---
title: rarityPercent
framework: gamekit
role: symbol
role_heading: Instance Property
path: gamekit/gkachievementdescription/raritypercent-4bh6k
---

# rarityPercent

The percentage of players of this game that earned the achievement.

## Declaration

```swift
var rarityPercent: Double? { get }
```

## Discussion

Discussion The rarity percentage ranges between 0.0 and 100.0, inclusive, where 0.0 indicates that no player has earned the achievement, and 100.0 indicates that every player has earned the achievement. This property is nil if there isn’t enough data to compute the rarity of the achievement.

## See Also

### Reading and Writing Achievement Properties

- [identifier](gamekit/gkachievementdescription/identifier.md)
- [title](gamekit/gkachievementdescription/title.md)
- [unachievedDescription](gamekit/gkachievementdescription/unachieveddescription.md)
- [achievedDescription](gamekit/gkachievementdescription/achieveddescription.md)
- [maximumPoints](gamekit/gkachievementdescription/maximumpoints.md)
- [image](gamekit/gkachievementdescription/image.md)
- [isHidden](gamekit/gkachievementdescription/ishidden.md)
- [isReplayable](gamekit/gkachievementdescription/isreplayable.md)