OUR STORY

BUILT BY SOMEONE
WHO TRAINS.

AX Core was built by a solo developer who got tired of fitness apps that charge £80 a year for features you use three times. There's a better way.

THE STORY

WHY WE BUILT THIS

The fitness app market is saturated with subscription products that lock basic features behind annual paywalls. £29.99 a year. £59.99 a year. £79.99 a year. For a workout logger.

AX Core started from a simple question: what if a serious training app just cost what it cost, once, and then got out of your way? No renewal reminders. No feature gating designed to push upgrades. No algorithm deciding what you should train today.

AX Core is built for people who already know what they're doing in the gym. Athletes who follow structured programmes. Hyrox competitors who need race-specific prep. Strength trainees who want their previous session data front and centre without digging for it.

The recovery dashboard, the streak tracking, the 13 expert Pro programmes — all of it is built around one principle: give serious athletes a serious tool, charge them fairly for it once, and keep building.

AX Core is developed by AX Studio Labs Ltd, a UK-based independent app studio. It shares a backend and ecosystem with AX Rivals, the competitive fitness challenge app. Both products are built to the same standard: no ads, no dark patterns, no subscription treadmill.

13
PRO PROGRAMMES
£6.99
ONE-TIME PURCHASE
0
ADS. EVER.
∞
SESSION HISTORY
PRINCIPLES

HOW WE BUILD

01
Pay Once. Own It.
One-time purchase. No subscription. No renewal. The app you paid for is the app you keep — including all future programme additions to the Pro Library.
02
No Ads. Ever.
Your workout data is yours. We don't sell it, share it with advertisers, or use it to target you. AX Core products are funded by purchases, not attention.
03
Built For Athletes.
Not for beginners who need hand-holding, not for casual users who log once a month. AX Core is built for people who train consistently and take their performance seriously.
04
Expert Content.
The 13 Pro programmes aren't filler. Every programme has a clear methodology, progressive structure, and a specific target athlete. The Hyrox content in particular is built for competition.
05
Privacy First.
HealthKit data never leaves your device. Workout data is stored securely with row-level security. UK GDPR compliant. Account deletion within 30 days on request.
06
Keep Building.
AX Core is a living product. New programmes, new features, performance improvements — Pro purchasers get everything. The price goes up as the product grows. Early adopters win.
THE ECOSYSTEM

TWO APPS. ONE ACCOUNT.

YOU ARE HERE
AX CORE

The serious training tracker. Log workouts, follow expert programmes, monitor recovery, track streaks. The foundation of your training data.

EXPLORE AX CORE →
COMPANION APP
AX RIVALS

The competitive layer. Challenge rivals on strength, steps, streaks and cardio. Climb the league from Bronze to Aurum. AX Rivals subscribers get AX Core Pro at £3.99.

VISIT AX RIVALS →