01
One focused cart offer
Choose a product yourself on Basic, or let Pro make a cart-aware automatic product suggestion.
Wix · Wix StoresBy MarketForge
CartSell Side Cart Upsell for WixMake the side cart earn its place in the checkout journey.
Choose a product or let CartSell suggest one for your Wix side cart. Shoppers can select available options, change quantity, and add the offer without leaving the cart.
The primary button opens the official Wix App Market listing, where you can review the current plan before installing.
No code required
Free plan available
Built for Wix
Best for
Wix Stores that want a focused cross-sell inside the native side-cart experience.
Plan
Free plan available. See Wix for current pricing and promotions.
Requirements
Wix Stores and the Wix side-cart plugin enabled.
What you get
One focused job, done well.
CartSell Side Cart Upsell is designed around a clear outcome, with the controls needed to make it fit your Wix site.
02
Side-cart native flow
Keep shoppers in the cart while they review and add the suggested product.
03
Options and quantity support
Let shoppers select available product options and quantity before adding the offer.
04
Cart-aware Pro suggestions
Use what is already in the shopper’s cart to suggest a relevant catalog product, with your selected offer as the fallback.
Setup
Live in three steps.
Configure it inside Wix, preview the experience, and publish when it looks right.
Add CartSell to Wix- 1
Install CartSell on a site that uses Wix Stores.
- 2
Enable the site plugin and choose or confirm the product you want to promote.
- 3
Preview the side cart, publish, and test the direct add-to-cart flow on your live site.
Questions
Before you install
Where does the offer appear?
The selected product appears inside the Wix side cart after the site plugin is enabled.
Can shoppers choose variants and quantity?
Yes, when those options are available for the promoted product.
What customer information does CartSell store?
CartSell stores site-specific configuration and app state in private Wix Data. It reads catalog data and current-cart product IDs to choose and render the offer, but it does not map or store customer names, email addresses, postal addresses, or payment information. The privacy notice below describes retained legacy records.
Are performance analytics available?
No. Performance analytics are not currently available, and revenue attribution is paused. CartSell does not display historical estimates or create new analytics records in the current version.
App-specific privacy, terms, and support
Jump directly to this app's legal information or support channel.
App privacy notice
CartSell Side Cart Upsell Privacy Policy
CartSell reads catalog and current-cart product IDs needed to choose and display a side-cart offer, and it stores site- and installation-specific app configuration. Performance analytics and revenue attribution are paused: the current version does not create new impression, add-to-cart, acceptance, conversion, revenue, or PostHog records. It does not map or store customer names, email addresses, postal addresses, or payment details.
Effective: August 21, 2026Last updated: August 21, 2026Provider: MarketForge
1. Scope and who is responsible
This notice describes the data practices of the CartSell Side Cart Upsell app for Wix. MarketForge is the app provider and is responsible for the app data it controls. Wix, the Wix site owner, and the service providers listed below may separately control or process information under their own terms and privacy notices.
This notice covers the app itself. Visiting MarketForge.tech is also subject to the MarketForge website privacy policy. Use of the app is governed by its app-specific Terms and Conditions, which supplement our general Terms of Service.
2. Merchant information we access or store
Information supplied by or associated with the Wix site owner who installs and configures the app.
Catalog and inventory data
The app accesses product IDs, names, prices, media, available options, and stock status to configure and render the promoted product.
Current-cart context
The app reads a bounded list of product IDs already in the current cart. Pro can pass those IDs to Wix’s product-recommendation service to choose an offer; the current version does not persist them for analytics or attribution.
Configuration and app state
The selected product, enabled state, installation and site binding, plan tier, revision, migration state, retained legacy review or notification fields, and browser-local onboarding state are processed to run the app safely.
3. Site-visitor information
Information processed when the app appears on, or is used from, a merchant's live Wix site.
Offer and direct-cart operation
CartSell reads current-cart product IDs and the shopper’s product-option and quantity choices to show the offer and ask Wix to add it to that cart. The current version does not turn those interactions into new app-owned analytics records.
Paused analytics and retained legacy records
Legacy private analytics records may remain from older app versions, including cart, product, order, amount, currency, impression, or add-to-cart fields. The current version does not read, write, query, or aggregate those records; they are not displayed or used to estimate results.
4. Why we process information
Provide the app
Configure and operate the feature requested by the merchant, maintain authorized app access, and deliver support. This is necessary to perform our agreement with the merchant.
Keep the product working
Diagnose errors, protect the service, prevent abuse, and preserve reliability. We rely on our legitimate interest in operating a safe, dependable product.
Improve setup and performance
Understand onboarding and app-level outcomes where the app-specific disclosures above describe analytics. We limit this to what is reasonably needed for product improvement.
Meet legal obligations
Respond to valid legal requests, enforce our terms, and keep records when applicable law requires it.
The Wix site owner is responsible for choosing an appropriate legal basis, displaying required notices, and collecting any consent required for the app's use on their site. MarketForge does not use app visitor data for unrelated advertising or sell personal information.
