Shopify integration hub
Theme App Extensions integration apps for Shopify
8 apps state on their Shopify listing that they work with Theme App Extensions. Grouped by category, ranked by the public formula. Developer spellings that resolved here: Theme App Extensions, Theme app extensions.
Theme App Extensions is itself on the Shopify App Store: Theme Blocks Plus.
Apps naming it
8
Categories
10
Reviews across them
9
With a free plan
6
Cart customization: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  Upsell Cart Drawer—ShopCartBoost your sales with slide cart upsell widgets and add-ons | 5.0(3) | 3 | 3 | Free plan | Yes | none | No | 2026 | Cart discount functions, OpenAI, Post Purchase Upsell—ReSell +2 | New |
Upsell and cross-sell: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Upsell Cart Drawer—ShopCartBoost your sales with slide cart upsell widgets and add-ons | 5.0(3) | 3 | 3 | Free plan | Yes | none | No | 2026 | Cart discount functions, OpenAI, Post Purchase Upsell—ReSell +2 | New |
Design elements - Other: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  ShabbifyAutomated store closing and reopening for Shabbat and holidays | 5.0(3) | 3 | 3 | Free plan | Yes | none | No | 2026 | Theme App Extensions | New |
Pricing - Other: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  Ests Tax/Vat SwitcherDisplay Prices Including Or Excluding VAT/TAX On Your Store | 1.0(2) | 2 | 0 | $4.99/month | No | 7 days | No | 2024 | Checkout Cart Pages, Custom Themes, Online Store 2.0 +2 | New |
Warranties and insurance: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  InsureBooster Order ProtectionSelf-funded order protection. Keep 100% of the fees. | 5.0(1) | 1 | 0 | $9.99/month | Yes | 14 days | No | 2024 | Cart Drawer, Checkout Extensibility, Claims automation +3 | New |
Returns and warranty - Other: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | InsureBooster Order ProtectionSelf-funded order protection. Keep 100% of the fees. | 5.0(1) | 1 | 0 | $9.99/month | Yes | 14 days | No | 2024 | Cart Drawer, Checkout Extensibility, Claims automation +3 | New |
Shipping solutions - Other: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  BP Estimated Delivery Date ProShow geo-targeted estimated delivery dates and arrival ETA. | No ratings yet | 0 | n/a | $7.99/month | Yes | 3 days | No | 2026 | Theme App Extensions | New |
SEO: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  SikSmart: AI Search OptimizerOptimize products for AI search and LLM assistants | No ratings yet | 0 | n/a | $9.99/month | Yes | none | No | 2026 | App Proxy, Billing, Claude +3 | New |
Content - Other: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  Voiceify: Text To SpeechAI audio player with text-to-speech and audio import tools | No ratings yet | 0 | n/a | $5/one-time charge | Yes | none | No | 2026 | Blog Articles, Online Store 2.0, Storefront Themes +1 | New |
Collections: 1 app
| # | App | Rating | Reviews | Last 180 days | From | Free plan | Trial | Built for Shopify | Launched | Integrations | Tier |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  YMM Fitment AI: Parts SearchYear Make Model fitment search with My Garage & badges | No ratings yet | 0 | n/a | $9.99/month | No | 7 days | No | 2025 | Online Store 2.0 App Blocks, Product CSV Import/Export, Storefront API +1 | New |
Integrations that co-occur
Other tools named on the same listings as Theme App Extensions.
- OpenAI 2
- Online Store 2.0 2
- Cart discount functions 1
- Post Purchase Upsell—ReSell 1
- Product Recommendations API 1
- Checkout Cart Pages 1
- Custom Themes 1
- Standard or paid themes 1
- Cart Drawer 1
- Checkout Extensibility 1
Last updated Oct 22, 2026. Ratings and review counts are the values shown on each app's public listing. How the numbers are computed: methodology.