Klaviyo: Product Reviews vs Rivius ‑ WhatsApp Reviews
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 9, 2026 for Klaviyo, Oct 22, 2026 for Rivius.
The short answer
- Paid plans start at $25/month for Klaviyo and $9/month for Rivius.
- Klaviyo lists 10 features Rivius’s listing doesn’t mention, including All reviews page, Carousels, Filtering.
Head to head
- United States
- Australia
- United Kingdom
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Free
- · Automate reviews with email and SMS
- · Custom questions
- · Import existing reviews
- · Reward customers with unique coupons
Reviews
- · All free features
- · Review request timing based on delivery
Free
Starter
Pro
Elite
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureKlaviyo Reviews collects text, photo, and video reviews with automated email and SMS requests from prebuilt flows. Verified reviews build trust, and AI helps customers write reviews and drafts your replies in your brand voice. Show ratings, summaries, and reviews in on-brand widgets, sync to Google Shopping, and add custom questions.
Your customers open 98% of WhatsApp messages but ignore 80% of emails. That's why your review requests go unanswered. Rivius sends automated WhatsApp messages after each order and collects rich reviews — photos, videos, and voice notes — through a natural conversation. No forms, no friction. Import your existing reviews from Judge.me, Loox, Yotpo, Stamped, or Revie in one click.
- Automate review requests with email and SMS flows
- Showcase top reviews in emails & on your website
- Build segments based on star rating & custom questions
- Reward reviewers with a unique coupon
- Send automated, personalized review requests via WhatsApp.
- Collect rich user-generated content that builds trust and drives conversions.
- Analyze sentiment and themes to deliver actionable insights from reviews
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  Klaviyo |  Rivius |
|---|---|---|
| Detected stores | 22,908 | Not published |
| Net store change, 28 days | +258 | 0 |
| Stores added, 28 days | 497 | Not enough data |
| Big-brand share | 13% | Not enough data |
| Top store categories | Apparel & Accessories, Health & Beauty, Home & Garden | Not published |
| Top store countries | United States, Australia, United Kingdom | Not published |
Reviews
| Measure | Klaviyo | Rivius |
|---|---|---|
| App Store rating | 4.8 ★ | Not published |
| App Store reviews | 234 | Not published |
| New reviews, 28 days | 3 | Not enough data |
| Reviewers a year or more in | 43% | Not enough data |
FAQ
Klaviyo and Rivius: common questions
- Is Klaviyo or Rivius cheaper?
- Paid plans start at $25/month for Klaviyo and $9/month for Rivius. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- Klaviyo lists 10 the others don’t mention, such as All reviews page, Carousels, Filtering, Forms. Rivius lists 7 the others don’t mention, such as Grid layout, Pop-ups, Review highlights, Social media UGC. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 9, 2026 for Klaviyo, Oct 22, 2026 for Rivius; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 9, 2026 for Klaviyo, Oct 22, 2026 for Rivius. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.