Coupon Math app iconComing soon to iPhone

Every deal has
a little math.

A free iPhone app that helps you plan your coupon trips. Browse this week's deals, split them into transactions, and see your estimated total and rewards before you shop.

At this time, Coupon Math will launch on iPhone only.
Coupon Math planner screenCoupon Math deals screen

A sneak peek of Coupon Math

Everything you need to plan your trip, in one place.
Coupon Math deals screenCoupon Math planner screenCoupon Math custom deal screen
Hannah Vina

Hi, I'm Hannah

Creator of Coupon Math
Coupon Trip Planner fillable PDF
PRINTABLES

Coupon Trip Planner

Prefer planning on paper or in a PDF? Plan every transaction with this fillable trip planner.

  • ✓Totals add up automatically
  • ✓Check off items as you shop
  • ✓1, 2, 3 and 4 transaction versions
Get the planner
Instant download · Fillable PDF
PERSONAL HELP

Trip Check

Planned your coupon trip? Email it to me and I'll check it before you shop.

  • ✓A second look at your transactions
  • ✓Catch mistakes before you shop
  • ✓Personal feedback within 48 hours
Check my trip
Notes app, document or handwritten list
Trip Check by Hannah Vina
WHERE IT STARTED

Extra Cart

May 8, 2026 – Sept. 13, 2026

Coupon Math started as Extra Cart, a webpage I made to make coupon planning easier. I've now converted it into an app with bigger and better features!

Extra Cart
Link copied!
Coupon Math app icon

Coupon Math

Every deal has a little math.

A free iPhone app that helps you plan your coupon trips. Browse this week's deals, split them into transactions, and see your estimated total and rewards before you shop.

Coming soon to iPhone
Hannah Vina
Hi, I'm Hannah
Creator of Coupon Math
A sneak peek of Coupon Math
Swipe to see more →
Coupon Math deals screen Coupon Math planner screen Coupon Math custom deal screen
At this time, Coupon Math will launch on iPhone only.
PRINTABLES

Coupon Trip Planner

Coupon Trip Planner fillable PDF

Prefer planning on paper or in a PDF? A fillable trip planner with automatic totals, check-off boxes and a trip summary. Includes 1, 2, 3 and 4 transaction versions.

Get the planner
Instant download · Fillable PDF
PERSONAL HELP

Trip Check

Trip Check by Hannah Vina

Planned your coupon trip? Email it to me and I'll check your transactions, coupon stacking and rewards before you shop. Feedback within 48 hours.

Check my trip
Notes app, document or handwritten list
WHERE IT STARTED

Extra Cart

May 8, 2026 – Sept. 13, 2026

Coupon Math started as Extra Cart, a webpage I made to make coupon planning easier. I've now converted it into an app with bigger and better features!

Extra Cart