Relay: AI SMS Cart Recovery vs Voxicart AI
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 19, 2026 for Relay, Oct 13, 2026 for Voxicart AI.
The short answer
- Paid plans start at $29/month for Relay and $12/month for Voxicart AI.
- Relay lists 4 features Voxicart AI’s listing doesn’t mention, including Behavior tracking, Conversion tracking, Custom branding.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Spark
- · 400 credits per month ($0.1 overage)
- · AI two-way conversations, zero setup
- · Automatic discounts
- · Conversation logs (read-only)
- · Multi-currency support
- · Product sync every 7 days
Engage
- · 1,300 credits per month ($0.085 overage)
- · Everything in Spark, plus:
- · Product sync every 3 days
- · Up to 5 knowledge base documents
Convert
- · 3,850 credits per month ($0.075 overage)
- · Daily product sync
- · Everything in Engage, plus:
- · Priority support
- · Up to 15 knowledge base documents
Scale
- · 11.3K credits per month ($0.065 overage)
- · Everything in Convert, plus:
- · Founder-led onboarding
- · Product sync every 6 hours
- · Up to 50 knowledge base documents
Starter
Pro
Enterprise
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureWhen a customer leaves items at checkout, Relay sends them an SMS and starts a real two-way conversation. The AI knows your products, pricing, shipping, and policies. If a customer asks "does this come in blue?" or "how fast is delivery?", it answers with real data from your store. Relay tries to close at full price first. It only offers a discount if the customer genuinely needs a nudge.
When a shopper leaves without completing checkout but adds their contact details, Voxicart AI automatically calls the customer after a scheduled gap. A friendly human like AI agent calls the customer, reminds them about their cart, and — if you choose — offers a configurable discount to nudge them over the finish line. All within TRAI-compliant calling hours (9 AM–9 PM).
- AI sales agent trained to close, not just chat. Recovers carts through SMS.
- Auto-syncs products, pricing, policies, and inventory for real-time answers
- Margin-protecting discounts that only trigger as a last resort, not a default
- Multi-currency support that auto-detects the customer's local currency
- AI voice agent automatically calls customers with abandoned carts
- Creates custom discount and tries to convince the customer to complete purchase
- SMS with link to cart sent if the customer chooses to accept the discount .
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 |  Relay |  Voxicart AI |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | Relay | Voxicart AI |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 1 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | Relay | Voxicart AI |
|---|---|---|
| Free plan | Not listed | Not listed |
| Lowest paid monthly plan | $29/month | $12/month(ahead) |
| Longest free trial | 14 days | 14 days |
| Plans listed | 4 | 3 |
Listing
| Measure | Relay | Voxicart AI |
|---|---|---|
| Shopify category rank | #209(ahead) | #260 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | May 13, 2026 | May 25, 2026 |
| Languages | 1 | 1 |
| Developer | Relay | FounderLabs |
FAQ
Relay and Voxicart AI: common questions
- Is Relay or Voxicart AI cheaper?
- Paid plans start at $29/month for Relay and $12/month for Voxicart AI. 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?
- Relay lists 4 the others don’t mention, such as Behavior tracking, Conversion tracking, Custom branding, Multi-language. Voxicart AI lists 4 the others don’t mention, such as Cross-device carts, Multi-channel messaging, Targeting rules, Time-limited offers. 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 Oct 19, 2026 for Relay, Oct 13, 2026 for Voxicart AI; 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 Oct 19, 2026 for Relay, Oct 13, 2026 for Voxicart AI. 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.