Tweakday Checkout

Name: Tweakday Checkout
Brand: Tweakday
Rating: 5.0 (3 reviews)

Pricing: Free plan available
Rating: 5.0 (3)
Developer: Tweakday

Create checkout rules using line item rules and validation

Create smart checkout rules by modifying cart line items and validating checkout — no code.

Tweakday Checkout helps Shopify merchants create powerful checkout rules using line item logic and checkout validation. Automatically modify cart items by adding free gifts, warranties, or insurance, and control pricing at the line-item level. Prevent invalid orders by blocking checkout when cart, product, customer, or address conditions are not met. Show clear error messages before order placement. Built with Shopify Functions for fast, secure performance without coding.

Create rules to add, remove, or modify cart line items dynamically.
Block checkout instantly when order conditions are not satisfied.
Show clear error messages before customers place an order.
Use cart, product, customer, and address-based conditions.
Powered by Shopify Functions for secure, high-speed checkout.

Languages

English, French, Spanish, Portuguese (Brazil), Chinese (Simplified), and German

Works with

Checkout
Shopify Admin

Pricing

Free Plan

Free

5 Rules: Validation, Shipping & Payment
Basic checkout control
Custom Templates
Standard Support

Pro Plan

$24.99 / month

or $248.90/year and save 17%

Line Item Rules (multiple rules)
25 Validation, Shipping & Payment Rules
Advanced Checkout Logic
Custom Templates
Priority Support

All charges are billed in USD. Recurring and usage-based charges are billed every 30 days.

Reviews (3)

Overall rating

Counts per rating level

100% of ratings are 5 stars
3
0% of ratings are 4 stars
0% of ratings are 3 stars
0% of ratings are 2 stars
0% of ratings are 1 stars

All reviews

September 16, 2025

Tweakday Checkout has a very clear and intuitive UI. Within just a few minutes we were able to set up checkout rules, adjust the order of payment methods, and even customize the names of payment methods. These are features that Shopify does not provide out of the box, but this app makes them possible, even in the free version.

We compared it with five other checkout rules apps, but either they did not work properly or they required payment even for the smallest tweak. Tweakday clearly stood out.

Ayoub
Kingspan Light + Air

Kingspan store België | Branddetectie | Kingspan Light + Air Belgium nv

Belgium

5 months using the app

Tweakday replied September 16, 2025

Thank you so much, Ayoub! 🌟 We’re glad to hear Tweakday Checkout made it easy for you to set up rules and customize your checkout experience. Your feedback about standing out from other apps means a lot to us, and we’ll keep working hard to deliver even more powerful features while keeping things simple and accessible. 🚀

— The Tweakday Team

September 25, 2025

Very user-friendly app that absolutely fulfills its purpose. We highly recommend it.

Carrera

Austria

About 2 months using the app

Tweakday replied September 26, 2025

Thank you so much for your kind words and recommendation! 🌟
We’re glad to hear Tweakday Checkout is helping you achieve your goals. Your feedback motivates us to keep improving and adding more features to make checkout even smoother. 🚀

May 23, 2025

I had been looking for a simple checkout validation app to display an error message on specific checkout fields for certain countries for ages..tried many, but they either didnt function well or required Shopify Plus accounts.

I was so happy to find Tweakday Checkout! I had a small issue with display on my theme, but support (from Baharat) was fantastic, and their UI is super simple and intuitive to use.

Definitely recommend this app for simple checkout validations and rename/hide/reorder for payments & delivery fields.

Thank you guys!

House of Habanero

United Arab Emirates

About 18 hours using the app

Tweakday replied May 25, 2025

Thank you so much! We're really glad Tweakday Checkout worked out for you. Appreciate the kind words and recommendation — we're here if you ever need anything! 😊