UpViral

UpViral runs the kind of campaign where entrants earn points for sharing a link and the leaderboard decides who wins, which is the fastest way to turn a small list into a larger one. Landing pages, emails and fraud checks all come with it. The trial costs a dollar rather than nothing, and the plans are priced for a business running launches rather than for a one-off giveaway.

Plans are $79, $119 and $319 a month billed yearly, against $119, $199 and $499 monthly, saving 20 percent for the year. Each card offers a 14-day trial for $1, which is a paid trial rather than a free one. The company states a full refund if a campaign does not grow leads or sales.

Businesses running launches and prize campaigns where a list is the goal and there is a budget for the software. A creator running one giveaway a year will find KingSumo or Gleam cheaper for the same evening's work.