Side-by-side comparison
Track how long products are out of stock and focus on the inventory issues costing you most.
See why shoppers don't buy, then fix it with replays, heatmaps, surveys, checkout recording & AI
| Metric | SDT • Out of Stock Tracker | Propel Replay, Survey, Heatmap |
|---|---|---|
| Rating | ★ 5.0 ★ | 4.9 ★ |
| Total reviews | 2 | ★ 734 |
| Free plan | Yes | Yes |
| Pricing | Free trial available | Free plan available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | 4 tiers | 4 tiers |
| Listed features |
On the measured data here, Propel Replay, Survey, Heatmap leads on more dimensions (4 vs 1). Pick SDT • Out of Stock Tracker if one of the points where it leads is what you need.
Built only from the Shopify App Store listing data shown on this page. AppRanks does not accept payment to influence comparisons. Read the methodology
Read each app's audit: SDT • Out of Stock Tracker audit • Propel Replay, Survey, Heatmap audit
| Field | SDT • Out of Stock Tracker | Propel Replay, Survey, Heatmap |
|---|---|---|
| Tagline | ||
| Listing audit | 85/100 listing audit | 88/100 listing audit |
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer |
| 5 |
| 5 |
| Featured placements | — | 1 |
|---|
| Languages | 1 supported | 1 supported |
|---|
| Listed since | Jan 2026 | Jun 2021 |
|---|
| Listed |
|---|
| Keyword | SDT • Out of Stock Tracker | Propel Replay, Survey, Heatmap |
|---|---|---|
| session replay heatmaps | Not ranked | #1 |
| heatmaps | Not ranked | #1 |
| session replay analytics | Not ranked | #4 |
| out of stock management | #23 | Not ranked |
Not featured in any section recently.
Propel Replay, Survey, Heatmap is cheaper to start with — it offers a free plan and SDT • Out of Stock Tracker doesn't list one. Prices are as listed on the Shopify App Store; check what each tier includes in the Pricing section above.
SDT • Out of Stock Tracker (5.0★, 2 reviews) and Propel Replay, Survey, Heatmap (4.9★, 734 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
SDT • Out of Stock Tracker holds the higher average rating (5.0★ vs 4.9★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.
Both apps are one-click installs from the Shopify App Store. AppRanks doesn't measure setup time directly; Propel Replay, Survey, Heatmap has more published reviews to read for user-reported install experience (734 vs 2).
AppRanks cannot say which fits a larger or smaller operation — there is no store-size measurement in the Shopify App Store data. What it can show: SDT • Out of Stock Tracker has 2 published reviews; Propel Replay, Survey, Heatmap has 734 published reviews. Compare plan limits and pricing tiers against your own volume.
Migration support varies by app and category. SDT • Out of Stock Tracker and Propel Replay, Survey, Heatmap 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 SDT • Out of Stock Tracker" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.