it:ad:uservoice

SleekPlan
- $0 to $15/month
  - Embedded - some nice features available in free.
  * Featurebase
- Free (but more likely $30/month)
nolt
- $25/board/month
Uservoice:
- 799/month
- https://support.microsoft.com/en-us/office/uservoice-pages-430e1a78-e016-472a-a10f-dc2a3df3450a
Mopinion:
- 229/month
Featureupvote
- 99/month