---
title: "mendi.io Promo Codes"
description: "Promo Codes at mendi.io. Check for offers and shopping options on Refermate."
canonical_url: "https://refermate.com/store/mendi-io/promo-codes"
md_url: "https://refermate.com/store/mendi-io/promo-codes"
last_updated: "2026-09-22T09:11:48.221Z"
---
# mendi.io Promo Codes - 20% Off + Up to 8.4% Cash Back

- URL: https://refermate.com/store/mendi-io/promo-codes
- Page: Promo Codes
- Store: mendi.io
- Featured current offer: 20% Off
- Current offers: 15 offers
- Store website: https://www.mendi.io
- Last refreshed: Tuesday, September 22, 2026

## Current Offers

### 1. 20% OFF
Type: Coupon code
Code: `BRAIN20`
Description: Get 20% Off Sitewide

### 2. 20% OFF
Type: Coupon code
Code: `JOSH20`
Description: Enter this Mendi coupon code to get 20% off on your storewide orders.

### 3. 15% OFF
Type: Coupon code
Code: `BRAIN15`
Description: Get 15% Off Any Order

### 4. 20% OFF
Type: Coupon code
Code: `FD23`
Description: Get 20% off on your storewide orders when you enter this Mendi coupon code.

### 5. 20% OFF
Type: Coupon code
Code: `ADHD20`
Description: Enter this Mendi coupon code to get 20% off across the entire site.

### 6. BRAIN20BRAIN20
Type: Coupon code
Code: `BRAIN20BRAIN20`

### 7. 20% off
Type: Coupon code
Code: `mendiwithdrcody`
Description: 20% Off Storewide at Mendi. io

### 8. 20% off
Type: Coupon code
Code: `COURTNEY20`
Description: 20% Off Storewide at Mendi. io

### 9. 15% off
Type: Coupon code
Code: `DRSTORAGE`
Description: 15% Off Storewide at Mendi. io

## About mendi.io

mendi.io sells a neurofeedback brain-training headset for customers in the United States, along with a companion app that guides mental fitness sessions to support focus, calm, and cognitive performance.

## Frequently Asked Questions

### 1. How many mendi.io promo codes are available right now?
mendi.io currently has 15 current offers listed. Availability and terms can change, so check the offer details before checkout.

### 2. What is a current featured offer at mendi.io?
One current featured mendi.io offer is "20% Off". Availability and terms can change, so review the offer details before checkout.

### 3. Does mendi.io offer cash back?
Yes, you can earn up to 8.4% cash back on eligible mendi.io purchases through Refermate. The offer and cash back terms determine whether a promo code can be combined with it.

### 4. How do I use a promo code at mendi.io?
When a code is listed, copy it from this page, add your items to your mendi.io cart, and paste the code in the promo code field at checkout. Check the offer terms to confirm the discount applies.

### 5. When was this mendi.io promo codes page updated?
Refermate updates this page when its mendi.io offer or store data changes. Check the current offer details before shopping.

## Explore More

- Site map: https://refermate.com/sitemap.md
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