r/ShopifyApps • u/ShoyaBuilds • 8h ago
App Promo Email Audience Cost Guard — a free browser-only tool for reviewing Mailchimp contact CSVs before archiving contacts
What's the app?
I built Email Audience Cost Guard, a free beta utility for Shopify merchants who use Mailchimp.
It reviews Mailchimp contact CSV exports and highlights contacts that may need manual review before the merchant makes any changes.
This is currently a standalone beta utility, not a Shopify App Store app.
Where can I find it?
Free beta:
https://audience-cost-guard-beta.netlify.app/
Feedback form:
What problem are you solving?
While researching Shopify email marketing apps, I found repeated complaints about:
- unsubscribed or non-subscribed contacts still contributing to audience size
- the same email appearing under different contact statuses
- duplicate or overlapping contact exports
- merchants being unsure which contacts may deserve an archive review
Reviewing several CSV exports manually can be confusing, especially when the same email appears in more than one file.
How does the app work?
The merchant exports up to four contact CSV files from Mailchimp and adds them to the tool.
The tool checks for:
- status conflicts
- cross-file overlaps
- same-file duplicates
- possibly invalid email formats
- unsubscribed or non-subscribed contacts that may deserve an archive review
It then creates a review list that can be downloaded as a CSV.
All processing happens locally in the browser.
- No account is required
- CSV data is not uploaded to a server
- The tool does not delete, archive, or modify contacts
- Demo data is included, so it can be tested without customer information
Who's your target merchant?
Small Shopify merchants who use Mailchimp and want a clearer way to review their contact exports before making manual changes.
How is it different / better than other existing solutions?
This beta is intentionally small and focused.
It does not try to replace Mailchimp or automatically manage an audience. It provides a browser-only review step that:
- works without connecting a Mailchimp account
- does not store customer email addresses
- does not automatically change any contacts
- clearly separates archive consideration from manual status review
The final decision always remains with the merchant.
How much does it cost?
The beta is completely free.
There is currently no paid plan and I am not selling anything in this post.
What are you looking for?
I am looking for 5 Shopify merchants who currently use Mailchimp and can test either the included demo data or their own exported CSV files.
I would especially like feedback on:
Did the tool work with your Mailchimp export?
Were the results easy to understand?
Was anything confusing or incorrect?
What would make the tool useful enough to use regularly?
Please do not share customer email addresses or other personal information in the comments or feedback form.
I built this tool myself and am sharing it for beta feedback.
Email Audience Cost Guard is not affiliated with or endorsed by Intuit Mailchimp. Merchants should review their business, legal, and record-retention requirements before changing any contacts.