Birthday photos across the years: the growth chart nobody made on purpose

Every birthday gets photographed; almost no one ever views them as the series they secretly are.

The idea

Line up the cake photos across years in one rotation and the app performs the time-lapse for you — age three's frosting chaos floating up beside age thirteen's practiced smile.

In practice

Do it per kid, or per adult: your own birthdays across decades are a stranger, better series than you'd expect.

Setting it up

Ten minutes, once: install Bubbles In Time ($2.99, one-time), pull the relevant photos from your gallery into the rotation, set a frequency that feels right, and let the floating layer do the rest. Everything stays on your device — no account, no uploads, no ads between the memories — and the pause switch is always one tap away.