Comparison

HydroRing vs おみず シンプル水分記録

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

Head to head
About

HydroRing

Read full description

Tap once to log a drink and watch your ring fill up. See how much water you've had today at a glance. A simple hydration tracker that's easy to stick with, even on busy days. KEY FEATURES - One-tap logging: set your favorite amounts as buttons, or enter a custom amount - Progress ring: turns gold when you go past your goal - See how much is left to reach today's goal - Choose what you're drinking (water, tea and more) - Confetti and haptics when you hit your goal - Daily streaks and 13 badges to earn - Calendar view of your past days - Weekly chart, average intake, goal days and best streak - Reminder notifications at the times you choose - Daily goal from 500 ml to 5000 ml - Switch between ml and oz - Available in English and Japanese GREAT FOR - Anyone who gets busy and forgets to drink water - Building a daily water habit - Seeing how coffee and tea fit into your day - People who gave up on trackers that ask for too much input - Staying on top of your water intake in hot or dry weather PRIVACY - No account needed - Your logs are stored only on your iPhone or iPad and are never sent to a server - No tracking - To show our other apps, the app reads public App Store information (your logs are never sent) PLEASE NOTE HydroRing is a wellness app for logging everyday drinks. It is not a medical device or a medical app. Please talk to a doctor or other qualified professional about your health.

About

おみず シンプル水分記録

Features
Read full description

おみずは、毎日の水分補給をかんたんに記録できるアプリです。 アカウント登録なし・完全無料ですぐに使い始められます。 ■ ワンタップでかんたん記録 コップやペットボトルのボタンをタップするだけで、すぐに記録完了。 忙しい毎日でもサッと記録できます。 ■ リマインダーで飲み忘れ防止 お好みの間隔で「お水飲んだ?」とやさしく通知。 起床時間と就寝時間に合わせて、あなたの生活リズムにぴったりの通知をお届けします。 ■ 1日の目標量を自動計算 体重を入力すると、あなたに合った1日の水分摂取目標量を自動で計算。 プログレスリングで達成状況がひと目でわかります。 ■ 10種類の飲み物に対応 水、緑茶、麦茶、ほうじ茶、紅茶、コーヒー、牛乳、ジュース、味噌汁、スポーツドリンク。 すべて無料で記録できます。 ■ グラフで振り返り 日別・週別・月別のグラフで水分摂取量の推移を確認。 目標達成日数や連続達成記録もチェックできます。 ■ 20色のテーマカラー くすみカラーのかわいいテーマの中から好きな色を選んで、アプリの雰囲気を自分好みに着せ替えられます。 ■ プライバシーを大切に すべてのデータはお使いの端末にのみ保存されます。サーバーへの送信やアカウント登録は一切ありません。安心してお使いください。 毎日の水分補給を、もっとかんたんに。 ぜひ「おみず」をお試しください。

Screenshots

HydroRing4 screens
おみず シンプル水分記録3 screens

Verdict

The call

The clearest difference is in-app purchases: おみず シンプル水分記録 at none against HydroRing's 1. おみず シンプル水分記録 also leads on update cadence (every 5 days vs every 6 weeks). On price, ads, device support and iOS requirement 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. HydroRing sells 1 one-off in-app purchase. おみず シンプル水分記録 asks for nothing beyond the download.

UpkeepUpdate frequency

HydroRing ships an update every 6 weeks, おみず シンプル水分記録 every 5 days. The most recent releases landed on October 31, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 4 level
HydroRing versus おみず シンプル水分記録: the parameters behind the verdict, then further details
ParameterHydroRingおみず シンプル水分記録
PriceFreeFree
Update frequencyEvery 6 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS16.015.1 — better
Further details — not scored
Size2 MB44 MB
Age rating4+4+
DevelopertorankiriteRyotaro Shimada

In-app purchases

1 purchases

HydroRing

One-time1
  • HydroRing Premium$3.99
None

おみず シンプル水分記録

No in-app purchases

Questions

Is HydroRing free?
HydroRing is free to download, with in-app purchases available.
Is おみず シンプル水分記録 free?
おみず シンプル水分記録 is free to download, with no in-app purchases.
Do HydroRing or おみず シンプル水分記録 have ads?
Neither HydroRing nor おみず シンプル水分記録 shows ads.
Which is updated more often, HydroRing or おみず シンプル水分記録?
HydroRing ships an update every 6 weeks, and おみず シンプル水分記録 every 5 days. Most recently, HydroRing was updated on October 31, 2026 and おみず シンプル水分記録 on November 6, 2026.

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