# How Sins work

> What Sins are for, where they come from, and what happens when something fails.

Sins are Sinfully's credits: how you pay for photos, videos and other extras. Messages on a paid plan don't use Sins.

## Where Sins come from

- **Your plan.** Premium and Ultimate add Sins every month.
- **Sin packs.** On a paid plan, buy a pack at any time from the store, with bonus Sins on top. Packs are for subscribers.

Your balance is shown at the top of the store and in **Settings**, then **Plan**, with a history of every Sin added and spent.

## What they cost

The price in Sins is always shown before you confirm: on the button when you ask for a photo, and on the create screen before you make a video. Longer and higher-quality videos cost more.

## When something fails, you get them back

If a photo or video you paid for fails, or is refused by our safety checks or a reviewer, **the Sins go straight back to your balance**. You don't need to ask.

## The small print

- **Plan Sins last a month.** The Sins your plan adds each month expire when that month ends; they don't carry over to the next.
- **Bought Sins never expire.** Sins from a Sin pack stay in your balance for as long as your account is open.
- **Free Sins last 30 days.** Welcome Sins, daily rewards and referral rewards expire 30 days after you get them.
- **The soonest to expire are used first**, and **Settings**, then **Plan**, shows when any are due to expire.
- A refund puts Sins back with the expiry they had, and at least a week to use them.
- If your plan ends, the Sins already in your balance stay. Only the monthly top-ups stop.
- Sins have no cash value, can't be exchanged for money, and can't be moved to another account.
- Sins end if your account is deleted or closed.

Our [Terms of Service](https://sinfully.ai/terms#plans-and-credits) have the full details.