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KingSumo
What it is
KingSumo is a giveaway and sweepstakes tool for growing an email list. Entrants join with an email address and can earn extra entries through Facebook activity, social-account follows, link clicks, or friend referrals. Organizers can share campaigns or embed them on a website, offer multiple prizes and winners, and view analytics and reporting. KingSumo sends entry confirmations and reminder emails, while the organizer selects winners; the service neither chooses winners automatically nor emails them. Invisible reCAPTCHA checks entries in the background on every plan. The free plan supports unlimited giveaways, bonus entries, GDPR compliance, embedding, reminder emails, multiple prizes and winners, and basic integrations. A Lifetime Plan costs $49, paid once as a single payment and adds custom branding, Meta Pixel and conversion tracking, custom rules and terms, additional entry fields, and sponsored-entry removal. SendFox works on every plan; Mailchimp, ConvertKit, Klaviyo, and Zapier require the Lifetime Plan. KingSumo is available as an extension and web service.
For and against
For
- Free plan supports unlimited giveaways
- Embeddable campaigns with multiple prizes
- Bonus entries support social actions and referrals
- Invisible reCAPTCHA on every plan
- Analytics and reporting included
Against
- Organizer must select winners
- Winner emails are not sent
- WordPress plugin is retired
- Several integrations require Lifetime Plan
The verdict
KingSumo combines giveaway entry tools, sharing, reminders, and list-building features. Check the plan limits and winner-management responsibilities before choosing it.
Who it suits
KingSumo suits organizers building email lists with giveaways or sweepstakes. It fits users who need embedded campaigns, bonus-entry actions, and email reminders.
Plans and prices
Free
Unlimited giveaways · bonus entries · GDPR compliance · embed on any site
Read 9 Oct 2026 · kingsumo.com
Lifetime Plan
Unlimited giveaways · bonus entries · GDPR compliance · embed on any site
Read 9 Oct 2026 · kingsumo.com
On the record
- Email integrations
- SendFox works on every plan; Mailchimp, ConvertKit, Klaviyo, and Zapier require the Lifetime Plan.help.kingsumo.com · read 9 Oct 2026
- Email reminders
- KingSumo sends entry confirmations and reminder emails to entrants, but does not email giveaway winners.help.kingsumo.com · read 9 Oct 2026
- GDPR
- The privacy policy includes GDPR terms for EEA residents and links to a Data Processing Agreement.kingsumo.com · read 9 Oct 2026
- Giveaway entries
- Entrants enter with their email address and can earn extra entries through bonus actions.help.kingsumo.com · read 9 Oct 2026
- Privacy
- The privacy policy says KingSumo will not share, sell, rent, or trade personally identifiable information with other parties, while allowing sharing with service providers.kingsumo.com · read 9 Oct 2026
- Purpose
- KingSumo is a giveaway tool for growing an email list through viral giveaways.kingsumo.com · read 9 Oct 2026
- Referral campaigns
- Referral campaigns are available only to selected accounts, and users can contact support to request access.help.kingsumo.com · read 9 Oct 2026
- Security
- The privacy policy says the company uses commercially reasonable security measures but cannot guarantee the security of information transmitted to or from the website.kingsumo.com · read 9 Oct 2026
- Sharing and embedding
- Giveaways can be shared or embedded on a website.help.kingsumo.com · read 9 Oct 2026
- Spam protection
- Invisible reCAPTCHA checks entries in the background and is available on every plan.help.kingsumo.com · read 9 Oct 2026
- Support
- KingSumo directs users who need help to email [email protected].help.kingsumo.com · read 9 Oct 2026
- Winner selection
- The organizer draws winners; KingSumo does not pick giveaway winners automatically.help.kingsumo.com · read 9 Oct 2026
- WordPress plugin
- The WordPress plugin is retired and no longer receives updates; the maker recommends the web app for new giveaways.help.kingsumo.com · read 9 Oct 2026
- Zapier connections
- KingSumo says Zapier connects it to thousands of other apps on the Lifetime Plan.help.kingsumo.com · read 9 Oct 2026
