WarmInbox is the #188 ranked email marketing app on Shopify, with a 4.7 average rating from 7 reviews, with a free plan available, as of July 9, 2026.
WarmInbox is a Shopify App Store app by Offpista, launched January 2025. With a rating of 4.7★ from 7 reviews, it currently ranks #188 in the Email marketing category.
AppRanks data: WarmInbox ranks #188 in Email marketing on Shopify App Store, placing it in the top 57% of that category.
AppRanks verdict
Generated from live marketplace data — refreshed daily
WarmInbox is a highly rated Shopify app with a limited review volume. It is listed in the Email marketing category on Shopify App Store, which AppRanks treats as the canonical taxonomy node for ranking and competitor comparison. 7 reviews put it in the early-traction tier — useful for early-stage stores willing to be on the leading edge. Early-traction review counts are sensitive to single launch periods or feature events, so a 30-day re-check before bigger commitments often resolves whether the trend is sustained. The free tier lets you trial the entry feature set without committing a payment method. AppRanks tracks rating, review count, pricing tier, and category position daily — the figures on this page reflect the most recent scrape from the canonical Shopify App Store listing.
Pros
- +High average rating (4.7★) signals consistent merchant satisfaction
- +Free tier available — no card required to evaluate
- +Published by Offpista — established developer track record
Cons
- −Limited review base (7) — ratings can shift significantly with new feedback
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About WarmInbox
How WarmInbox works
WarmInbox helps Shopify merchants keep emails out of spam by simulating real interactions like opens and replies. It improves deliverability, builds sender reputation, and is simple to set up with a user‑friendly dashboard. It's perfect for newsletters, promotions, abandoned cart reminders, and customer follow‑ups. Set it up once and let it run on autopilot.
Screenshots






Key features
- Uses AI to warm your email account, improving deliverability and avoiding spam
- Simulates human behavior by automatically interacting with your emails
- Gets responses from real accounts to enhance your sender reputation
Standardized capabilities
Normalized capabilities detected for this app, comparable across the marketplace.
- Abandoned Cart RecoveryAutomatically follow up with customers who leave items in their cart.Common
- Email AutomationAutomate your email marketing campaigns for better engagement and efficiency.Common
- Follow-Up EmailsAutomate follow-up emails to engage customers and drive repeat business.Differentiator
- Gmail IntegrationConnect your site with Gmail for seamless email communication.
- Microsoft 365 IntegrationConnect Microsoft 365 for improved productivity and collaboration tools.
- Email NewslettersCreate and send newsletters to keep customers informed and engaged.Differentiator
- Outlook IntegrationConnect your site with Microsoft Outlook for email and calendar management.
- Price Drop AlertsNotify users when prices drop on items they are interested in.Common
- Product RecommendationsProvide personalized product recommendations to boost sales.Common
- Promotional CampaignsRun various promotional campaigns to boost sales and attract customers.Common
- Rewards RedemptionFacilitate the redemption of rewards for customers to enhance loyalty.Common
- Upsell and Cross-Sell EmailsSend targeted emails to encourage customers to purchase additional products.Differentiator
- Welcome EmailsSend personalized welcome emails to new customers after sign-up.Differentiator
- Win-Back EmailsSend targeted emails to re-engage customers who haven't purchased recently.Differentiator
Pricing plans
WarmInbox9/month
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Category rankings
As of Jul 9, 2026- Email marketing#188of 331Top 57%
See 90-day rank history for each category
Track daily rank changes, category shifts, and position volatility.
Keyword rankings
WarmInbox ranks for 2 keywords across Shopify App Store. Here are the top 2:
Competitors & alternatives
WarmInboxdoesn't have curated competitor matchups yet. Other tracked email marketing apps on Shopify:
Frequently asked questions
What is WarmInbox?
WarmInbox is an app for Shopify. It currently holds a 4.7-star rating from 7 merchant reviews, and it has been listed on the marketplace since 2025. It is listed under the Email marketing category on AppRanks, where you can see its current category position, review-velocity trend, and how it compares against the top alternatives in the same space. Developed by Offpista.
Is WarmInbox free?
WarmInbox does not offer a permanent free plan on Shopify. Pricing starts at 9, and the listed tiers are WarmInbox. Trial availability and exact billing terms are mirrored from the live Shopify listing and may change between refresh cycles, so always confirm the headline price on the source marketplace before installing.
Who uses WarmInbox?
WarmInbox is actively installed across Shopify stores tracked by AppRanks. Its review base is still building, which usually maps to early-stage merchants and stores piloting a new workflow. It is part of the Email marketing category on Shopify.
Where does WarmInbox rank on Shopify?
WarmInbox currently sits at position #188 in the Email marketing category on Shopify. That places it in the top 57% of 331 apps tracked in the same category. Category positions are read from the live marketplace ranking and refresh on each scrape, so the number you see here reflects the most recent crawl rather than a long-running average.
What does WarmInbox integrate with?
WarmInbox lists 6 integrations on its Shopify marketplace page. The most prominent are Custom IMAP/SMTP, Gmail, Microsoft 365, Outlook, Yahoo Mail, Zoho Mail. Integration data is mirrored from the live Shopify listing on each refresh, so the set above tracks whatever the developer has currently published — it does not reflect deeper compatibility AppRanks has not been able to verify from public data.