Comparison

mymizu vs Kagiru

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

mymizu

Discover nearby water refill stations to reduce plastic waste. Track your environmental impact, monitor daily water intake, and contribute to a global database of refill locations. Share your progress and fun facts with friends.

Highlights
  • Find water refill spots
  • Add new refill locations
  • Track plastic bottle savings
  • Track CO2 and money saved
  • Monitor daily water intake
  • Set hydration goals
  • Unlock fun facts and graphics
Features
Read full description

Using mymizu, you can: 1. Find your nearest water refill spot 2. Add new refill spots and help even more people refill 3. Track your impact, including number of plastic bottles, CO2 and money saved 4. Track your daily water intake and set hydration goals 5. Unlock fun facts and graphics to share with your friends! Our refill spots include both public water fountains and refill partners such as cafes, shops and hotels where you can refill for free - many have a mymizu sticker on display. You can contribute to the movement by adding new public refill spots you discover, adding to our global database of over 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 for free, 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 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. So start tracking those refills and let's do this together!! Here's to a world with less plastic and more fun :)

About

Kagiru

Features
Read full description

Kagiru is your strength-training companion. Log every set, rep, and weight, track your progress, and turn each session into real motivation. Build your own routines, train at your own pace, and let Kagiru keep score for you. Every workout earns XP, raises your level, protects your streak, and unlocks badges. Seeing your progress has never felt this good. FEATURES - Log sets, reps, and weights quickly and easily - Create and organize your own workout routines - Personal records (PRs) detected automatically - XP, levels, streaks, and badges to keep you hooked - Progress charts to visualize your evolution - Rest timer between sets - Reminders so you never lose your streak - Widgets and Live Activity to follow your session from the Home Screen - Optional Apple Health sync - Available in English and Spanish PRIVACY FIRST Your workout data is stored entirely on your device. No accounts, no servers. Your progress is yours. Start today, lift more, and push your limits with Kagiru.

Screenshots

mymizu4 screens
Kagiru4 screens

Verdict

The call

The clearest difference is ads: mymizu at none against Kagiru's shown. mymizu also leads on device support (3 vs 1) and iOS requirement (15.1 vs 26.1). Kagiru's advantage is update cadence (every 5 days vs every 2 months). On price and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

mymizu ships an update every 2 months, Kagiru every 5 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
mymizu versus Kagiru: the parameters behind the verdict, then further details
ParametermymizuKagiru
PriceFreeFree
Rating4.7 (19 ratings) — better—
Positive reviews43.3% of reviews—
Number of ratings19 — better—
Update frequencyEvery 2 monthsEvery 5 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better26.1
Further details — not scored
Size53 MB16 MB
Age rating4+4+
DeveloperSOCIAL INNOVATION JAPAN, GENERAL INC. ASSOCIATIONHORACIO GARZA

In-app purchases

None

mymizu

No in-app purchases

None

Kagiru

No in-app purchases

Questions

Is mymizu free?
mymizu is free to download, with no in-app purchases.
Is Kagiru free?
Kagiru is free to download, with no in-app purchases.
Do mymizu or Kagiru have ads?
Kagiru shows ads; mymizu does not.
Which is updated more often, mymizu or Kagiru?
mymizu ships an update every 2 months, and Kagiru every 5 days. Most recently, mymizu was updated on November 7, 2026 and Kagiru on October 31, 2026.

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