Comparison Guide
A90 vs 75 Hard: Which Fitness Challenge Actually Works?
The 75 Hard challenge has gone viral for a reason. It's brutal, simple and forces discipline. But for most people juggling work, family and a real schedule, it isn't built to last. A90 takes a different approach: a personalised training phase that adapts to your life instead of breaking when life pushes back. Here's exactly how they compare.
What is the 75 Hard challenge?
75 Hard is a 75-day mental toughness programme created by Andy Frisella. The rules are fixed for everyone:
- Two 45-minute workouts every day, one of them outdoors
- Follow any diet of your choice with no alcohol and no cheat meals
- Drink one gallon of water
- Read 10 pages of a non-fiction book
- Take a daily progress photo
- Miss any task on any day and you start again on day one
It's a short, intense challenge to prove to yourself that you can do hard things. What it isn't is a long-term training and nutrition system.
What is A90?
A90 Training Club is an intelligent personalised training app. Your first phase runs 30, 60 or 90 days and your training, nutrition and recovery are built around your body, goals, equipment and schedule, and the plan adapts every week based on how the previous week actually went. Miss a session and your week reshuffles. Travel for work and your meals adjust. The system is built so you can keep going.
Side-by-side comparison
| Element | 75 Hard | A90 |
|---|---|---|
| Length | 75 days | 90 days, then continues |
| Personalisation | None - same rules for everyone | Built around your goal, body and schedule |
| Training | Two 45-min workouts daily | Adaptive plan, gym or home |
| Nutrition | Choose any diet, no cheats | Personalised meals, allergies & preferences |
| Recovery | Not addressed | Built into the weekly plan |
| Miss a day | Restart at day one | Week reshuffles, no restart |
| Goal | Mental toughness streak | Lasting physical results and habits |
| Sustainability | Hard to maintain after | Built for life after day 90 |
Where 75 Hard wins
If you want a short, brutal proof-of-discipline streak, 75 Hard delivers. The simplicity is the appeal: same rules, no decisions, no excuses. For some people that's exactly the reset they need.
Where 75 Hard falls short
- It ignores recovery, sleep and stress - all things that actually drive results.
- Two workouts a day with no flex is unrealistic for most people long-term.
- The restart rule punishes life events instead of working around them.
- No training or nutrition personalisation, so progress is uneven and often unsafe.
- When day 75 ends, there's no system to keep you going.
Why A90 is built for results, not restarts
A90 is designed for the people 75 Hard burns out: busy adults who want real, visible change without sacrificing every other part of their life. The plan flexes with your week, scales with your progress, and keeps going after day 90 - so the habits and the physique you build actually stick.
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FAQ
What is the 75 Hard challenge?
75 Hard is a 75-day mental toughness program created by Andy Frisella. It requires two 45-minute workouts a day (one outdoors), a strict diet of your choice with zero alcohol or cheat meals, a gallon of water daily, 10 pages of non-fiction reading, and a daily progress photo. Miss any task and you restart on day one.
How is A90 different from 75 Hard?
75 Hard is a fixed 75-day challenge with the same rules for everyone and a hard restart if you slip. A90 is an intelligent personalised training app. You start with a 30, 60 or 90 day phase built around your goals, experience, schedule and equipment, then keep progressing into the next phase. If life gets in the way you can move days and swap exercises instead of resetting to day one.
Is 75 Hard sustainable long-term?
75 Hard is designed as a short mental toughness challenge, not an ongoing fitness programme. Two workouts a day with no flexibility is hard to maintain alongside work, family and recovery once the 75 days end, which is why most people drop off shortly after.
Can A90 give me the same mental toughness benefit?
A90 builds discipline through consistency rather than punishment. You commit to a training phase that scales with you, and when it finishes you start the next one, so you keep showing up instead of restarting. The result is durable habits and visible physical progress, not a streak you have to defend.