What to look for in dunning software
Not all dunning tools are equal, and the right choice depends heavily on your billing platform, stage, and budget. Before comparing tools, decide what you actually need:
Quick comparison table
| Feature | MRRescue | Churnkey | Churn Buster | Stunning |
|---|---|---|---|---|
| Entry price | $29/mo | $250/mo | $249/mo | ~$60/mo |
| Pricing model | Flat tiers | Flat tiers | Flat tiers | MRR-based |
| Free trial | 14 days, no card | Demo only | No | 15 days |
| Self-serve setup | ✓ | ✗ | ✗ | ✓ |
| Setup time | ~5 minutes | ~35 minutes | Guided onboarding | Minutes |
| Platform | Stripe | Multi-platform | Stripe + DTC | Stripe + Subbly |
| Cancel flow intervention | ✓ | ✓ | ✓ | ✓ |
| Renewal reminders | ✓ | ✗ | ✗ | ✗ |
| Expiring card alerts | ✓ | ✗ | ✗ | ✗ |
| Win-back campaigns | ✓ | ✗ | ✗ | ✗ |
| Fraud alerts | Pro+ | ✗ | ✗ | ✗ |
| AI churn insights | Growth | Intelligence tier | ✗ | ✗ |
| SMS recovery | ✗ | ✗ | ✗ | ✓ |
| A/B testing for flows | ✗ | ✓ | ✗ | ✗ |
MRRescueOur pick
Best for indie & bootstrapped Stripe SaaS
$29/mo
entry price
Platform
Stripe
Self-serve
Yes
Free trial
14 days, no card
Strengths
- ✓Lowest entry price ($29/mo, flat tiers)
- ✓Full lifecycle: dunning, cancel flows, renewals, fraud, AI insights
- ✓Self-serve — live in 5 minutes, no demo call
- ✓Stripe-native OAuth setup, read-only access
- ✓AI churn insights and fraud alerts at higher tiers
Limitations
- —Stripe-only (no Chargebee, Paddle, or Shopify)
- —No A/B testing for cancel flows
- —Newer platform — less track record than decade-old competitors
Best fit
The strongest fit for bootstrapped founders, indie SaaS, and early-stage companies that run 100% on Stripe and want to be live in minutes without a sales process.
Churnkey
Best for mid-market with A/B testing needs
$250/mo
entry price
Platform
Stripe, Chargebee, Braintree, Paddle
Self-serve
No
Free trial
Demo required
Strengths
- ✓A/B testing for cancel flows and payment recovery sequences
- ✓Supports multiple billing platforms beyond Stripe
- ✓Dedicated customer success manager at higher tiers
- ✓Strong analytics and recovery reporting
Limitations
- —Starts at $250/mo — 8× more expensive than MRRescue
- —Requires a demo call to start
- —Overkill for early-stage or Stripe-only SaaS
Best fit
Fits mid-market SaaS companies that need A/B testing for cancel flows, use billing platforms beyond Stripe, or want a dedicated CSM. Not ideal for small or bootstrapped teams.
Churn Buster
Best for DTC & Shopify subscription businesses
From $249/mo
entry price
Platform
Stripe, Shopify, Recharge, API
Self-serve
No
Free trial
Book a call
Strengths
- ✓Expert-guided onboarding with strategy sessions
- ✓Broad platform support: Stripe, Shopify, Recharge, and custom APIs
- ✓Strong track record (founded 2015)
- ✓White-glove managed approach for larger teams
Limitations
- —Starts at $249/mo, no self-serve option
- —Requires guided onboarding — not suitable for fast setup
- —Overkill for pure SaaS on Stripe
Best fit
Best for DTC subscription businesses on Shopify or Recharge, or larger SaaS companies wanting expert-guided onboarding and a managed retention strategy.
Stunning
Best for Stripe SaaS needing SMS recovery
~$60/mo (MRR-based)
entry price
Platform
Stripe, Subbly
Self-serve
Yes
Free trial
15 days
Strengths
- ✓SMS recovery notifications alongside email
- ✓Founded 2012 — $12B+ recovered, established track record
- ✓Stripe-native, self-serve setup
- ✓Supports Subbly in addition to Stripe
Limitations
- —MRR-based pricing scales up to $1,249/mo — expensive at scale
- —No AI churn insights or fraud alerts
- —No cancel flow intervention or win-back campaigns
Best fit
A strong alternative for Stripe SaaS where SMS recovery notifications matter, or for businesses using Subbly. MRR-based pricing becomes expensive above $50K MRR.
