for you.

Start free: 10 clientsMove my clients over

Your clients never pay. No card needed.

Where Grytt wins

What you get with Grytt, next to Spreadsheets

$0, just like your sheet

Free forever for 10 clients. No card, no trial clock.

Grytt
$0
Spreadsheets
$0

at 10 clients

Spreadsheets

A spreadsheet costs nothing, and you control every cell.

No more “did you update the sheet?”

Clients log sets, reps, RPE and rest on their phone. You see it as it happens.

  1. Client logs on their phone
  2. You see it live

Spreadsheets

A sheet works as long as every client opens it and types in the right cell.

PRs and e1RM without formulas

PRs, estimated 1RM, volume and muscle heatmaps, worked out for you. No broken formulas.

  • PRs
  • e1RM
  • Volume
  • Muscle heatmaps

Spreadsheets

You can build all of this in a sheet. You also maintain it.

We move your programs over

Send us your sheet. We set up your programs in Grytt, so you don’t start from scratch.

  1. Send your sheet
  2. We set it up
  3. Start coaching

Spreadsheets

Nothing to migrate. Everything stays where it is.

Form checks

Feedback on the exact rep

Your client films a set in the app. You scrub to the second it goes wrong, pin a note there, and mark the check reviewed. They see your feedback on the rep itself, not buried in a thread.

  • Notes pinned to the exact second of the video
  • Every check shows as waiting or reviewed, so none get lost
  • Form checks show up in the client’s weekly report

Spreadsheets

In a sheet, form videos go through WhatsApp.

Back squat · Set 3

Reviewed
0:11 / 0:24
  1. 0:04Brace before you go down. Take the breath at the top.
  2. 0:11Knees drift in on the way up. Push them out.
  3. 0:19Good depth. Keep this one.
Illustration of a form check review in Grytt
Grytt is built for coaches who take every client seriously. Not just their PRs, but their food, sleep and habits. Their whole life moving forward. Clients who feel that progress stay longer and bring their friends. Happy clients, more income.
Why we built Grytt

Who it’s for

Built for different coaches

Grytt

Built for coaches ready to stop chasing screenshots

  • Clients who log on their phone instead of in a shared sheet
  • Food, habits, photos and form checks in one place
  • Weekly summaries and drafted check-ins
  • Free for 10 clients, with your programs moved over for you

Spreadsheets

Built for full control

  • Custom formulas and any layout you like
  • Your data in a file you already own and can export today

Side by side

Grytt vs Spreadsheets, line by line

Checked October 30, 2026.

Grytt compared with Spreadsheets
What you needGryttSheetsSpreadsheets
Cost up to 10 clientsFreeFree
Clients log on their phoneGrytt is ahead: YesNo
Weekly client summary with the check-in draftedGrytt is ahead: YesNo
PRs, e1RM, volume, muscle heatmapsGrytt is ahead: AutomaticOnly if you build it
Food (barcode + photo), habits, check-insGrytt is ahead: YesManual or WhatsApp
Progress photos and form-check videosGrytt is ahead: YesWhatsApp
Moving your programs overGrytt is ahead: We do it for youn/a
Where Spreadsheets is ahead
Custom formulas, any layoutNoYes
Export your dataNot self-serve yetYes

USD, monthly billing, base plans.

Switching

From sheet to app in three steps

  1. Send us your sheet

    We set up your programs in Grytt, so you don’t start from scratch.

  2. Invite your clients

    By email, username or link, with the invite message and a 60-second walkthrough video.

  3. Start coaching

    Clients log on their phone. You see training, food and check-ins in one place.

FAQ

Questions coaches ask.

Before you move from Spreadsheets.

No. We migrate your programs for you.

Not self-serve yet. Ask us and we’ll help.

We give you the invite message, the link and a 60-second walkthrough video. And they never pay.

Never. Paid plans are prepaid 30-day passes. When one ends you drop to Free and keep your clients and data. Nothing renews unless you buy again.

Their whole week. Your whole roster.

Everything you need.
Nothing you don’t.

Training, nutrition, sleep, habits, form and messaging against the same client, in the same place. Coach more people, more closely, without burning out.

Start for freeLog in

Works the same at 5 clients or 500. See pricing

Checked October 30, 2026. Grytt prices are self-serve plans up to 100 clients; above that, talk to us. Spot something out of date? Tell us and we’ll fix it.