
Omni Calculator
calculator.net
Build vs. Buy Calculator
DeveloperToolStack
DevNestTools
DevTools Advanced
DevTools.fit
Free, no-signup calculators for the money side of building software and freelancing

ChurnBuster
ChurnKey
Browse AI
MarsX
Baremetrics Dunning & Retention
Safurai
Captain
Dunning emails, failed payments, churn prevention, event notifications, custom HTML receipts and more for Stripe subscriptions, with iPhone app and push notifications

Which is more popular?
Based on our record, Stunning seems to be more popular. It has been mentioned 3 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | devfinancetools.com | stunning.co |
| Pricing | ||
| Company | 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


DevFinanceTools is a collection of free, no-signup calculators for the money side of building software and freelancing. Everything runs in your browser — no account, no tracking beyond basic page-view analytics — and every tool shows its formulas and benchmarks so you can check the maths...
No description of Stunning yet.
What each product offers, as listed by its team.


Possible disadvantages
Walkthroughs and reviews on video.
No DevFinanceTools videos yet. You could help us improve this page by suggesting one.
Going In Style - "Instant Classic/Stunning Review" TV Spot
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using DevFinanceTools and Stunning. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


We have no reviews of DevFinanceTools yet. Be the first one to post
Every tool here can recover failed payments; the question is fit. The incumbents — Churnkey, Paddle Retain, Churn Buster, Stunning, Baremetrics — are proven, and each has a scenario where it's the right call, which...
Recommendations tracked on public social media and blogs since March 2021.


Tracking DevFinanceTools since Aug 2026.
When should a B2B SaaS reach for FlyCode (an app on Stripe Marketplace) vs Stripe Dunning (I'm actually unsure if it's their own offering or not)? [1]: https://stunning.co/. - Source: Hacker News / almost 2 years ago
I have used stunning.costunning . And if you are using stripe there is already existing a basic dunning followup. Source: over 5 years ago
Their blog has no sign-in button. Their main page (https://stunning.co/) does. - Source: Hacker News / over 5 years ago
When comparing DevFinanceTools and Stunning, you can also consider the following products.

Helping you make rational decisions, one calculation at a time.
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Stop Losing Money toFailed Payments in Stripe. Churn Buster saves you thousands of dollars every month by ensuring your customers update their payment information.
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Online calculator for quick calculations, along with a large collection of calculators on math, finance, fitness, and more, each with related in-depth information.
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The only platform that fixes every type of churn for you.
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Should you build an internal tool? Or just buy it?
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Automate any workflow on any website with no code. Used for monitoring, testing, automation, and data aggregation.Sign up now for free and receive 2x jobs per month – forever!
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