Gym Sync
Science-Based Gym Tracker

The only gym training app that combines experience-matched starting weights, Double-Progression autoregulation and a 181-supplement evidence-rated libraryoffline, with nothing harvested from your device.

Stop guessing. Start progressing.

Gym Synchronicity tells you exactly what to lift next, every session — so every workout moves you forward.

Launching 15 August 2026 — join the early-access list below to get your download link first
iPhone & Android Ages 18+ Your data stays on your device
The difference

Most apps just log your workout. Gym Synchronicity decides your next one.

A notebook records what you did. Gym Synchronicity reads your performance, applies proven progression science, and hands you the exact target for next time — with a signal that tells you when to push and when to hold back.

Go

You hit your reps. Add weight and climb.

Hold

Stay put and lock in the gain before pushing.

Back off

Recover smart so you don't stall or strain.

Inside the app

Six reasons members switch to Gym Synchronicity.

Every screen here is the real app — built to turn time in the gym into progress you can measure.

Gym Synchronicity Double Progression screen showing a recommended weight of 87.5 kg and Done, Struggled, Failed signals
01 — Double Progression

Never guess your next weight

Gym Synchronicity calculates your exact next target after every set. Walk in knowing precisely what to lift — two good sessions and the weight steps up automatically. The numbers climb without you doing the maths.

Two greens → weight goes up
Gym Synchronicity exercise library ranked by evidence tier
02 — Evidence, not myths

Train by the science, not gym folklore

Every exercise is ranked by a science-informed tiering system, and key movements are chosen to train muscle in the lengthened position research links to greater growth. Finally, training guidance you can actually trust.

Ranked on the research
Gym Synchronicity weakness tracker scoring exercises from 0 to 100
03 — Weakness tracker

Fix what's holding you back

Gym Synchronicity scores every exercise 0–100 from stalling weight, hard sessions and skipped workouts — so the movements quietly capping your progress surface automatically, ranked most pressing first.

Your weak points, surfaced
Gym Synchronicity I'm training now screen with honest supplement timing reminders
04 — Supplement timing

Make your supplements actually count

Tap "I'm training now" and Gym Synchronicity surfaces the supplements that genuinely benefit from workout timing — and it's honest about the ones where daily consistency matters more. From a library of 181, rated by evidence.

181 supplements, rated honestly
Gym Synchronicity log session screen with green, amber and red traffic-light signals
05 — One-tap logging

A clear signal, every set

Log a set in seconds with a single tap: green, amber or red. Push, hold, or back off — Gym Synchronicity tells you at a glance, so you train hard without overreaching or stalling.

Push · hold · back off
Gym Synchronicity progress charts showing trends over time
06 — Progress & metrics

Watch every number move

Track nine body metrics and see your lifts trend over time. The proof that the system is working, charted session after session — momentum you can actually see.

Trends that keep you going

Your data stays yours.

Everything lives on your device. No tracking, no ads, no selling your information — just you and your progress. Gym Synchronicity works offline, built for the gym floor.

How it works

From first set to steady progress in three steps.

STEP 01

Set your lifts

Add your exercises and starting weights. Gym Synchronicity builds your plan in minutes — no spreadsheets, no setup headache.

STEP 02

Log a set in seconds

Tap in your reps as you go. Gym Synchronicity reads your performance and updates your plan on the spot.

STEP 03

Get your next move

Every session you get a clear target and a go / hold / back-off signal. Progress stops being a guess.

Train smart · Progress always

Be first through the door.

Join the early-access list and we'll send your download link — and your 7-day free trial — the moment Gym Synchronicity goes live on 15 August.

Signup form

Your MailerLite early-access form appears here once it's connected. (Name & email → straight into your list.)

No spam, ever. Unsubscribe in one click. Ages 18+ · See our privacy policy.

Simple pricing

Try it free for 7 days. Keep it if it moves you forward.

One subscription, everything included. Cancel anytime — billing is handled securely by the App Store or Google Play.

Monthly
£9.49 / month
Full access, billed monthly.
Best value
Yearly
£63.99 / year
That's about £5.33 a month.
Save 44% vs monthly

7-day free trial · cancel anytime · ages 18+