Side-by-side comparison · 24 data points
SendWILL (Ecomsend): grow your list with popups, send email campaigns & automate sales on autopilot.
| Back In Stock! Alert Engine | SendWILL Popup | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
Notify customers by restock alert when items are back in stock & create an out-of-stock waitlist.
| Metric | Back In Stock! Alert Engine | SendWILL Popup Email Marketing |
|---|---|---|
| Rating | 4.8 ★ | ★ 4.9 ★ |
| Total reviews | 19 | ★ 7.1k |
| Free plan | Yes | Yes |
| Pricing | Free | Free |
| Built for Shopify | — | ★ Yes |
| Listed features | 5 | 5 |
| Featured placements | — | 5 |
| Review velocity (30d) | — | 66 new |
| Languages | 1 supported | 23 supported |
| Listed since | Dec 2024 | Oct 2022 |
SendWILL Popup Email Marketing edges out Back In Stock! Alert Engine on rating (4.9★ vs 4.8★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number. Pricing entry tiers: Back In Stock! Alert Engine at Free, SendWILL Popup Email Marketing at Free. 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 (apps, orders, integrations) varies. SendWILL Popup Email Marketing has the larger user base (7,124 reviews vs 19), 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 by store size: small/early-stage merchants who need fast install and low risk should default to SendWILL Popup Email Marketing; mid-market and enterprise merchants with specific feature requirements should evaluate both — Back In Stock! Alert Engine's 19-review base may include the workflow context that matches your specific use case better than SendWILL Popup Email Marketing's broader-but-shallower coverage. 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.
Read each app's audit: Back In Stock! Alert Engine audit • SendWILL Popup Email Marketing audit
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| Last updated | — | — |
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| Keyword | Back In Stock! Alert Engine | SendWILL Popup |
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| #57 | #4 |
Not featured in any section recently.
| Signal | Back In Stock! Alert Engine | SendWILL Popup |
|---|---|---|
| Average rating | 4.8 ★ (19) | 4.9 ★ (7.1k) |
| Rating distribution | 5— 4— 3— 2— 1— | 595% 43% 31% 20% 11% |
| Reviews · last 7 days | — | +13 |
| Reviews · last 30 days | — | +66 |
| Reviews · last 90 days | — | +303 |
No reviews yet.
Both Back In Stock! Alert Engine and SendWILL Popup Email Marketing offer paid plans only. Back In Stock! Alert Engine starts at Free; SendWILL Popup Email Marketing starts at Free. Compare the per-tier features in the Pricing section above before committing.
SendWILL Popup Email Marketing has the higher average rating (4.9★ from 7,124 reviews) compared to Back In Stock! Alert Engine (4.8★ from 19 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.
It depends on what you're optimizing for. Back In Stock! Alert Engine fits better if you prioritize broader integrations; SendWILL Popup Email Marketing is the call if you need the higher-rated option. Read both apps' detail pages on AppRanks for the full feature breakdown, install counts, and recent listing changes.
Both apps are one-click installs from the Shopify App Store marketplace. SendWILL Popup Email Marketing has more onboarding documentation maturity (7,124 reviews vs 19), which usually translates to better-tested setup wizards and quicker time-to-value. AppRanks doesn't measure setup time directly — read the recent reviews on each app's detail page for merchant-reported install experience.
Back In Stock! Alert Engine typically suits early-stage and growth-mode stores based on its review-base composition (19 reviews). SendWILL Popup Email Marketing aligns more with established stores with steady traffic (7,124 reviews). Larger review bases generally mean the app has been load-tested at scale — relevant if you're processing high order volume or handling enterprise compliance requirements.
Great support — Gia was very helpful and quick to respond.
perfect work and help
Migration support varies by app and category. Back In Stock! Alert Engine and SendWILL Popup Email Marketing both publish their export options on their marketplace listing pages (or in their support docs); some apps offer one-click import from competitors, others require CSV. The fastest check: search "import from Back In Stock! Alert Engine" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
