Builder
Custom workout builder
Pick exercises, set reps, weight, rest and order, then save the workout straight to your Speediance account. Search the full exercise library, mark favourites and hide the movements you never want to see.
Free web app for Speediance owners
Plan your Speediance workouts in the browser
GM Manager is a web app for your Speediance account. Build a custom Speediance workout on a laptop, schedule it in a calendar, follow your progress and keep your own copy of your data. Everything you save lands in the same account your machine already uses.
GM Manager is free. MCP, REST API and the AI coach are optional add-ons.
Everything your Speediance account holds, on a real screen
The phone app is fine next to the machine. GM Manager is for the planning you would rather do sitting down, with a keyboard and a full month in view.
Calendar
Plan the week ahead
Put workouts on the days you train and see the whole month at once, with what you planned and what you actually did side by side.
Progress
Progress and history
Every finished session, set by set. Per exercise charts, personal records and a training heatmap built from your own history.
Library
Shared workouts and exercises
Publish a workout or a custom exercise you are proud of, and pick up what other people have shared. A shared item is a recipe you copy into your own account, so you can edit it freely.
Health
Health, body and cardio
Recovery and readiness, body metrics over time, and the runs, rides and walks that reach your account from Apple Health or Health Connect.
Gym Monster
Notes on your Gym Monster
Write a private note for any exercise and it appears on the Gym Monster screen when that exercise comes up. Set it on the web, through MCP or the API, or let your coach leave a cue. Needs GMVoice connected in Hybrid or Wi-Fi mode.
Coach
AI coach, if you want one
An optional add-on that writes a training program from your real history and adjusts it week by week. The rest of GM Manager works without it.
See the Speediance web app before you sign in
Screens from a real Speediance account, with the personal fields replaced. Same app you get when you log in, in your browser's light or dark theme.
How it works with your Speediance account
Three steps, no install, no second account to create.
Open gm-manager.com
It runs in the browser on a laptop, a tablet or a phone. There is nothing to download.
Sign in with your Speediance account
The same e-mail and password you use in the Speediance app. Your workouts, history and body data are already there.
Build, schedule and train
Everything you save goes back to your Speediance account, so the machine sees it the next time you train.
Optional add-on
An AI coach that reads your Speediance history
The coach is not a generic plan. It starts from what your Speediance account already knows about you: the sessions you finished, the loads you handled, the days you tend to train and the recovery data that came in overnight.
- A program, not a one off workout. A weekly split built around your goal, your available days and the time you have.
- Sessions written for the machine. Each one lands in your account as a normal workout, ready to start.
- It adapts. Skipped a day, slept badly, tweaked a shoulder: tell it in chat and the week is rearranged.
- It remembers. Injuries, movements you avoid and schedule constraints carry over to every future session.
GM Manager is free. MCP, REST API and the AI coach are optional add-ons.
What the coach never does
It does not invent numbers. Loads come from your assessed strength and your own set history, and a movement you have marked as one to avoid stays out of every session it writes.
Works with your AI assistant and your Speediance data
Your data does not have to stay inside one app. GM Manager can hand it to the tools you already use, with a token you create and can revoke at any time. MCP and the REST API are optional add-ons.
MCP for Claude and ChatGPT
Connect GM Manager as an MCP server and ask your assistant to look at your training and plan the next session. It reads your workouts, history and calendar, and can create or schedule a workout when you ask it to.
REST API
A documented REST API with your own token, for scripts, dashboards or anything else you want to build on top of your training data.
.ics calendar feed
Subscribe to your planned sessions from Apple Calendar, Google Calendar or Outlook, and your training shows up next to the rest of your week.
CSV export
Download your training history and body data as CSV files whenever you want, and keep your own copy.
Your Speediance account stays yours
- You sign in with your Speediance account. There is no separate GM Manager account to create. Your Speediance login is stored encrypted, with the key that unlocks it kept apart from the database, so the app can sign you in again when the session expires. Removing your profile deletes it.
- Nothing to install. No app, no extension, no device access. It is a website.
- You stay in control of the connections. API tokens, the calendar feed and the AI assistant connection are all yours to create and revoke.
Speediance and GM Manager: common questions
Can I build a custom Speediance workout from a laptop?
Yes. The Builder runs in any browser, so you can put a custom Speediance workout together with a keyboard and a big screen. It is saved to your Speediance account, so the machine picks it up like any other custom workout.
Can I export my Speediance data?
Yes. GM Manager exports your training history and body data as CSV files, and it publishes your planned sessions as an .ics calendar feed you can subscribe to. There is also a REST API with your own token.
Is the Speediance AI coach included?
GM Manager is free. MCP, REST API and the AI coach are optional add-ons. Without them you still get the builder, the calendar, progress, history and the exports.
Can I plan my Speediance workouts in a calendar?
Yes. You can schedule any workout on a day, see the whole month at a glance and follow what you actually trained next to what you planned.
Is GM Manager free?
GM Manager is free. MCP, REST API and the AI coach are optional add-ons.
Is GM Manager made by Speediance?
No. GM Manager is an independent web app built by GMVoice and it is not affiliated with Speediance. It signs in with your own Speediance account and works with the data that account already holds.
Which Speediance machines are supported?
GM Manager works with the Speediance account rather than with one machine, so any machine that syncs to the Speediance app is covered, including Gym Monster and Gym Monster 2.
Paying for a subscription
The web app is free. The paid tiers are billed monthly, in advance, through a payment gateway; API access can also be paid for a year at a time. Prices include VAT for customers in the EU; customers in Norway, Iceland and Liechtenstein are not charged VAT, and elsewhere Link calculates and includes any local tax.
- Who sells to you depends on where you are. In the European Economic Area payments are processed by the Comgate payment gateway. Comgate is operated by Comgate, a.s., a payment institution licensed and supervised by the Czech National Bank. For buyers outside the EEA, or paying with a card issued outside it, the purchase is sold through Link, Stripe's checkout: Link is the seller, calculates and includes any local tax, may show the price in your currency, and sends the receipt and invoice. Your bank statement then shows LINK.COM. You pay on the provider's own secure page, so we never see or store your full card number.
- By card. The gateway asks for the card number, the expiry date and the CVC code, and your bank confirms the payment with 3-D Secure, usually a tap in your banking app or a code by SMS. The result comes back within seconds and the subscription switches on straight away. Comgate's own documentation, in Czech: card payments.
- By bank payment button. Instead of a card you pick your bank, at Comgate. Comgate opens your internet banking with the payment order already filled in, and you only confirm it there. The subscription switches on as soon as the gateway confirms the transfer. Comgate's own description, in Czech: bank transfers.
- A question or a complaint about a payment. Write to us at contact@gmvoice.tech. You can also reach the gateway operator directly: Comgate, a.s., Gočárova třída 1754/48b, Hradec Králové, Czech Republic, podpora@comgate.cz, +420 228 224 267, or, for a purchase through Link, support.link.com/topics/sold-through-link.