5050 Money Challenge

The 100 envelope challenge, on your phone. Now with a History tab: see your savings chart, your daily streak, and every save you've made. Tap, save, repeat.

The math is simple: 1 + 2 + 3 + … + 100 = 5050.

A hundred buttons, each one stamped with a different amount from 1 to 100. Set that amount aside in real life, then tap the button to mark it done. Mark one at a time, or a few at once. Whatever pace works for you. Check off all hundred and you've saved exactly 5050.

That's the whole app. Inspired by the 100 envelope challenge.

In Settings, choose your currency and how much each button is worth, from 1 to 10,000. Your final total lands between 5,050 and 50,500,000 in any currency.

35+ currencies. Want a reminder? Pick daily, every few days, or once a month. Or skip them and tap when the mood hits.

Every tap goes into History. See your savings chart, your daily streak, and every save you've made, grouped by day with amount and time. Watch it grow.

No accounts. No subscriptions. The buttons just sit there, waiting.

An easy way to start saving. A satisfying one to reach your goal.

Start with button 1. Or 47. Or any other.