Get Strict

You lift. Your AI coaches.

Strict is the iPhone training log your AI assistant can read and program. Ask for a plan and it lands on your phone. Log each set in one tap, and your coach sees every one.

Works with Claude, ChatGPT, Cursor and other MCP assistants. The log is free; the AI coach is Strict Pro, free during the beta.

Your assistantStrict connected

I want a clean tuck planche past 15 seconds and stronger weighted pull-ups. Build me an 8-week block.

get_exercise_historyTuck planche · 9 sessions

Your best clean hold on the floor is 14 sec, and it hasn’t moved in three weeks. Planche leads the block, weighted pull-ups come second, compression stays light, and week 8 is a deload.

create_programPlanche + pull strength · 8 weeks

activate_programStarts this week

It’s on your iPhone after the next sync, starting this week.

Strict showing the program Planche + pull strength: week 1 of 8 this week, with planche as the high training emphasis.
Sample conversation and training data.

Bring the assistant you already use.

Strict connects through MCP, the open standard AI assistants use to work with other apps. Connect once, and your assistant reads every workout you log. If you allow it, it writes your programs too.

  1. Train with Strict

    Log workouts on your iPhone. Strict is a complete training log on its own, with no account and no signal needed.

  2. Connect your assistant

    In Strict’s Settings, choose Connect an assistant and sign in with Apple. Then add Strict as a connector in Claude, ChatGPT or Cursor with this address. Connecting an assistant is part of Strict Pro, free during the beta.

    https://api.strict.training/mcp

  3. Decide what it can do

    Your assistant can always read your training. Turn on Allow edits and it can also create and change programs, saved workouts and custom exercises. Sets you logged stay exactly as you logged them.

  4. Ask like you’d ask a coach

    Your assistant sees the same history you do, down to the setup of every set. Tap a request to copy it.

Planning happens in chat. Training happens here.

Between sets you have tired hands and a few seconds. Strict puts the next set in reach, already filled in, one tap from logged.

Strict's log sheet for set 3 of Tuck planche: 13 sec, one more than set 2, above a Log 13 sec button.
Try it: tap Log.
Strict's review after finishing: 4 of 12 sets, 3 clean, with every set drawn as a stroke and the form-broken hold outlined.
Finish, and the review draws every set.

  • Every number says where it came from

    The next set starts from your last set or last session, and says which. Change it with a drag or a tap.

  • Undo instead of “Are you sure?”

    Logging is one tap. If you got it wrong, Undo stays on screen for ten seconds.

  • Rest on your Lock Screen

    The countdown runs on the Lock Screen and in the Dynamic Island, and you can log the next set without opening the app.

  • Saved on your iPhone first

    Every set saves on your phone the moment you log it, so a basement gym with no signal is fine.

Progress that only counts clean sets.

Strict compares a set only with sets done the same way. Your assistant reads the same history, so its advice rests on numbers you can trust.

Tuck planche

Floor · Full hold · 9 sessions

↑ 5 sec in 7 weeks

Best clean hold

14sec

Sat 10 Oct · Latest

22 AugToday
Sample data. Holds on parallettes would be a separate series.

  • Clean, form broke or failed

    Mark each set honestly. Form-broken and failed sets stay in your history as evidence, but never count as a best.

  • Same setup, same series

    Variation, apparatus, assistance and range of motion travel with every set, so an easier setup never inflates your number.

  • Next targets, on your say-so

    When every set reaches the top of the range, Strict suggests the next target. Your plan changes only when you say so.

Next time

Weighted pull-up Up 2.5 kg

4 × 4 at 12.5 kg

Every set was clean at 10 kg.

Your training stays on your iPhone.

Strict works fully without an account. You sign in only to connect an assistant, and you decide what it can do.

  • Workouts, programs and settings stay on your iPhone and in the backups you make.
  • With an account, a copy of your training syncs to Strict’s server so the assistants you connect can read it.
  • Each assistant gets read access, and edits only if you allow them. None can change a set you logged.
  • Disconnect an assistant in Settings and it loses access within about a minute.
  • Delete your account and Strict deletes the server copy. Your workouts stay on your phone.

Read the privacy policy

Connect an assistant

Allow Claude to access your training?

  • Access goes to claude.ai.
  • Signed in to Strict with Apple.
The page your assistant opens when it asks for access.

Start free.

The training log is free. The AI coach is Strict Pro, and it’s free while Strict is in beta.

Strict

Free

  • Unlimited workouts, sets and history
  • Programs, saved workouts and Quick workouts
  • Progress from clean sets in Analyze
  • Rest on the Lock Screen and in the Dynamic Island
  • Backups you keep
Download on the App Store

Strict Pro AI coach

Free

During the beta

  • Everything in Strict
  • Connect Claude, ChatGPT, Cursor or any MCP assistant
  • Your assistant reads every workout, set and trend
  • With Allow edits, it writes and adjusts your programs
Download on the App Store

Questions

What’s free, and what’s in Strict Pro?

The training log is free: workouts, programs, saved workouts, Analyze, rest and backups. Strict Pro is the AI coach: connecting Claude, ChatGPT, Cursor or another MCP assistant that reads your training and, if you allow it, writes your programs. Pro is free during the beta.

Which AI assistants work with Strict?

Assistants that can add a remote MCP connector, including Claude, ChatGPT and Cursor. In ChatGPT, custom connectors may need developer mode.

Do I need an AI assistant to use Strict?

No. Strict is a complete training log on its own: programs, saved workouts, Quick workouts, rest and progress all work without one.

What can my assistant see and change?

It can read your workouts and sets, programs, saved workouts, exercises and progress over time. If you turn on Allow edits, it can also create and edit programs, saved workouts and custom exercises, and switch your active program. It can’t change or delete a workout or set you recorded.

When do my assistant’s changes reach my phone?

The next time Strict syncs, outside a workout. A change never lands in the middle of a workout you’re logging.

Do I need an account?

Only to connect an assistant. You sign in with Apple, and your training stays on your iPhone either way.

Does Strict work for gym lifts and calisthenics?

Yes. Log reps, weighted reps or timed holds, from squats and bench press to planche, levers and handstands. Strict keeps each setup apart, so a banded hold never mixes with a strict one.

Does it work offline?

Yes. Every set saves on your iPhone first, and syncing to your assistant waits until you’re back online.

Is there an Android or web version?

Not today. Strict is for iPhone.

Your next workout is one message away.

Get Strict on your iPhone, connect the assistant you already use, and ask it for your first program.

Download on the App StoreFree to start