CartBoost AI vs PromoBrain
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 14, 2026 for CartBoost AI, Oct 13, 2026 for PromoBrain.
The short answer
- On the Shopify App Store: CartBoost AI 5.0 from 1 reviews and PromoBrain 5.0 from 1 reviews.
- Only CartBoost AI lists a free plan. Paid plans start at $5/month for CartBoost AI and $49/month for PromoBrain.
- PromoBrain lists 17 features CartBoost AI’s listing doesn’t mention, including Automations, Coupons, Cross-sell discounts.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
Starter Plan
- · Basic customization
- · One progress goal
Basic Plan
- · Basic performance tracking
- · Email support
- · Mobile & desktop support
- · More spacing, Smoot edge styling
- · One progress goal
Pro Plan
- · A/B Testing tools
- · Advanced customization
- · Full analytics dashboard
- · Priority email support
- · Up to 4 progress goals
- · Upsell widget
Starter Plan
- · 7 days support & setup assistance
- · AI Budget Optimizer
- · AI Expert Promotion
- · Incrementality performance analytics
- · Premium shopper-facing promotion element
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureCartBoost AI helps you create personalized shopping experiences with smart upsells, product rewards, and conversion-focused tools. Engage customers using targeted popups, limited-time countdowns, and custom gift incentives based on cart activity. Easily manage offers, rewards, and display logic from a simple dashboard.
Promobrain uses Agentic AI to personalize every discount and promotion for each customer in real-time. Instead of one-size-fits-all offers, each shopper receives promotions tailored to their behavior and preferences. The AI operates autonomously - strategizing, executing, and optimizing 24/7 - while you maintain control through transparent decisions and an AI chat interface. Setup takes minutes with no coding.
- Generate tailored reward and upsell headlines instantly using AI.
- Deliver personalized rewards based on cart behavior and product interaction.
- Easily change behavior, styling, and conditions, all from the dashboard.
- AI creates 1:1 personalized discounts for each customer in real-time
- Autonomous AI strategizes, executes, and optimizes promotions 24/7 within budget
- Full control control with transparent AI decisions, guardrails, AI chat.
- Setup in minutes with no coding, no theme conflicts, no data needs -customizable
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 |  CartBoost AI |  PromoBrain |
|---|---|---|
| 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 | CartBoost AI | PromoBrain |
|---|---|---|
| App Store rating | 5.0 ★ | 5.0 ★ |
| App Store reviews | 1 | 1 |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | CartBoost AI | PromoBrain |
|---|---|---|
| Free plan | Yes | Not listed |
| Lowest paid monthly plan | $5/month(ahead) | $49/month |
| Longest free trial | Not listed | Not listed |
| Plans listed | 3 | 1 |
Listing
| Measure | CartBoost AI | PromoBrain |
|---|---|---|
| Shopify category rank | #726 | Not enough data |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jul 28, 2025 | Feb 6, 2026 |
| Languages | 2 | 1 |
| Developer | Boost | PromoBrain |
FAQ
CartBoost AI and PromoBrain: common questions
- Is CartBoost AI or PromoBrain cheaper?
- Only CartBoost AI lists a free plan. Paid plans start at $5/month for CartBoost AI and $49/month for PromoBrain. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Which has better reviews, CartBoost AI or PromoBrain?
- On the Shopify App Store: CartBoost AI 5.0 from 1 reviews and PromoBrain 5.0 from 1 reviews.
- What features does each app list that the other doesn’t?
- CartBoost AI lists 5 the others don’t mention, such as APIs and webhooks, Custom discounts, Free shipping, Gifts. PromoBrain lists 17 the others don’t mention, such as Automations, Coupons, Cross-sell discounts, Currency conversion. 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 14, 2026 for CartBoost AI, Oct 13, 2026 for PromoBrain; 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 14, 2026 for CartBoost AI, Oct 13, 2026 for PromoBrain. 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.