28 days. One end date. No excuses.

Finish week four.

You've quit before. This time there's a fixed end date, a daily challenge, and a small group that notices when you miss a day.

14-day free trial. US$9/month after. iOS only.

09:41

Good morning, Alex.

Day 7 of 28

7
Finishing 21 Oct 2026

Today's Challenge

3 sets of 10 push-ups with a 60-second hold at the top of the last rep.

Strength track

Your squad today

No library. No live classes.
Just finish week four.

Every paid fitness app gives you more content. None of them care whether you log week four. We do one thing: get a repeat quitter to tap "Done" on day 28.

A fixed end date

You see your finish date before you sign up. It doesn't move. That's the deal.

One daily challenge

Open the app. See one challenge. Tap Done. Under 30 seconds. That's the whole thing.

A squad that notices

Five to eight people starting within 48 hours of you. Anonymous. They see your tick, or your gap.

Pick your track

The only personalisation in FitSphere. One choice, then your 28 days begin.

Strength: 28 daily challenges built around progressive bodyweight loading. From day 1 push-up holds to week-4 compound circuits. No equipment, no gym membership.

Day 19. The end exists.

Every day you open FitSphere, there is one challenge. Not a library. Not a choice. One challenge. You tap Done and you're done. That's it. No pep talk.

The streak is visible. The end date is visible. Two things. Nothing else.

See how it works
Person completing a FitSphere daily workout challenge

Plain answers

Four weeks. That's the deal.

You've quit before. This one has an end. Start today and we'll show you the date you finish.

Start your 28 days

iOS only. 14-day free trial. US$9/month after that.