Get the app
Your next session is ready.
Choose a membership on the website, then sign in on your phone.
The C&J training app
The C&J Strength app runs your program one set at a time — the weight, the prescription, the plates on the bar and the rest in between. It works without signal, and it never shows you an ad.
Every program, one membership
On the website, each C&J program is bought on its own. The app puts every one of them in your pocket under a single membership — Olympic weightlifting, powerlifting, general strength and track & field.
Finish a block, start the next. No checkout in between, and new programs are added to the library as they’re released.
36 programs across four disciplines · full library with C&J Max
Session runner
No tables to squint at between attempts. One big card tells you what’s on the bar and how hard it should feel. Tick it made or cross it missed, and the next set slides in.
Every set shows the load and how it’s prescribed — %, RPE, RIR, kg or lb, AMRAP or ALAP.
Built-in calculators turn percentages into kilos. One tap applies them to the session.
Last session’s numbers sit faintly behind this one, so you know what to beat.
A1 / A2 labels, a circular work timer for holds like planks, and metres for carries and sleds.
Swap in an alternative exercise when you can’t do the prescribed one, and leave notes on the session.
Last time · 97 kg × 5
Rest timer
Rest is set per exercise, so it starts the moment you log a set. Check a message, look up an exercise, lock your phone — the timer keeps running.
The countdown stays on screen as a pill wherever you go. Tap it to jump straight back to your session.
REST 1:24It keeps counting with the screen off and tells you when rest is over. When it finishes in the app, you get a liquid ripple and a buzz.
Back squat · set 4 of 4 · 105 kg
Your rest timer runs live on the lock screen and in the Dynamic Island, so you can see how long you’ve rested at a glance.
Plate & equipment visualiser
Set up the kit you actually own and the app draws exactly what to load for every set. If the weight can’t be made, it finds the nearest one you can load and tells you how far over or under you are.
Fixed or adjustable, loaded handle by handle.
Competition or adjustable bells.
Laid flat, for carries, holds and pins.
One-ended loading, drawn to match.
Picked automatically from the exercise. Mixed plate sets are supported — tell it how many of each you own.
Everything else
Basement gyms, garages, dead zones. Everything saves on your phone and syncs when you’re back online.
Snatch & squat · 3 exercises
Read receipts, images, swipe to reply, hold to delete. Set your own background — even a blurred photo. Super and Max members get their own group chats.
Upload a lift from your camera roll and get written feedback. The video plays right inside the app.
Its own tab, or a drawer that slides in mid-session so you never lose your place.
Coach replies show the message text right in the notification.
A translucency slider in settings. Try it — this one changes the whole page.
Memberships
Every membership gets the full session runner, rest timer, plate loader and offline training. The tiers decide how much of the library, and how much of the coach, you get.
A hand-picked selection of programs to train from.
Fill in a short form and get matched to a program from the C&J system.
| Mini£5 | Super£19.95 | Max Bronze£24.95 | Max Silver£39.95 | Max Gold£59.95 | |
|---|---|---|---|---|---|
| Session runner, rest timer, plates | ✓ | ✓ | ✓ | ✓ | ✓ |
| Offline training | ✓ | ✓ | ✓ | ✓ | ✓ |
| Programs | Hand-picked selection | Selected slice | Full library for your level | Full library for your level | Full library for your level |
| Automatic programming | — | ✓ | — | — | — |
| Message the coach | — | — | ✓ | ✓ | ✓ |
| Group chats | — | Super members | Max members | Max members | Max members |
| Technique video reviews | — | — | — | 2x per month | Unlimited |
| Custom programs | — | — | — | — | ✓ |
On candjstrength.com. Payment is handled securely by Stripe.
Free on the App Store and Google Play.
Your tier unlocks the moment you sign in.
Memberships are bought on the website. The app is sign-in only — there are no in-app purchases.
FAQ
No. Memberships are bought on candjstrength.com and paid through Stripe. The app is sign-in only, so there are no in-app purchases and nothing to upgrade by accident.
Yes. Your program, weights and logged sets are stored on your phone. Train with no connection and everything syncs when you’re back online.
It’s a native app for iPhone and Android. Sign in with the same account on either.
No ads, no tracking and no analytics. The app only stores what it needs to run your training.
Super matches you to a program automatically from a short form, gives you a selected slice of the library and a Super group chat — with no coach contact. Max opens the full library for your level, plus coach messaging and the Max group chat. Max Silver adds two technique video reviews a month; Max Gold makes them unlimited and adds custom programs built from a detailed questionnaire.
Set your bar (15, 20 or 25 kg), then tell it which plates you have — bumpers, calibrated, cast iron — and how many of each. Mixed sets are fine. If a weight can’t be made exactly, it shows the nearest you can load.
Get the app
Choose a membership on the website, then sign in on your phone.