Back In Stock! Alert Engine vs SendWILL Popup

Back In Stock! Alert Engine and SendWILL Popup Email Marketing are evenly matched on rating (4.9★ vs 4.9★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow.

Pricing entry tiers: Back In Stock! Alert Engine at Free plan available, SendWILL Popup Email Marketing at Free plan available. Check each app's tier structure for the capacity limits you actually need before deciding — the headline number is the same shape, but the gating shape per tier (seats, usage volume, integrations) varies.

SendWILL Popup Email Marketing has the larger user base (7,754 reviews vs 23), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Back In Stock! Alert Engine's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.

Recommended evaluation path: install both apps' free tiers (where available) and run them in parallel on a small cohort for 7-14 days before committing. The data tables below show the per-feature breakdown — for most merchants the deciding factor will be a single integration or workflow detail that's hard to compare from listing pages alone.

This verdict is generated from the live marketplace data on this page — rating, review count, pricing tier, and category position all refresh from the canonical Shopify App Store listing every 24 hours. AppRanks does not accept payment to influence comparison outcomes; the methodology is documented on the About page and applies identically to every pair on the site.

Is Back In Stock! Alert Engine or SendWILL Popup Email Marketing cheaper?

Both Back In Stock! Alert Engine and SendWILL Popup Email Marketing offer paid plans only. Back In Stock! Alert Engine starts at Free plan available; SendWILL Popup Email Marketing starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.

Which has better reviews, Back In Stock! Alert Engine or SendWILL Popup Email Marketing?

Back In Stock! Alert Engine (4.9★, 23 reviews) and SendWILL Popup Email Marketing (4.9★, 7,754 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.

Should I choose Back In Stock! Alert Engine or SendWILL Popup Email Marketing?

AppRanks cannot separate these two on rating — both sit at 4.9★. SendWILL Popup Email Marketing does carry the larger published review base (7,754 vs 23). Read both apps' detail pages for the feature breakdown and recent listing changes.

Which is faster to set up, Back In Stock! Alert Engine or SendWILL Popup Email Marketing?

Both apps are one-click installs from the Shopify App Store. SendWILL Popup Email Marketing has the deeper published review base (7,754 vs 23), which often — though not always — accompanies better-tested setup docs. AppRanks doesn't measure setup time directly: read the recent reviews on each app's detail page for user-reported install experience.

Which works better for small vs large Shopify App Store merchants?

Back In Stock! Alert Engine typically suits early-stage and growth-mode teams based on its published review base (23 reviews). SendWILL Popup Email Marketing typically suits established teams with steady usage based on its published review base (7,754 reviews). A larger review base generally means the app has been exercised at scale — relevant if you are processing high volume or handling enterprise compliance requirements.