Seven tools, one podium, and a clear pick for every kind of business. Photo: Pexels
Word of mouth has always been the most trusted form of marketing. The difference today is that you no longer have to hope people talk about you. Referral marketing software turns word of mouth into a system: it tracks every share, rewards every successful referral, and keeps growth running while you sleep.
The problem is choice. Some tools are built for growing email lists, some for e-commerce stores, some for B2B companies and some for social media contests. Pick one built for someone else and you will fight the software instead of growing your business.
We compared seven of the best-known referral marketing tools on what actually matters, and ranked them for marketers, creators and small businesses who want real, measurable growth. Here is what we found.
- Best overall for list growth: UpViral
- Best for template variety: Viral Loops
- Best for social media contests: Gleam
- Best for larger teams: Referral Factory
- Best for online stores: ReferralCandy
- Best for B2B and services: Referral Rock
- Best for simple, low-budget giveaways: KingSumo
What Referral Marketing Software Does
At its core, referral software does three jobs. It gives each customer or subscriber a unique referral link or code, it tracks who brought in whom, and it delivers rewards automatically when someone hits a target.
Done well, this creates a loop: new people join, share with friends, those friends join and share again. Marketers measure the strength of that loop with the viral coefficient, which we explain in our UpViral review.
Every referral is a new connection in your growth network. Photo: Pexels
How We Ranked the Tools
We ranked each tool on seven criteria, weighted toward what matters most for marketers, creators and small businesses:
- Viral growth power: how well the tool turns participants into promoters.
- Campaign variety: referral programs, giveaways, contests and waitlists.
- Ease of setup: templates, builders and AI that save time.
- Reward flexibility: milestones, leaderboards, two-sided rewards and more.
- Integrations: connections to email tools, CRMs and stores.
- Fraud protection: safeguards against fake entries and abuse.
- Low-risk testing: free plans, trials and guarantees.
The Top 7 at a Glance
| Rank | Tool | Best For | Way to Try It |
|---|---|---|---|
| 1 | UpViral | Email list growth, referral programs and waitlists | $1 for 14 days |
| 2 | Viral Loops | Ready-made referral and launch templates | 14-day free trial |
| 3 | Gleam | Social media contests and engagement | Free plan |
| 4 | Referral Factory | Mid-market and enterprise programs | 15-day trial |
| 5 | ReferralCandy | E-commerce stores | 7-day free trial |
| 6 | Referral Rock | B2B, SaaS and service businesses | 14-day free trial |
| 7 | KingSumo | Simple, budget-friendly giveaways | One-time lifetime deal |
The Top 7 Referral Marketing Tools Ranked
UpViral has spent ten years doing one thing: turning subscribers into promoters. Every campaign is built around the referral loop, and according to UpViral it has generated over 99 million leads for more than 52,000 businesses. Its Referral AI can build a complete campaign, including rewards, pages, copy, emails and terms, in about 10 minutes.
Strengths- Referral campaigns, viral giveaways, contests and launch waitlists in one place
- Milestone, leaderboard, double-sided and single-sided rewards
- Unlimited campaigns, anti-fraud protection and 30+ integrations
- Low-risk start with a $1 trial and a 30-day money-back guarantee
- No free plan
- Needs some starting traffic to multiply
Best first step: follow our 14-day UpViral trial plan, or see the 10th Anniversary deal if you are ready for a full year.
Viral Loops is built around ready-made campaign templates, which makes it quick to launch a proven format. Its templates include the Milestone Referral, Newsletter Referral, Startup Prelaunch, Tempting Giveaway, Leaderboard Giveaway and a Shopify referral program.
Strengths- Wide choice of referral, waitlist and giveaway templates
- Integrations with tools such as Klaviyo, Mailchimp, ConvertKit, HubSpot and Zapier
- Strong fit for newsletters and startup launches
- The free trial is limited to a small number of participants
- After the trial, you cannot export collected emails until you subscribe
Gleam is a multi-app engagement platform with separate tools for Competitions, Rewards, Captures and Galleries. Brands such as Logitech, Razer and UFC use it, and it shines when you want people to complete actions across many social platforms.
Strengths- Over 20 entry types, even on the free plan
- Automatic fraud detection on all plans
- Free plan for basic competitions
- The viral share action only unlocks on higher tiers
- Referrals are one action among many, not the core of the campaign
Deep dive: read our full UpViral vs Gleam comparison.
Referral Factory describes itself as referral marketing software for mid-market companies, enterprise teams and multi-location businesses. It offers an AI-powered program builder and more than 200 reward types, from gift cards to cash payouts.
