Variable Rewards

You could let users open a safe after completing their daily goal, revealing a variable number of coins, so finishing the goal ends with a reveal.

Example from

Mimo

Try making users actively tap to redeem a variable reward of random gems, rather than adding it automatically, as the act of opening may feel more satisfying.

Example from

Duolingo

You could attach a spin-the-wheel variable reward to a routine task, e.g., submitting a meter reading, to give users a reason to complete it each time.

Example from

Octopus Energy

You could experiment with varying the colours and celebration animations, not just the amount, so each variable reward feels fresh and less predictable.

Example from

Finch

You could let new members spin a wheel to win a free gift when joining a loyalty club, turning sign-up into a variable reward rather than a fixed perk.

Example from

Zizzi