How Warmup Inbox Tripled Affiliate Revenue in 12 Months After Ditching In-House Tooling
Replacing per-product internal builds with Reditus freed the engineers, unified the affiliate experience, and added 30+ new affiliates a month.
3× (200%)
Affiliate revenue (12 months)
$20K+
MRR via Reditus
30+
New affiliates / month
Warmup Inbox keeps sales and marketing emails landing in the inbox, not spam. It's part of iTrinity, a B2B SaaS group with eight products and 90+ people. Across that portfolio, each product ran its own internally-built affiliate setup — and that was the problem.
The challenge: homegrown tooling that taxed the team
- Constant maintenance — engineers pulled into debugging instead of shipping.
- A fragmented affiliate experience — separate logins per product.
- Limited reach — no marketplace, so growth was capped by their own network.
The switch: phased, product by product
Warmup Inbox migrated in controlled phases — export, soft launch, full rollout — with in-app referral lined up next. Moving off an internal build is trickier than leaving an off-the-shelf tool, so a shared Slack channel and custom integrations kept each phase on schedule.
The solution: one platform instead of many homegrown ones
- Zero affiliate maintenance — engineering time went back to product.
- A unified affiliate portal across products.
- Marketplace reach — 30+ new affiliates a month.
- A platform built for B2B SaaS — recurring/MRR tracking, not generic plumbing.
The results
- Tripled affiliate revenue (200% increase) in 12 months.
- $20K+ MRR now running via Reditus.
- 30+ new affiliates per month from the marketplace.
- Zero engineering time on affiliate maintenance.
How Joiin Grew Affiliate Referrals 424% Year-Over-Year — From a Standing Start
No program, no partner team, no infrastructure → €130K+ in affiliate-driven ARR in 18 months, run by one person.
Paul ShipwayHow Insightful Tripled Affiliate Revenue After Switching From Rewardful
From ~$8K to $20K+ per month — and 1,000+ affiliates — in under 18 months, without adding headcount. How Insightful tripled affiliate revenue after switching from Rewardful.
Ivan PetrovicHow Snitcher Built a Custom In-App Referral Program in Days — and Enrolled 2,600+ Advocates
Using Reditus's referral API, Snitcher shipped a fully custom in-app referral loop fast — and 2,600+ users have already signed up as advocates.
Jerre Baumeister