What is the 75 day challenge?

It's a 75-day commitment to a fixed set of daily tasks. The original, 75 Hard, requires two workouts, a gallon of water, a strict diet, reading, and a progress photo every day — miss one and you restart. Dozens of gentler variations now use the same format with different rules.

Which 75 day challenge is best for beginners?

75 Soft. One daily workout with a weekly rest day, sensible eating, water, and reading is demanding enough to change your habits without the all-or-nothing reset that ends most first attempts. If even that feels far from your baseline, build a custom version with three tasks you can do on your worst day.

Can you make your own 75 day challenge rules?

Yes — the 75-day format works for any daily, checkable habit. Keep it to three to five binary tasks and decide upfront what a missed day means. Her 75 includes a custom challenge builder, so your own rules get the same daily checklist, proof photos, and streak tracking as the built-in tracks.

Do you have to start over if you miss a day?

Only in the original 75 Hard. Most variations, including 75 Soft, treat a missed day as one lost day rather than a reset to zero. Her 75 builds streak protection and missed-day recovery into most of its tracks, so one bad day doesn't erase weeks of progress.

What should I do every day for 75 days?

Whatever moves you toward one clear goal: movement and water for fitness, no added sugar for a reset, journaling and time outdoors for mental wellness, 20 pages a day for reading, or no non-essential spending for a budget challenge. Three to five tasks, each with a yes-or-no answer at the end of the day.

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Guide · Her 75

75 Day Challenge Ideas: Find the One You'll Actually Finish

Become her — in 75 days.

The 75 day challenge started as one thing: 75 Hard, a deliberately brutal program with zero flexibility. But 75 days is really just a format — long enough to change your habits, short enough that the finish line feels real. What you fill those days with is entirely up to you. This guide is a menu: the classic version, the gentler 75 Soft, themed challenges like Glow Up, Sugar-Free, and Mental Wellness, plus non-fitness ideas like reading and budgeting challenges. More importantly, it covers how to choose rules you can keep for all 75 days, because the best challenge isn't the hardest one — it's the one you finish. If you want a tracker for any of these, Her 75 ships most of them as built-in tracks and lets you build the rest yourself.

Choose Your Hard

The Classic: 75 Hard

The original 75 Hard is famous for its strictness: two 45-minute workouts a day (one outdoors), a gallon of water, a diet you follow with no cheat meals and no alcohol, ten pages of nonfiction reading, and a daily progress photo. Miss any single task and you start over at day one. That all-or-nothing structure is the point — it's marketed as a mental toughness program, not a fitness plan. It works for some people precisely because there's no negotiation. But the restart rule is also why so many attempts end in week two. If you've failed it before, the answer usually isn't more willpower — it's a version whose rules match your actual life. That's what the rest of this list is for.

The Gentler Take: 75 Soft

75 Soft keeps the 75-day format but softens the rules: typically one 45-minute workout a day with one rest or active-recovery day per week, around three liters of water, eating well without a rigid diet, and ten pages of reading. Crucially, most people who run 75 Soft drop the restart rule — a missed day is a missed day, not a reset to zero. Skeptics call it 75 Hard with the hard removed. In practice, it's the version most people can sustain alongside a job, kids, or a social life, and 75 days of consistent moderate effort beats 12 days of maximum effort every time. If it's your first 75-day challenge, start here.

Themed Ideas: Glow Up, Sugar-Free, Mental Wellness

You don't have to organize your 75 days around workouts at all. A Glow Up challenge centers on self-care: skincare, sleep, hydration, movement you enjoy, and showing up for yourself daily. A Sugar-Free challenge has one anchor rule — no added sugar — plus a couple of supporting habits like water and a daily walk, and its binary nature (you either had the cookie or you didn't) makes it easy to track honestly. A Mental Wellness challenge swaps gym sessions for journaling, meditation, time outdoors, and a screen-time cap. Each of these exists as a built-in track in Her 75, alongside a Better Me track, so you're not translating a Pinterest graphic into your own checklist.

Non-Fitness Ideas: Reading, Budgeting, and More

The 75-day format works for anything with a daily, checkable action. Some ideas: a reading challenge (20 pages a day gets you through roughly six books); a no-spend or budgeting challenge (no non-essential purchases, log every expense, cook at home); a digital detox (no social media before noon, phone out of the bedroom); a creative challenge (write 300 words or sketch one page daily); or a skill challenge (25 minutes of language practice or an instrument every day). The rules that make fitness challenges work apply here too — each task should be binary and take under an hour combined. Seventy-five days of any of these compounds into something you can see.

How to Pick a Challenge You'll Finish

Four rules of thumb. First, match the challenge to your current baseline, not your aspirational self — if you work out once a week now, two-a-days will break you by day ten. Second, cap it at three to five daily tasks; every rule you add multiplies the ways a day can fail. Third, make every task binary — 'drink 3L of water' is checkable, 'eat better' is not. Fourth, decide upfront what a missed day means. A hard reset motivates a small minority and quietly ends the challenge for everyone else, so build in recovery: a missed day costs you the day, not the previous forty. Pick the hardest challenge that passes all four tests — not the hardest one on the list.

Tracking It: Built-In Tracks or Build Your Own

Any of these ideas fails without a daily system, because deciding what counts every morning is where challenges quietly die. Her 75 handles this with pre-built tracks — 75 Soft, full hard mode, Glow Up, Sugar-Free, Mental Wellness, and Better Me — plus a custom challenge builder for the reading, budgeting, or detox ideas above. Each day is a simple missions checklist, and you can snap a proof photo per task; those photos land in a calendar of your challenge, so day 75 comes with a visual record of the whole journey. Most tracks include streak protection, so one off day doesn't erase your progress. Add friends to follow each other's day and streak, check off missions from the home-screen widget, and everything stays in your own private iCloud. The app is free to download; Premium unlocks every challenge.