iPhone Screenshots


With mymizu, you never have to buy bottled water again - it’s good for your wallet, your body, and the planet :)

Now you can track your impact, including the single-use plastic bottles, CO2 and money you've saved by refilling.

Using mymizu, you can:
1. Find your nearest water refill spot
2. Add new refill spots to help even more people refill
3. Track your impact, including number of bottles saved and CO2 reductions
4. Unlock fun facts and graphics to share with your friends!

Our refill spots include both public water fountains and partner businesses such as cafes, shops and hotels where you can refill for free - many even have a mymizu sticker on display ;)

Many of our users contribute to the movement by adding new refill spots they discover or encouraging their favourite shops and cafes to sign up, contributing to our global database of almost 200,000 refill spots.

You can add new public refill spots via the "add refill spot" function.
You can also encourage your favourite cafe, shop or hotel to sign up on the platform, to help even more people refill and eliminate single-use plastic.

Cafes, shops and other businesses on the mymizu platform receive the following benefits (signing up is free!):
1. Increased foot traffic.
2. Enhanced branding through good corporate citizenship.
3. Strengthened community relations, by playing an active role in making their local area more eco-friendly and liveable.

At mymizu, we believe that small actions can lead to a big impact, if we all join in together! That's why we'd love for you to join us as we take on the #PlasticsCrisis - one bottle at a time.

Our first major milestone is to track the elimination of 1 MILLION bottles by the end of Summer 2020. So start tracking those refills and let's do this together! Here's to a world with less plastic and more fun :)

** Let us know what you think! In July 2019, a small group of passionate volunteers started to build this app. We've learnt so much from our users, and would really appreciate your feedback (which you can submit via the in-app menu) so that we can up our game and create an even better service going forward **

What’s New

Version 2.1.0

You asked, we delivered!! Many of you shared that you would like to be able to set a custom bottle size in our refill tracker, so we did! Now, even if your bottle’s capacity is 473ml (like the mymizu bottles on our online store!) you can set its exact size via the “Edit My Profile” page!

We made a few other changes too, including:
1. Updating our login screens to make it a little easier to navigate
2. Squishing a few bugs (digital ones only - no real bugs were harmed in this update)

mymizu is truly a co-created platform and we take your feedback seriously, so please keep it coming!

Ratings and Reviews

5.0 out of 5
14 Ratings

14 Ratings

Me-Sama ,

Convinient, easy to use, and a good cause

This is so useful because I don’t have to buy bottled water anymore! I used to buy from the vending machine even if I had a reusable water bottle with me because I would eventually run out of water. I didn’t know where to refill my bottle but this app solves that issue. I also really like how it creates a sense of a community, especially when you see stores sign up to be a part of this.

Tsfhdsgjd ,


So convenient in Tokyo when I need more water. It’s also helping the planet!

App Privacy

The developer, Social Innovation Japan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Linked to You

The following data may be collected and linked to your identity:

  • Contact Info
  • User Content
  • Identifiers

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


26.8 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

You May Also Like