Twine

Twine lets you and friends or family save toward shared goals like a vacation, wedding fund, or house down payment. You pick from three investment portfolios (conservative, balanced, or growth) and the app invests your combined pool accordingly, earning returns instead of sitting in a checking account. The annual fee is 0.60%, which is reasonable for what you get compared to robo-advisors.

College students planning group experiences or those saving with a partner find Twine's transparency useful because everyone sees how much has been saved and how investments are performing. The pooled approach makes it psychologically easier to stick to a goal with others cheering alongside you. It's particularly good if you'd otherwise let savings sit idle in a regular account, since even a balanced portfolio historically beats inflation over a few years.