Airtight: Discount Code Rules vs CartShield: Discount Blocker
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Oct 13, 2026 for Airtight, Nov 12, 2026 for CartShield.
The short answer
- Both list a free plan. Paid plans start at $19.99/month for Airtight and $4.99/month for CartShield.
- CartShield lists 7 features Airtight’s listing doesn’t mention, including Cart discounts, Coupons, Discount stacking.
Head to head
Free
- · 1 blocked product type
- · Country restrictions
- · Customer tag & segment targeting
- · Discount cap per order
- · Live chat & email support
- · Per-customer use limits
Starter
- · 5 blocked product types
- · All discount rules included
- · Ideal for growing stores
- · Live chat & email support
- · Up to 10 reusable codes
- · Up to 5,000 unused bulk codes at a time
Pro
- · All discount rules included
- · Ideal for high-volume stores
- · Priority support
- · Unlimited blocked product types
- · Unlimited bulk codes
- · Unlimited reusable codes
Free
- · 1 blocking rule
- · 2 rule types only
- · Basic error messages
- · Block All & Specific Codes
- · Email support
- · Limited to 1 rule
Basc
- · 5 blocking rules
- · 5 rules max
- · 6 rule types
- · Priority support
- · Sale item blocking
- · Smart Discounts
Pro
- · All 9 rule types
- · Allow List (whitelist)
- · Customer tag blocking
- · Priority support
- · Priority-based evaluation
- · Product tag blocking
Lifetime
- · All future features
- · Early adopter price
- · Everything in Pro
- · One-time payment
- · Priority support forever
- · Smart Discounts
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureGo beyond Shopify's built-in codes and help prevent discount code abuse. Limit uses per customer, choose how many items per order get the discount, or allow a code only on small carts. Restrict by customer tag or country, protect free gifts from coupon stacking, and match collections of any size. Generate single-use bulk codes or import yours by CSV.
CartShield lets you control which discount codes are accepted at checkout and on products. Create rules to block all codes, specific codes, or codes based on products, collections, customer tags, or cart total. The Allow List lets you whitelist approved codes and block everything else. Smart Discounts apply discounts only to full-price items, skipping products already on sale.
- Limit discounts to one eligible item per order, even on percentage discounts
- Auto-block codes when restricted items are in the cart
- Generate thousands of unique codes in bulk, or import via CSV
- One shareable code, usable by unlimited customers until you turn it off
- Block discount codes by product, collection, customer tag, or cart total
- Allow List: whitelist specific codes and block all others at checkout
- Smart Discounts: apply discounts only to full-price items, not sale items
- Custom error messages per rule shown instantly to customers at checkout
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 |  Airtight | |
|---|---|---|
| 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 | Airtight | |
|---|---|---|
| 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 | Airtight | |
|---|---|---|
| Free plan | Yes | Yes |
| Lowest paid monthly plan | $19.99/month | $4.99/month(ahead) |
| Longest free trial | 7 days | 7 days |
| Plans listed | 3 | 4 |
Listing
| Measure | Airtight | |
|---|---|---|
| Shopify category rank | #219 | 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 17, 2026 | Nov 12, 2026 |
| Languages | 1 | 1 |
| Developer | ASP Development | Apps Developer |
FAQ
Airtight and CartShield: common questions
- Is Airtight or CartShield cheaper?
- Both list a free plan. Paid plans start at $19.99/month for Airtight and $4.99/month for CartShield. 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?
- Airtight lists 6 the others don’t mention, such as Bulk discounts, Custom discounts, Import and export, Percentage discounts. CartShield lists 7 the others don’t mention, such as Cart discounts, Coupons, Discount stacking, Filtering. 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 13, 2026 for Airtight, Nov 12, 2026 for CartShield; 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 13, 2026 for Airtight, Nov 12, 2026 for CartShield. 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.