Fastr vs Klaviyo

Klaviyo: Email Marketing & SMS edges out Fastr: SMS & Email Marketing on rating (4.7★ vs 4.5★), but the gap is small enough that pricing fit and feature differentiation should drive the decision more than the headline number.

Pricing entry tiers: Fastr: SMS & Email Marketing at Free plan available, Klaviyo: Email Marketing & SMS 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.

Klaviyo: Email Marketing & SMS has the larger user base (3,292 reviews vs 58), which usually maps to broader integration coverage, faster bug-fix cadence, and a deeper bench of community workflow patterns. Fastr: SMS & Email Marketing's smaller cohort can be an advantage for niche workflows where the bigger app has accumulated bloat.

Recommended by size: small/early-stage merchants who need fast install and low risk should default to Klaviyo: Email Marketing & SMS; mid-market and enterprise merchants with specific feature requirements should evaluate both — Fastr: SMS & Email Marketing's 58-review base may include the workflow context that matches your specific use case better than Klaviyo: Email Marketing & SMS'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.

Is Fastr: SMS & Email Marketing or Klaviyo: Email Marketing & SMS cheaper?

Both Fastr: SMS & Email Marketing and Klaviyo: Email Marketing & SMS offer paid plans only. Fastr: SMS & Email Marketing starts at Free plan available; Klaviyo: Email Marketing & SMS starts at Free plan available. Compare the per-tier features in the Pricing section above before committing.

Which has better reviews, Fastr: SMS & Email Marketing or Klaviyo: Email Marketing & SMS?

Klaviyo: Email Marketing & SMS has the higher average rating (4.7★ from 3,292 reviews) compared to Fastr: SMS & Email Marketing (4.5★ from 58 reviews). Both are tracked daily by AppRanks, so the figures here update each refresh cycle.

Should I choose Fastr: SMS & Email Marketing or Klaviyo: Email Marketing & SMS?

Klaviyo: Email Marketing & SMS holds the higher average rating (4.7★ vs 4.5★). That is the one dimension AppRanks can separate them on here — read both apps' detail pages for the feature breakdown and recent listing changes.

Which is faster to set up, Fastr: SMS & Email Marketing or Klaviyo: Email Marketing & SMS?

Both apps are one-click installs from the Shopify App Store. Klaviyo: Email Marketing & SMS has the deeper published review base (3,292 vs 58), 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.

Which works better for small vs large Shopify App Store merchants?

Fastr: SMS & Email Marketing typically suits early-stage and growth-mode teams based on its published review base (58 reviews). Klaviyo: Email Marketing & SMS typically suits early-stage and growth-mode teams based on its published review base (3,292 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.