Side-by-side comparison · 24 data points
Notify Customers with Restock Alert when items are back in stock & make out-of-stock waitlist
| Back In Stock,Notify Me | Sale Star | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed | ||
| Last updated | — | — |
| Metric | Back In Stock,Notify Me: Kbite | Sale Star: Size Chart & Nudges |
|---|---|---|
| Rating | 5.0 ★ | — |
| Total reviews | 3.7k | 0 |
| Free plan | ★ Yes | — |
| Pricing | ★ Free plan available | $1.99/month |
| Built for Shopify | ★ Yes | — |
| Pricing tiers | ★ 4 tiers | 1 tier |
| Listed features | 5 | 5 |
| Languages | 1 supported | 1 supported |
| Listed since | May 2021 | Dec 2025 |
Based on the data on this page, Back In Stock,Notify Me: Kbite is the stronger choice for most Shopify App Store merchants — 5.0★ vs Sale Star: Size Chart & Nudges's 0.0★ is a meaningful gap that usually reflects real product or support quality differences across the user base. On pricing, Back In Stock,Notify Me: Kbite offers a free tier (Free plan available) while Sale Star: Size Chart & Nudges starts at $1.99/month. For early-stage stores or merchants validating fit, the free-tier path lets you run the app on real orders before committing budget. Back In Stock,Notify Me: Kbite has the larger user base (3,705 reviews vs 0), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Sale Star: Size Chart & Nudges'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 Back In Stock,Notify Me: Kbite; mid-market and enterprise merchants with specific feature requirements should evaluate both — Sale Star: Size Chart & Nudges's 0-review base may include the workflow context that matches your specific use case better than Back In Stock,Notify Me: Kbite'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,Notify Me: Kbite audit • Sale Star: Size Chart & Nudges audit
| Keyword | Back In Stock,Notify Me | Sale Star |
|---|---|---|
| stock alerts | #1 | Not ranked |
| restock alerts | #1 | Not ranked |
| restock | #1 | Not ranked |
Back In Stock,Notify Me: Kbite is the cheaper option — it offers a free plan (Free plan available). Sale Star: Size Chart & Nudges starts at $1.99/month. Both publish their pricing on the Shopify App Store marketplace; AppRanks mirrors what's listed on each refresh cycle.
It depends on what you're optimizing for. Back In Stock,Notify Me: Kbite fits better if you prioritize rating consistency; Sale Star: Size Chart & Nudges is the call if you need the larger user base. 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. Back In Stock,Notify Me: Kbite has more onboarding documentation maturity (3,705 reviews vs 0), 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,Notify Me: Kbite typically suits early-stage and growth-mode stores based on its review-base composition (3,705 reviews). Sale Star: Size Chart & Nudges aligns more with early-stage and growth-mode stores (0 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.
Migration support varies by app and category. Back In Stock,Notify Me: Kbite and Sale Star: Size Chart & Nudges 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 Sale Star: Size Chart & Nudges" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
