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1. Listing metadata
Field-level data| MambaSMS | XFlow Back in Stock Alert | |
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| MambaSMS | XFlow Back in Stock Alert | |
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Automate back in stock alerts and send unlimited emails with personalization to recover lost sales
| Metric | MambaSMS Email &SMS Marketing | XFlow Back in Stock Alert |
|---|---|---|
| Rating | 5.0 ★ | 5.0 ★ |
| Total reviews | 8 | ★ 60 |
| Free plan | Yes | Yes |
| Pricing | Free to install | Free plan available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | 3 tiers | 3 tiers |
| Listed features | 3 | ★ 5 |
| Featured placements | — | 1 |
| Languages | 1 supported | 5 supported |
| Listed since | Dec 2021 | Dec 2025 |
MambaSMS Email &SMS Marketing and XFlow Back in Stock Alert are evenly matched on rating (5.0★ vs 5.0★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow.
Pricing entry tiers: MambaSMS Email &SMS Marketing at Free to install, XFlow Back in Stock Alert 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.
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.
Read each app's audit: MambaSMS Email &SMS Marketing audit • XFlow Back in Stock Alert audit
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| Keyword | MambaSMS | XFlow Back in Stock Alert |
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| send unlimited | Not ranked | #2 |
| lost | Not ranked | #3 |
| back in stock alerts | Not ranked | #5 |
Not featured in any section recently.
No tracked changes.
Both MambaSMS Email &SMS Marketing and XFlow Back in Stock Alert offer paid plans only. MambaSMS Email &SMS Marketing starts at Free to install; XFlow Back in Stock Alert starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.
MambaSMS Email &SMS Marketing (5.0★, 8 reviews) and XFlow Back in Stock Alert (5.0★, 60 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
AppRanks cannot separate these two on rating — both sit at 5.0★. XFlow Back in Stock Alert does carry the larger published review base (60 vs 8). Read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. XFlow Back in Stock Alert has the deeper published review base (60 vs 8), 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.
MambaSMS Email &SMS Marketing typically suits early-stage and growth-mode teams based on its published review base (8 reviews). XFlow Back in Stock Alert typically suits early-stage and growth-mode teams based on its published review base (60 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.
Migration support varies by app and category. MambaSMS Email &SMS Marketing and XFlow Back in Stock Alert 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 MambaSMS Email &SMS Marketing" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
