OngoingAI

SellUp usage & market intelligence

Shopify rating

4.4 ★

131 reviews

What merchants actually report
4.52average· 129 reviews analyzed· 116 with written feedback
81% 5★12% ≤3★

41% of attributable reviewers are United States merchants. 8% had used the app for a year or more when they reviewed.

The developer replies to 12% of reviews overall and 75% of critical ones.

Recent reviewers rate SellUp 5.00, above its 4.52 lifetime average.

Rating · last 90d

5.00

Recent direction

Replies to reviews

12%

Developer response rate

Replies to critical

75%

On 3★ and below

Long-term reviewers

8%

Using 1yr+ at review

Top merchant markets

United States 41%United Kingdom 21%Australia 9%Germany 4%Spain 3%

Tenure when reviewed

under a day 23%days 42%months 27%a year or more 8%

Based on public merchant reviews, with newer feedback given more weight. OngoingAI matches each review to an identifiable store and the app they use.

Pricing
Free to install
Free TierFree to install
  • • Unlimited Upsells
  • • Up to 500 Monthly Views
  • • Action Upsell
  • • AI On Page Upsell
  • • Cart Upsell
Getting Started$14.99/month
  • • Unlimited Upsells
  • • Up to 5000 Upsell Views
  • • Action Upsell
  • • AI On Page Upsell
  • • Cart Upsell
What does SellUp do?

Create the best add-ons and upsells for your Shopify store. Create cart upsells in your themes own side drawer cart. Increase AOV with the best upsell app

  • Create best in class upsells and add-ons to increase revenue across your store
  • Offer add ons and cart upsells throughout the customer journey
  • Create One Check AI Upsells in 60 seconds. Sell more with SellUp
  • Create a frequently bought together section to increase average order value
  • Track the performance of your addon offers using the analytics suite

Features

Upsell and cross-sellCart upsellProduct page upsellThank you page upsellOne-click add-onsPop-upsCustom CSSCustom HTMLMulti-currencyCustom rulesWarrantiesShipping protectionGift wrapProduct add-onsProduct recommendationsFrequently bought togetherAI recommendationsSubscription upgradePriority processingA/B testingClick-through ratesConversion ratesFunnel performance
Review history
Daily review count on the Shopify App Store
131+5 · 24d~0.2/day· Rating steady at 4.4★
Aug 12Sep 4

Daily tracking from Aug 10, 2026 through today · 23 days observed

Catalog position
Within Upsell and cross-sell on the App Store
Rank by reviews
#27 of 637
Review percentile
96th
Rating percentile
60th
On the App Store
7.4 yrs
Works with
Integrations listed for SellUp: Add ons & Cart Upsell
CheckoutCustomer accountsShopify Admin
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Frequently asked questions

Create the best add-ons and upsells for your Shopify store. Create cart upsells in your themes own side drawer cart. Increase AOV with the best upsell app It's a upsell and cross-sell tool for ecommerce stores.