Side-by-side comparison · 24 data points
Stamped helps you earn new customers, reward loyalty and grow your business in one app.
| Stamped Reviews & Loyalty | Sendvio | |
|---|---|---|
| Tagline | ||
| Description | ||
| Screenshots | images | images |
| Languages | ||
| Platforms | ||
| Developer | ||
| Listed |
| Metric | Stamped Reviews & Loyalty | Sendvio: Email Marketing & SMS |
|---|---|---|
| Rating | 4.7 ★ | ★ 4.8 ★ |
| Total reviews | ★ 3.8k | 179 |
| Free plan | — | ★ Yes |
| Pricing | From $23/month | ★ Free trial available |
| Built for Shopify | — | ★ Yes |
| Pricing tiers | 2 tiers | ★ 3 tiers |
| Listed features | 5 | 5 |
| Featured placements | 1 | — |
| Languages | 1 supported | 39 supported |
| Listed since | Jan 2016 | Oct 2013 |
Stamped Reviews & Loyalty and Sendvio: Email Marketing & SMS are evenly matched on rating (4.7★ vs 4.8★) — the differentiator comes down to pricing fit, feature breadth, and which app's interaction pattern suits your team's workflow.
On pricing, Sendvio: Email Marketing & SMS offers a free tier (Free trial available) while Stamped Reviews & Loyalty starts at From $23/month. The free option meaningfully reduces evaluation cost, particularly at low usage volumes where the entry-paid tier can outpace the value delivered.
Stamped Reviews & Loyalty has the larger user base (3,753 reviews vs 179), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Sendvio: Email Marketing & SMS'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.
Read each app's audit: Stamped Reviews & Loyalty audit • Sendvio: Email Marketing & SMS audit
| Last updated | — | — |
|---|
| Keyword | Stamped Reviews & Loyalty | Sendvio |
|---|---|---|
| photo reviews | #55 | #42 |
| product reviews | #73 | #56 |
| reviews | #60 | #82 |
Not featured in any section recently.
Sendvio: Email Marketing & SMS is the cheaper option — it offers a free plan (Free trial available). Stamped Reviews & Loyalty starts at From $23/month. Both publish their pricing on the Shopify App Store; AppRanks mirrors what's listed on each refresh cycle.
Stamped Reviews & Loyalty (4.7★, 3,753 reviews) and Sendvio: Email Marketing & SMS (4.8★, 179 reviews) are essentially tied on rating. Look at review velocity and individual reviewer quotes — both visible on each app's detail page — to differentiate.
Sendvio: Email Marketing & SMS holds the higher average rating (4.8★ vs 4.7★). 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. Stamped Reviews & Loyalty has the deeper published review base (3,753 vs 179), 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.
Stamped Reviews & Loyalty typically suits early-stage and growth-mode teams based on its published review base (3,753 reviews). Sendvio: Email Marketing & SMS typically suits early-stage and growth-mode teams based on its published review base (179 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. Stamped Reviews & Loyalty and Sendvio: Email Marketing & SMS 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 Sendvio: Email Marketing & SMS" in each app's help center. AppRanks does not track migration tooling directly — this is a category-specific capability worth verifying before commitment.