Strengths- Integrations with HubSpot, Salesforce, Stripe, Zapier and more
- Fraud alerts for suspicious sign-ups
- Security certifications suited to larger organizations
- A credit card is required to start the trial
- Built more for customer referral programs than viral list building
ReferralCandy is a referral and affiliate app made for online merchants. It works with Shopify, WooCommerce and BigCommerce, and lets you reward customers with cash or store credit when their friends buy.
Strengths- Referral and affiliate programs from one platform
- Custom coupon codes and flexible payouts
- Month-to-month plans with no contract
- Plans include a success fee on referred sales on top of the monthly fee
- Designed for stores, not list building or giveaways
Referral Rock runs customer, partner and ambassador referral programs for businesses that win clients through word of mouth, from B2B SaaS to professional and home services. Every plan includes a program advisor to help design the program.
Strengths- Hosted member portal and referral links, codes and QR sharing
- Recruiter portal so frontline staff can sign up customers
- Hands-on help from a dedicated program advisor
- Not built for viral giveaways or contests
- More setup than a simple list-building tool
KingSumo is a straightforward giveaway tool for growing an email list. Entrants earn extra entries by sharing with friends, and it is sold as a one-time lifetime deal, which makes it attractive for tight budgets.
Strengths- Unlimited giveaways
- Automatic reminder emails to boost sharing
- One-time payment instead of a monthly plan
- Giveaways only, with no full referral programs or waitlists
- Far fewer advanced features than the tools above
The right tool turns every customer into a megaphone for your brand. Photo: Pexels
Best Tool by Business Type
| Your Business | Top Pick | Runner-Up |
|---|---|---|
| Affiliate marketer or blogger | UpViral | KingSumo |
| Coach or course creator | UpViral | Viral Loops |
| Newsletter or podcast | UpViral | Viral Loops |
| Startup preparing a launch | UpViral | Viral Loops |
| Brand running social contests | Gleam | UpViral |
| Online store | ReferralCandy | UpViral |
| B2B or service business | Referral Rock | Referral Factory |
| Large or multi-location company | Referral Factory | Referral Rock |
Why UpViral appears so often: it combines referral programs, viral giveaways, contests and waitlists in one platform, with Referral AI to build them quickly. That flexibility makes it a strong pick for most businesses that grow through email.
How to Choose in 5 Steps
Decide whether you want email subscribers, sales from existing customers, social engagement or launch buzz.
Use the table above to shortlist two tools built for businesses like yours.
Make sure your shortlist connects with your email tool, CRM or store before you commit.
Check whether you need milestones, leaderboards, two-sided rewards, cash payouts or store credit.
Use a trial or free plan to launch one real campaign, then judge the tool on results rather than features.
Our Final Verdict
Every tool on this list is good at something. ReferralCandy is a natural fit for online stores, Referral Rock and Referral Factory serve B2B and larger teams well, Gleam leads for social contests, and KingSumo is a budget-friendly way to run simple giveaways.
But for most marketers, creators and small businesses that grow through email, UpViral takes the top spot. It is purpose-built for referral growth, covers every major campaign type, removes most of the setup work with Referral AI, and lets you test it for 14 days for just $1. That combination of focus, flexibility and low risk is why it ranks number one.
For list builders, the gold medal goes to UpViral. Photo: Pexels
Frequently Asked Questions
For most marketers, creators and small businesses that grow through email, UpViral is the best overall choice. Online stores may prefer ReferralCandy, B2B companies may prefer Referral Rock, and brands focused on social contests may prefer Gleam.
It gives each customer or subscriber a unique referral link or code, tracks who referred whom, and delivers rewards automatically when people reach referral targets.
Gleam offers a free plan for basic competitions. Most dedicated referral tools use trials instead, such as UpViral's 14 days for $1 and free trials from Viral Loops, ReferralCandy and Referral Rock.
ReferralCandy is built specifically for online stores and works with Shopify, WooCommerce and BigCommerce. UpViral and Viral Loops are also good options for stores that want to grow an email list.
UpViral is the strongest choice for email list growth, because every campaign is designed to turn new subscribers into promoters who bring in more subscribers.
Start with your main growth goal and business type, check integrations and reward options, then test one real campaign during a trial before you commit.
If growing your list through referrals is your goal, UpViral is the tool to try first. Choose your starting point below.
Try UpViral for 14 Days See the 10th Anniversary Special Explore Everything UpViral Offers Get the Viral Referral Method Book Grab the Growth Hacking BlueprintDisclosure: Some links in this article are affiliate links. If you purchase through them, we may earn a commission at no extra cost to you. Tool features, trials and plans are based on information published by each company at the time of writing and may change.
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