Mason

Shopify cart customization app by Mason·Run personalized offers, upsells, tiered and timed discounts on your cart (Black Friday ready)

Snapshot

#393of 472 inCart customization

Mason is newly listed on the Shopify App Store. Ongoing.AI is observing daily category rank, search-keyword position, install footprint, and listing changes from launch — first tracked May 28, 2026. The trajectory is being captured before the first reviews accumulate.

CategoriesCart customizationCountdown timer

Pricing

From $149/mo

paid

Built for Shopify

No

Years live

1

launched Nov 18, 2024

Last updated

Jun 30, 2026

Shopify listing

Catalog position

Where Mason sits in the App Store.

Rank and percentile inside the Cart customization category — the competitive shape of the niche around this app.

Rank in Cart customization

#393

of 472 active apps

Review count percentile

0th

vs category siblings

Rating percentile

0th

vs category siblings

Years on App Store

1

since 2024

Listing change cadence

What Mason has changed lately.

Every pricing tweak, tagline refresh, and Shopify-side listing ping. Captured from Ongoing.AI’s per-scrape diff log — the cadence and the content of changes, in one strip.

Listing changes · last 21 days+12shopify_lastmod: 2026-06-04 → 2026-06-16shopify_lastmod: 2026-06-16 → 2026-06-25shopify_lastmod: 2026-06-25 → 2026-06-26shopify_lastmod: 2026-06-26 → 2026-06-30Jun 13, 26Jun 23, 26Jul 4, 26

Shopify Lastmod · Jul 1

2026-06-26 → 2026-06-30

Shopify Lastmod · Jun 27

2026-06-25 → 2026-06-26

Shopify Lastmod · Jun 26

2026-06-16 → 2026-06-25

PricingIdentity & listingCadence

Plans

Mason pricing tiers.

Growth Plan

$149/month

  • - Integrated attribution tags
  • - Integrated insights
  • - Upsell, cross sell, freebies, offers, coupons, behavioral discounts, tiered discounts

Capabilities

What Mason can do.

The 39 capabilities Mason lists across each of its 2 categories, in Shopify’s own taxonomy. Pulled directly from the App Store listing.

Cart customization

Cart display

12
  • Announcements
  • Custom styles
  • Custom rules
  • Custom HTML
  • Custom CSS
  • Discount fields
  • Promotions
  • Mobile responsive
  • Cart drawer
  • Sticky cart
  • Terms checkbox
  • Countdown timers

Upselling

8
  • Product recommendations
  • Buy more, save more
  • Free shipping
  • Frequently bought together
  • Shipping bar
  • Tiered rewards
  • Free gifts
  • Bulk discounts

Checkout customization

2
  • Automatic discounts
  • One-click upsell

Countdown timer

Display options

8
  • Custom CSS
  • Color and font
  • Custom text
  • Custom position
  • Announcement bar
  • Sticky banner
  • Animations
  • Cart page

Timing options

5
  • Scheduled
  • Date range
  • Fixed end date
  • Fixed minute
  • One-time

Timer type

4
  • Daily deals
  • Flash sales
  • Expiration date
  • Checkout

FAQ

Mason — frequently asked questions.

What is Mason on Shopify?
Mason, officially listed on the Shopify App Store as Mason: AI Smart Cart & Upsells, is a Shopify app in the Cart customization category. AI Smart Cart enables merchants to optimise cart completion rates and improve AOV with personalized upsells, offers & discounts. Tailored for Plus merchants looking for advanced cart customisation, and ability to run freebies, tiered promotions, timed discounts, behavioral offers, custom rewards & incentives for improving sales and basket size. Using real-time analytics, it captures and analyzes browse behavior, enabling precise, tailored offers that customers are most likely to purchase.
How much does Mason cost?
Mason has a single paid plan at $149/month on the Shopify App Store.
Is Mason free?
No, Mason is a paid Shopify app. Plans start at $149/month on the Shopify App Store.
When was Mason launched?
Mason launched on November 18, 2024 — over 1 year on the Shopify App Store.
Is Mason Built for Shopify?
Mason does not currently carry Shopify's Built for Shopify badge. The badge is awarded to apps that meet Shopify's published standards for performance, ease of use, and merchant value — many high-quality apps operate without it.
What are the best Mason alternatives?
Merchants commonly compare Mason with Upsell.com, Essential Upsell & Cross Sell, Essential Countdown Timer Bar, and Hextom. Each alternative covers a similar use case but differs on pricing model, integration depth, and the specific themes merchants praise in reviews — see the alternatives section above for a side-by-side.

Alternatives

Apps merchants pick instead.

Upsell.com ex ReConvert

Upsell.com ‑ ReConvert Upsell

4.80★2,827

Known for: customer-support

Essential Bundles & Upsells

Essential Upsell & Cross Sell

5.00★2,188

Essential Apps

Essential Countdown Timer Bar

5.00★1,508

Hextom

Hextom: Upsell Sales Boost

4.80★1,415

Known for: bug

Browse more inAll Cart customization apps All Countdown timer apps

Methodology

Where the numbers come from.

Ratings, review counts, pricing tiers, “Built for Shopify”, launch date, and category memberships come from the live Shopify App Store listing — refreshed daily by Ongoing.AI’s crawler. The review-count trajectory is the diff between today’s snapshot and snapshots from 7 and 28 days ago. Topic counts and sentiment come from the review corpus, topic-tagged with Claude. Install footprint is observed via Ongoing.AI’s tech-detection pass against actively-tracked Shopify storefronts. Catalog position is computed at snapshot time against every active app sharing the primary category. Snapshot generated .

Find every brand running Mason.

Ongoing.AI tracks every Shopify brand’s app stack daily. Pull the full install list, filter by vertical or geography, and catch the moment merchants install — or churn off.

Track Mason — free Start free

Prefer the source? View Mason on the Shopify App Store ↗