Auto-add anything at checkout
Warranties, insurance, handling fees, free gifts — added automatically based on conditions. No code. Works on all plans.
Free plan available — no credit card required · See pricing
Up and running in 3 minutes
Install from Shopify
One click from the Shopify App Store. No theme edits, no code required.
Pick a rule type
Choose from checkout add-ons, order protection, shipping control, or payment control.
Set conditions & go live
Use ready-made templates or build custom rules with AND/OR logic. Test in sandbox mode first, then activate.
Everything happens at checkout
Any product in your store becomes a checkout add-on. Set the condition, pick the product, done.
Checkout Add-ons Pro
Auto-add warranties, insurance, fees, gift wrap, or free gifts — any product, any condition, automatically at checkout. Requires the Pro plan.
Order Protection
Block invalid pincodes, PO boxes, age-restricted products, and risky combinations — before they complete. Supports B2B detection, AND/OR conditions, and multi-language addresses.
Payment & Delivery
Hide, rename, or reorder shipping and payment methods based on cart rules. No code, no theme edits. Test rules in sandbox mode before going live.
0+
Active Stores
5.0 ★
App Store Rating
Free
Plan to get started
Ready-made templates
Install in one click — no setup from scratch.
Handling Fee on Every Order
Automatically add a flat handling fee product to every checkout. Recover fulfilment costs without editing prices.
Frequently Bought Together
Auto-add two complementary products when a trigger tag is in the cart. Mirrors the Amazon FBT experience at checkout.
Warranty Upsell
Add a warranty product to the cart when a specific product tag is detected. Priced separately or bundled.
Block PO Box Delivery
Prevent orders shipping to PO boxes or military addresses. Supports multi-language address detection automatically.
Hide Shipping for B2B
Automatically hide paid shipping methods for verified B2B customers, showing only free or negotiated options.
Block High-Risk Pincodes
Prevent checkout for a list of undeliverable or high-fraud postal codes. Show a custom error message to the customer.
Start free. Upgrade when you're ready.
- Order Protection
- Delivery Control
- Payment Control
- Ready-made Templates
- Standard Support
- Order Protection
- Delivery Control
- Payment Control
- Ready-made Templates
- Standard Support
Common questions
Does it work on all Shopify plans?
What does the free plan actually include?
Is there a free trial on the Pro plan?
Does it require theme edits or custom code?
Can I test a rule before it goes live?
5★ from every merchant
"I can't tell you how much this app has solved a problem instantly. Saved me a lot of money — most developers were asking me to pay for a more expensive plan. Bharat was very helpful."
HAWTHONS — United Kingdom
"We compared it with five other checkout apps — either they didn't work properly or required payment even for the smallest tweak. Tweakday clearly stood out. Even the free version offers features others charge for."
Ayoub — Kingspan Light + Air — Belgium
"I had been looking for a simple checkout validation app for ages — tried many, but they either didn't function well or required more expensive plans. So happy to find Tweakday. UI is super simple and intuitive."
House of Habanero — UAE
"Very user-friendly app that absolutely fulfils its purpose. We highly recommend it."
Carrera — Austria
"Bharat has been great giving me support. Even went the extra mile and created a new feature aligned to my store's needs."
Proven Part — United States
Ready to add more to every order?
Free plan available. 7-day trial on Pro. No credit card required.
Install on Shopify — It's Free