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Head-to-head · Sweepstakes Software

ViralSweep vs KingSumo

  • Updated Sep 2026
  • Both researched from official sources
  • 1 check side by side
Higher score ViralSweep #6 in Sweepstakes Software 6.9/10 From $41/mo (annual) · 7-day trial Visit ViralSweep
KingSumo #7 in Sweepstakes Software 6.8/10 Free plan · paid from $49 Free plan Visit KingSumo

ViralSweep leads on 0 checks, KingSumo on 1, and 0 are even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreViralSweep · 6.9/10
  • Free planonly KingSumo

ViralSweep scores higher on our rubric for sweepstakes software: 6.9 against 6.8 out of 10; our editors rank them #6 and #7.

KingSumo offers free plan; ViralSweep doesn't.

ViralSweep is the better fit for referral campaigns that need fraud controls. KingSumo is the better fit for simple, low-cost giveaways with referrals.

  • ViralSweep fits best

    Referral campaigns that need fraud controls

  • KingSumo fits best

    Simple, low-cost giveaways with referrals

Advertiser disclosure: iTechGuides is reader-supported. We may earn a commission when you click some links. How we rank.

Side by side

Feature ViralSweep 6.9/10 Visit ↗ KingSumo 6.8/10 Visit ↗
At a glance
Editor score 6.9 6.8
Ranking #6 in Sweepstakes Software #7 in Sweepstakes Software
Best for Referral campaigns that need fraud controls Simple, low-cost giveaways with referrals
Pricing model Paid Free plan + paid
Starting price $41/mo Not published
Free plan — ✓ (best)
Free trial — —
Deployment Cloud Cloud
Platforms Web Web
Support Email, Live chat, Phone, Docs Docs
Integrations 20 integrations 2 integrations
Built for Small business, Mid-market, Enterprise Solo, Small business, Mid-market
Specs
Entry limit Not published Not published
Winner selection Not published Random
Entry methods Not published Email; Facebook; social-account follows; link clicks; friend referrals
Campaign types Not published Giveaways; sweepstakes
Fraud controls true Not published
Native integrations Not published Not published
Our review
Pros
  • Supports milestone referrals, bonus entries and tiered prizes
  • Filters spam and bots with IP controls and verification codes
  • Hosts or embeds promotions and connects to marketing tools
  • Unlimited giveaways with referral-based bonus entries
  • Embeddable forms, reminders and multiple prizes or winners
  • $49 one-time plan adds branding, tracking and custom rules
Cons
  • No permanent free plan; the 7-day trial requires card details
  • Entry codes and premium integrations start at Business
  • API, A/B testing and audience segments require Premium
  • Campaign scope centers on giveaways and sweepstakes
  • Web-only deployment may not suit app-based workflows
  • Integration options are limited to Zapier and Integrately
Our verdict

ViralSweep is a web-based platform for brands, marketers and agencies running sweepstakes, contests, giveaways, waitlists and instant-win promotions. It combines entry collection, social actions, referral links and analytics, with options…

Read the review →

KingSumo is a cloud-based, web giveaway platform for businesses, creators and publishers that want to grow email lists and audience reach. Entrants can join through email or Facebook, follow social accounts, click links or refer friends…

Read the review →
  1. ViralSweepSweepstakes Software 6.9From $41/mo (annual) · 7-day trial
  2. KingSumoSweepstakes Software 6.8Free plan · paid from $49

Strengths and trade-offs

  • ViralSweep — where it wins

    • Supports milestone referrals, bonus entries and tiered prizes
    • Filters spam and bots with IP controls and verification codes
    • Hosts or embeds promotions and connects to marketing tools

    Where it doesn't

    • No permanent free plan; the 7-day trial requires card details
    • Entry codes and premium integrations start at Business
    • API, A/B testing and audience segments require Premium
  • KingSumo — where it wins

    • Unlimited giveaways with referral-based bonus entries
    • Embeddable forms, reminders and multiple prizes or winners
    • $49 one-time plan adds branding, tracking and custom rules

    Where it doesn't

    • Campaign scope centers on giveaways and sweepstakes
    • Web-only deployment may not suit app-based workflows
    • Integration options are limited to Zapier and Integrately
  • ViralSweep6.9/10 · From $41/mo (annual) · 7-day trial

    A flexible promotion platform with referral tools and fraud controls, starting at $41/month billed annually.

    Visit ViralSweepFull verdict →
  • KingSumo6.8/10 · Free plan · paid from $49

    A low-cost giveaway tool with referrals, tracking and unlimited campaigns.

    Visit KingSumoFull verdict →

More comparisons

Reviewed by iTechGuides Editors · Editorial team · Updated Sep 2026

Last updated · How we research and update