KingSumo vs Prefinery Comparison 2026
Both cover giveaways & referrals. Here is what separates them on price, billing, what you can take with you, and coverage.
At a glance
- Only KingSumo has a free tier.
Side by side
KingSumo | Prefinery | |
|---|---|---|
| Starting price | From $49 | From $49 |
| Pricing model (they differ) | Free plan, paid tiers | Free trial, then paid |
| Free tier (they differ) | Yes | No |
| Billing (they differ) | One-time purchase | Monthly or annual |
| Free trial (they differ) | None | 14 days |
| API | Not stated | Yes |
| Data export | Not stated | Everything, in an open format |
| Their cut | Not stated | Not stated |
Shaded rows are where the two answers disagree and both listings have answered. A row where one side has not stated a fact is left plain, because silence is not a difference.
KingSumo
Giveaways with a lifetime price tag
KingSumo runs the bonus-entry giveaway that grew half the email lists of the last decade, and it sells a lifetime licence rather than a subscription. The free tier covers unlimited giveaways with bonus entries and reminder emails. Branding controls, tracking and integrations are all on the paid side, and the sponsored entry stays on your giveaway until you pay.
Only on this side
- Covers newsletter & email
Prefinery
Waitlists where position moves on referrals
Prefinery runs the waitlist you put up before launch and gives every signup a queue position that improves when they bring somebody. That mechanic is the product, and the rest is the plumbing around it: the embedded form, the emails, the fraud checks and the export. It bills on how many people join.
Our note
Buy this for the referral queue, not for the email sending, and check the numbers against what a waitlist is worth to you: $49 a month is cheap for a launch and expensive for a list that sits still.
Only on this side
Ratings are the average of reviews readers left. The facts are stated by each tool’s own listing and are not verified by CloutStack. How we make money.