Stripe's built-in dunning — when is it enough?
Stripe includes Smart Retries and one configurable payment failure email. This is free and runs automatically — and for the very early stages (under $2,000–3,000 MRR), it's often sufficient.
Stripe's limitations: a single email (no sequence), no custom branding, no backup payment capture, no win-back campaigns, no cancel flow interception, and no analytics beyond basic dashboard data.
Once you're above $3,000 MRR and growing, the recoverable revenue from a dedicated tool almost always exceeds its monthly cost within 30–60 days. At that stage, Stripe's native dunning is leaving money on the table.
How to choose: a framework
If: You're on Stripe, indie/bootstrapped, and want to be live today
→ MRRescue ($29/mo) — self-serve, full lifecycle, 5-minute setup
If: You're on Stripe and SMS recovery matters for your customers
→ Stunning (~$60/mo, MRR-based) — adds SMS alongside email dunning
If: You need A/B testing for cancel flows or use Chargebee/Paddle
→ Churnkey ($250/mo+) — built for multi-platform, enterprise-grade testing
If: You run a DTC subscription on Shopify or Recharge
→ Churn Buster ($249/mo+) — expert-guided, built for DTC platforms
If: You're under $3,000 MRR and want to start for free
→ Stripe's native dunning — upgrade to a dedicated tool as you grow
Try MRRescue free for 14 days
Connect Stripe in 5 minutes. Full dunning sequence, cancel flows, fraud alerts, and AI insights — from $29/mo.
Start free — no credit card →Related reading
What is dunning?
The complete guide to dunning for SaaS founders
How to Reduce Involuntary Churn
8 tactics ranked by impact and effort
MRRescue vs Churnkey
Detailed side-by-side feature and pricing comparison
MRRescue vs Churn Buster
Self-serve vs expert-guided dunning compared
MRRescue vs Stunning
Flat pricing vs MRR-based, AI features vs SMS
SaaS Cancel Flow Guide
How to design a cancel flow that saves 15–25% of subscribers
Stripe Decline Codes
Recovery playbook for every Stripe decline code
Frequently asked questions
What is dunning software?
Dunning software automates the process of recovering failed subscription payments. It handles smart payment retries, sends a timed sequence of recovery emails, captures backup payment methods, and sends win-back campaigns for subscriptions that do lapse. Most dedicated tools layer on top of Stripe or other billing processors.
Do I need dunning software or is Stripe enough?
Stripe includes basic dunning: Smart Retries and one configurable email. For very early-stage companies this is often sufficient. Once you're past $3,000–5,000 MRR, dedicated dunning software typically recovers enough additional revenue to justify its cost within the first 30–60 days.
What's the best dunning software for bootstrapped SaaS?
For bootstrapped and indie SaaS founders on Stripe, MRRescue ($29/mo) and Stunning (MRR-based, starts ~$60/mo) are the most accessible options. Both are self-serve, Stripe-native, and set up in minutes. MRRescue adds AI churn insights and fraud alerts at higher tiers; Stunning adds SMS recovery.
What's the difference between MRRescue and Churnkey?
MRRescue starts at $29/mo and is purpose-built for Stripe SaaS founders. Churnkey starts at $250/mo and targets larger SaaS companies needing A/B testing for cancel flows and support for multiple billing platforms. MRRescue is self-serve and live in 5 minutes; Churnkey requires a demo call.
How much MRR can dunning software recover?
Most dunning tools recover 40–60% of failed payments when configured with a full email sequence, smart retries, and backup card capture. The exact recovery rate depends on your customer base, ACV, and the quality of the sequence. At $10,000 MRR, recovering an extra 1.5% monthly is $150/mo — $1,800/year.
The best dunning software for Stripe SaaS
MRRescue starts at $29/mo. Self-serve. Full lifecycle coverage. Connect Stripe in 5 minutes and see how much you've been losing — free for 14 days.
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