KingSumo vs ShortStack Comparison 2026
KingSumo sells a one-time lifetime licence, $49 through AppSumo, for the bonus-entry giveaway widget that built email lists for a decade, with a free tier that runs unlimited giveaways but keeps a sponsored entry on them until paid. ShortStack builds the whole contest instead, landing page, entry form, rules and the random draw, priced by monthly page views rather than sold outright, free forever with view limits or from $24 a month billed annually. KingSumo is a widget you pay for once; ShortStack is a hosted contest platform you subscribe to.
At a glance
- ShortStack starts cheaper, at $24.
- Both have a genuinely free tier.
Side by side
KingSumo | ShortStack | |
|---|---|---|
| Starting price (they differ) | From $49 | From $24 |
| Pricing model | Free plan, paid tiers | Free plan, paid tiers |
| Free tier | Yes | Yes |
| Billing (they differ) | One-time purchase | Monthly or annual |
| Free trial | None | Not stated |
| API |
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
ShortStack
Contests and giveaways with entry rules
ShortStack builds the contest itself, not only the widget: a landing page, the entry form, the rules that decide what counts as an entry, and the random draw at the end. Emails to entrants go out from the same place. Pricing is by page views rather than by entries, and overage is charged per thousand once a campaign catches on.
Only on this side
- Covers landing pages & funnels
- Works with Instagram
- Works with Facebook
Why people weigh these two
- ShortStack instead of KingSumo
- ShortStack runs contests and giveaways with entry rules from $24 with a free tier.
- KingSumo instead of ShortStack
- KingSumo is the simpler viral-loop widget ShortStack's own guidance points to, with a free tier and a lifetime price tag instead of a recurring plan.
Which one should you pick
Pick KingSumo for an occasional list-building giveaway where a subscription would sit idle between campaigns. Forty-nine dollars once removes the sponsored entry and adds branding and tracking, with no recurring bill ever, and the free tier already runs unlimited giveaways.
Pick ShortStack when the rules matter and the entries need to be defensible, since it hosts the landing page and the entry form rather than just a widget dropped onto one. Launch is $24 a month billed annually, and pricing is metered by page views rather than a flat rate, so a campaign that catches on costs more as it grows, unlike KingSumo's fixed one-time price.
Common questions
- Which one is a one-time purchase rather than a subscription?
- KingSumo. Its Lifetime Plan is $49 through AppSumo with no monthly bill at all. ShortStack is billed monthly, from $24 a month billed annually, and scales with page views as a campaign grows.
- Which is better for a contest with specific entry rules?
- ShortStack. It builds the entry form and the rules that decide what counts as a valid entry, plus a random draw inside the tool, which makes the result defensible. KingSumo is a simpler bonus-entry mechanic rather than a rules-driven contest builder.
- Does KingSumo's free plan carry any downside?
- Yes: a sponsored entry stays on the giveaway until the one-time $49 fee is paid, and branding, tracking and integrations are paid-only. ShortStack's free forever plan instead limits by page views rather than adding a sponsored entry.
- How does ShortStack's pricing change as a campaign grows?
- It is metered by views and entries, with overage charged per 10,000 views and per 1,000 entries once a plan's allowance is used. KingSumo's one-time price does not change with how large a giveaway gets.
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.