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Free forever trackerAI coach built in

Log it once.
Ask it anything.

Sylas is a workout tracker with an AI coach that has read every set you have ever logged. The tracker is free forever. The coach is why you will stay.

Download on the App StoreSee how the coach works

iPhone · works offline · no set limits, ever

The tracker

Fast where it counts. Free where it matters.

Log in seconds

Type “3×10 bench at 60” and it is logged. Rest timers, supersets, warm-ups, drop sets — one tap each.

Bench Press (Barbell)
160 kg × 862.58
260 kg × 862.58PR
360 kg × 762.5–

Watch the numbers move

Volume, records, per-exercise trends. Every chart reads straight from your log — nothing to maintain.

Weekly volume8 weeks
12
Records
+9%
Volume

Free forever. Not freemium.

Logging, plans, charts, full history, export — free, with no set caps and no locked screens. The AI coach is the only thing that costs money, because it costs us money.

  • Unlimited workouts and plans
  • Every chart, every record
  • Full data export, always
  • Log workouts offline

Plans

Plans that rewrite themselves.

Build any split — upper/lower, PPL, your own. Then, when a lift stops moving, ask the coach to change the plan. It reads your last results and edits the actual workout, not a copy in a chat window.

Upper / lower4 days
Upper AUpdated by coach
Bench 65 kg × 6 · Row · OHP · 3 more
Lower ATuesday
Squat · RDL · Leg press · 2 more
Upper BThursday
Incline bench · Pull-up · Dip · 3 more
Lower BSaturday
Deadlift · Front squat · Lunge · 2 more

Plans are free, like the rest of the tracker. You review coach suggestions before applying them.

Coachreviewing Upper A
Change Upper A based on my last results — I want my bench moving again.
You have benched 62.5 kg × 8 on every set for three straight sessions. I suggest opening at 65 kg × 6 with a back-off at 60 kg × 10. Review the proposed change before applying it.
Read Upper A · your last 6 bench sessions
Show me the change.
The suggestion is ready to review. Tap Apply to update Upper A, or leave your current plan as it is.

The coach

Stop copy-pasting your workouts into a chatbot.

Generic AI knows nothing about your training. The Sylas coach has your entire history — every set, weight and note — and cites exactly what it looked up. Ask about your bench, your split, your plateau. No screenshots, no exports, no context windows.

Reads your log, shows its work. Every answer footnotes the sessions it checked.

Answers while you lift. Ask about a stalled lift, your next progression, or a record in the session you are doing.

Acts on the answer. “Build me the light week” produces a suggestion you can review and apply to your plans.

Coachknows all 214 of your sessions
Am I actually getting stronger or just tired?
Stronger. Your five main lifts are up 4–11% on estimated one-rep max since May. The tiredness is real too — you have not taken a light week in nine.
Compared 12 weeks of top sets across 6 lifts
Schedule one, then get me to a 100 kg bench by December.
I suggest a light week, then bench twice weekly. Review the proposed plan and adjust progressions to how you recover; a target date is not a guarantee.
Progression

You hit 62.5 kg × 8 on every bench set. Ask the coach whether 65 kg is a sensible next step.

Stall watch

Squat volume down 18% over four weeks. Ask the coach whether a reset week would help.

Records

That 180 kg pull beat your all-time best by 5 kg. Logged, badged, remembered.

Exportone tap
sessions.json
214 sessions · every set, weight and note
sets.csv
6,180 rows · spreadsheet-ready
Or skip the export
The coach already has the context — zero copy-paste

Your data

Speaks fluent LLM.

Your training history exports as clean JSON or CSV in one tap — take it to any model, notebook or spreadsheet you like. It is your data, and it never needs rescuing from us. Prefer no friction at all? The in-app coach reads the same data live.

Export is free, like everything else in the tracker.

Questions, answered.

Yes. Logging, plans, charts, history and export are free with no set caps and no locked screens. Only the AI coach is paid, because running it costs us money per message.

Bring your next session.

Free forever tracker. An AI coach when you want one. iPhone.

Download on the App Store