Skip to content
MerchantPick
Tweakday: Auto Add‑ons & Fees icon

Tweakday: Auto Add‑ons & Fees

Checkout add-ons, fees and rules that work on all store...

by Tweakday · Launched: April 2024 · Free plan available.

5.0 (5) on Shopify
Manage this app

Verify your developer profile to earn a badge and build trust for your app.

Auto-attach fees, warranties & free gifts to specific products at checkout. Per item. Quantity scales. No code. No Plus needed. Free plan available.

Get it on Shopify →

About Tweakday: Auto Add‑ons & Fees

Tweakday auto-attaches fees, warranties, insurance, and free gifts to specific products at checkout — based on rules you set. Sell a phone, a warranty attaches. Sell a fragile item, a handling fee adds. Per item, not per order. Quantity scales automatically. Multiple add-ons per product. Update bundle title and image at checkout. No widgets. No theme edits. No Shopify Plus needed. Free or paid add-ons. Auto-creates virtual products for insurance or warranties — no manual setup.

Last verified: August 9, 2026 · Fresh

App details

Developer
Tweakday
Pricing
Free plan available
Launched
April 2024
Rating
5.0 (5) on Shopify

Key features

  • Order Protection
  • Delivery Control
  • Payment Control
  • Ready-made Templates
  • Standard Support
Integrations with:

Checkout Shopify Admin

2 plans · starts free · 7-day free trial

Free Plan

Free

Pro Plan

$24.99/month

Plans and prices as listed on the Shopify App Store.

Ratings & reviews

based on 8 Shopify App Store reviews

Use the arrows to read individual reviews

I cant tell you how much this app has solved a problem i had instantly. Saved me alot of money as well. Most developers were asking me to pay for shopify plus. Bharat was very helpful and instantly solved the issue i had in my checkout. I really appreciate and highly recommend the app.
— HAWTHONS
Bharat has been great giving me support on setting this app. Even went extra mile and create new feature that would align to my store needs.
— Proven Part
Very user-friendly app that absolutely fulfills its purpose. We highly recommend it.
— Carrera
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 di...
— Kingspan store België | Branddetectie | Kingspan Light + Air Belgium nv
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...
— House of Habanero
Great app for customizing Shopify checkouts with multiple conditions available
— Mysmallbusiness SuperStore
The app's UI is clean and user-friendly. I used the Delivery Customization feature and was able to easily manage my shipping with multiple options. It’s a great tool for streamlining the checkout process!
— Frozeo
Great app! Works perfectly, and the support team is super quick to respond. Highly recommend
— Urush

Overview 1 / 8

You might also like

Alternatives to Tweakday: Auto Add‑ons & Fees →

Are you an app developer?

Get your app in front of the merchants browsing this directory.

Explore the developer pages