5. Service providers and disclosures
The app shares or makes information available only as needed to provide the functions described here, comply with law, or protect the service.
App hosting and authentication, Wix Stores catalog and current-cart APIs, product recommendations, private Wix Data storage, and plan information.
Providers may process information in countries other than the visitor's or merchant's home country. Their privacy notices describe the safeguards and rights that apply to information they control.
6. Storage and retention
- App configuration and retained legacy state do not currently have an automatic expiry.
- Legacy private analytics records may remain until a verified deletion request is completed. The current version does not display or use them and does not create new analytics or attribution records.
- Browser-local onboarding state remains until browser site data is cleared. Verified deletion requests can be made using the contact below.
We use reasonable administrative and technical safeguards, including platform access controls and encrypted transport where supported. No internet or storage system is completely secure. Where an app uses settings in a Wix live-site embed, those settings are visible to the public widget and must not contain secrets.
7. Your choices and privacy rights
- Merchants can change the promoted product, disable the site plugin, or remove the app.
- Merchants can request an export, correction, or deletion of MarketForge-controlled CartSell records after account verification.
- Requests can be sent to support@marketforge.tech. Wix handles Wix-controlled platform data under its own policies.
Depending on location, an individual may have rights to access, correct, delete, restrict, object to, or receive a copy of personal information, and to withdraw consent without affecting earlier lawful processing. We may need to verify the requester and the relevant Wix site before acting. A complaint may also be made to the appropriate data-protection authority.
Changes and age limits
We will update the date above when this notice changes. If a change materially affects app data practices, we will provide notice through an appropriate channel, such as the app dashboard, Wix listing, or email when available. The app is intended for business websites and is not directed to children under 16.
Contact MarketForge
Ask a privacy question or submit a verified data request. Please include the app name and the Wix site or account needed to locate the relevant records; do not email passwords or payment information.
support@marketforge.techApp terms
CartSell Side Cart Upsell Terms and Conditions
These app-specific terms govern use of CartSell Side Cart Upsell and supplement MarketForge's general Terms of Service. If the two conflict about this app, these app-specific terms control to the extent of that conflict.
Effective: July 12, 2026Last updated: July 12, 2026Provider: MarketForge
1. Service and eligibility
CartSell Side Cart Upsellis a business tool for Wix websites. You must control or be authorized to manage the Wix site where it is installed and must use the app in compliance with applicable law, Wix's terms, and these terms.
The current product scope is the scope described on this page. Features that are labelled beta, pre-release, planned, configured, or subject to verification are not promised as generally available.
2. Your responsibilities
- Keep your Wix account secure and give app access only to authorized people.
- Review the app's configuration, output, and storefront behavior before and after publishing.
- Maintain lawful rights to the site content, catalog data, destinations, messages, or third-party account details you configure.
- Provide visitors with any notices, consent choices, and request channels required for your use of the app.
- Do not misuse the app, interfere with its operation, bypass access or plan controls, or use it to violate another person's rights.
3. Wix platform and third-party services
Wix is a separate platform provider. Wix controls Wix accounts, hosting, the App Market, platform APIs, site plans, and platform availability under its own terms. MarketForge provides and supports CartSell Side Cart Upsell; Wix does not provide MarketForge support.
The app may depend on Wix products or the third-party services identified in the CartSell Side Cart Upsell Privacy Policy. Changes, outages, restrictions, or discontinued functions in those services can affect the app. MarketForge does not control those services.
4. Plans, billing, cancellation, and refunds
Current plan options, prices, billing periods, trials, and promotions are the options shown in Wix when you install or manage the app. If you choose a paid plan, Wix or the Wix App Market processes the transaction and applies the billing terms shown at checkout.
Manage plan changes or cancellation through Wix. Refunds and credits are subject to the Wix or App Market process and applicable law. Contact MarketForge if app-specific information is needed to review a request; nothing here limits non-waivable consumer rights.
5. Availability and no performance guarantee
MarketForge uses reasonable care to operate the app, but does not promise uninterrupted, error-free, instantaneous, or permanently available service. Results can depend on Wix, third-party providers, site configuration, data supplied to the app, browser behavior, and network conditions.
To the extent permitted by law, the app is provided as available without a guarantee of revenue, conversion, search ranking, traffic, delivery timing, customer response, or any other specific business outcome.
6. Changes, suspension, and ending use
We may update the app or these terms to improve the service, address security or legal needs, or respond to platform changes. We will update the date above and use an appropriate notice channel for a material change when reasonably available.
You can stop using the app and uninstall it through Wix. MarketForge may restrict or suspend access for abuse, security risk, non-payment of an applicable plan, legal requirements, or a material breach of these terms. Sections that by their nature should continue after use ends—including payment obligations already incurred, ownership, disclaimers, and legal limits—continue to apply.
Support
Contact MarketForge with the app name, the relevant Wix site, and a clear description of the issue. Do not send passwords, full payment-card details, or unnecessary visitor information.
Contact MarketForge
support@marketforge.techReady to try CartSell?
Install from the Wix App Market and configure the first version on your own site.
Add CartSell to Wix