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Add SaaS A/B test sample size calculator#4

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Turner-Levey:add-trial-to-paid-sample-size-calculator-20260517
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Add SaaS A/B test sample size calculator#4
Turner-Levey wants to merge 2 commits into
DavisTrey:mainfrom
Turner-Levey:add-trial-to-paid-sample-size-calculator-20260517

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@Turner-Levey

@Turner-Levey Turner-Levey commented May 18, 2026

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Adds one free, browser-only sample-size planning tool to the Tools and Companies section.

Disclosure: I maintain the linked tool and source repository as Turner Levey. The tool is free, open source, no-signup, and runs locally in the browser with no analytics or tracking. It focuses on SaaS trial-to-paid A/B test planning, including sample size, readout timing, and local Markdown/CSV notes.

Summary by CodeRabbit

  • Documentation
    • Updated the Tools and Companies section in the README to include a new SaaS A/B Test Sample Size Calculator, with links to its Vercel deployment and source repository.

Review Change Stack

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coderabbitai Bot commented May 18, 2026

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ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 6687db73-a8d2-4da6-8121-782c89f1d5dd

📥 Commits

Reviewing files that changed from the base of the PR and between 7be99e3 and b92dc54.

📒 Files selected for processing (1)
  • README.md
📝 Walkthrough

Walkthrough

README's "Tools and Companies" section gains a new list entry for a SaaS A/B Test Sample Size Calculator with a Vercel deployment link and source repository reference.

Changes

Tools and Companies Documentation Update

Layer / File(s) Summary
Tools and Companies list entry
README.md
A new bullet is added to the Tools and Companies section referencing a SaaS A/B Test Sample Size Calculator with links to its Vercel deployment and source code repository.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A calculator springs forth, tested and true,
Links gathered with care, from Vercel's bright blue,
The toolbox grows wider, the resources shine,
Another fine entry, a numerical sign! ✨

🚥 Pre-merge checks | ✅ 5
✅ Passed checks (5 passed)
Check name Status Explanation
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.
Title check ✅ Passed The title accurately and directly reflects the main change: adding a SaaS A/B test sample size calculator to the README's Tools and Companies section.
Docstring Coverage ✅ Passed No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.

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@soffi-ai

soffi-ai Bot commented May 18, 2026

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Soffi AI Summary

This PR adds a single entry to the Tools and Companies section of the README, listing a SaaS A/B Test Sample Size Calculator. The motivation is to contribute a free, open-source, browser-only planning tool tailored specifically for SaaS trial-to-paid conversion A/B testing — covering sample size estimation, readout timing, and local Markdown/CSV note-taking, with no sign-up, analytics, or tracking required. The second commit was a minor formatting fix to align the new entry with the existing list style.

Commits

Commit Summary
7be99e3 Adds a new bullet-point entry in the README's Tools and Companies section linking to a SaaS A/B Test Sample Size Calculator hosted on Vercel, aimed at helping practitioners plan trial-to-paid conversion experiments.
b92dc54 Minor formatting adjustment to ensure the new tools list entry matches the style and format of the existing entries in the README.

Create a Soffi project for this repository to deploy PR previews.


Updated: 2026-05-18 02:15 UTC

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🧹 Nitpick comments (1)
README.md (1)

116-116: ⚡ Quick win

Consider matching the format of existing entries.

All other entries in the "Tools and Companies" section follow a simple format with just the name and URL. This entry includes an extended description and secondary source code link, creating visual inconsistency in the list.

Consider simplifying to match the existing pattern, or if the additional detail is valuable, consider whether other entries should also include descriptions for consistency.

♻️ Possible simplified format
-* [SaaS A/B Test Sample Size Calculator](https://trial-to-paid-conversion-sample-size-calculator.vercel.app/) - Free browser-only planner for SaaS trial-to-paid A/B test sample size, readout timing, and local Markdown/CSV experiment notes. ([Source Code](https://github.com/Turner-Levey/trial-to-paid-conversion-sample-size-calculator))
+* [SaaS A/B Test Sample Size Calculator](https://trial-to-paid-conversion-sample-size-calculator.vercel.app/)

Alternatively, if you prefer to keep the source link:

-* [SaaS A/B Test Sample Size Calculator](https://trial-to-paid-conversion-sample-size-calculator.vercel.app/) - Free browser-only planner for SaaS trial-to-paid A/B test sample size, readout timing, and local Markdown/CSV experiment notes. ([Source Code](https://github.com/Turner-Levey/trial-to-paid-conversion-sample-size-calculator))
+* [SaaS A/B Test Sample Size Calculator](https://trial-to-paid-conversion-sample-size-calculator.vercel.app/) ([Source Code](https://github.com/Turner-Levey/trial-to-paid-conversion-sample-size-calculator))
🤖 Prompt for AI Agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@README.md` at line 116, The README entry for "SaaS A/B Test Sample Size
Calculator" is more verbose than other "Tools and Companies" items; change the
list item to match the simple "name - URL" pattern by replacing the current line
with either "SaaS A/B Test Sample Size Calculator -
https://trial-to-paid-conversion-sample-size-calculator.vercel.app/" or, if you
want to keep the source link, use the compact two-link form "SaaS A/B Test
Sample Size Calculator -
https://trial-to-paid-conversion-sample-size-calculator.vercel.app/ (Source:
https://github.com/Turner-Levey/trial-to-paid-conversion-sample-size-calculator)".
Ensure the displayed text exactly matches the project name "SaaS A/B Test Sample
Size Calculator" so it stays consistent with other entries.
🤖 Prompt for all review comments with AI agents
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Nitpick comments:
In `@README.md`:
- Line 116: The README entry for "SaaS A/B Test Sample Size Calculator" is more
verbose than other "Tools and Companies" items; change the list item to match
the simple "name - URL" pattern by replacing the current line with either "SaaS
A/B Test Sample Size Calculator -
https://trial-to-paid-conversion-sample-size-calculator.vercel.app/" or, if you
want to keep the source link, use the compact two-link form "SaaS A/B Test
Sample Size Calculator -
https://trial-to-paid-conversion-sample-size-calculator.vercel.app/ (Source:
https://github.com/Turner-Levey/trial-to-paid-conversion-sample-size-calculator)".
Ensure the displayed text exactly matches the project name "SaaS A/B Test Sample
Size Calculator" so it stays consistent with other entries.

ℹ️ Review info
⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: b40645f7-b1df-4e75-ad56-9ee48d45387f

📥 Commits

Reviewing files that changed from the base of the PR and between fd3b7cf and 7be99e3.

📒 Files selected for processing (1)
  • README.md

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