Comparison

やせるぞう vs Unki

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

Head to head
About

やせるぞう

Features
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やせるぞうは、体重管理・体脂肪率・歩数を、かんたんに続けられるダイエット&歩数計アプリです。 万歩計・歩数計としても使え、ウォーキングや散歩、日々の運動の記録も手軽に管理できます。 ヘルスケア連携にも対応し、歩数データの自動取得が可能です。 カレンダーやグラフで日々の変化を見やすく振り返ることができ、 食事やカロリーのメモ、気分や体調の記録もまとめて確認できます。 かわいいぞうキャラの育成や着せ替えを楽しみながら、無理なく習慣化できます。 ■こんな人におすすめ ・体重をシンプルに記録したい ・ダイエットをやさしく続けたい ・歩数やウォーキング、散歩の記録もまとめて見たい ・万歩計・歩数計アプリを探している ・食事やカロリーを軽くメモしたい ・気分や体調もあわせて記録したい ・トレーニングや運動の記録もゆるく残したい ・難しい機能より、続けやすさを重視したい ■主な機能 ・体重・体脂肪率の記録 ・歩数の確認(万歩計・歩数計として利用可能) ・ウォーキング・散歩・運動・トレーニングの記録 ・ヘルスケア連携による歩数の自動取得 ・カレンダーでの記録一覧表示 ・グラフによる体重・歩数の変化の可視化 ・食事・カロリーのメモ ・気分・体調の記録 ・記録の見返し ・キャラクターの育成・着せ替え ・毎日続けたくなるキャラクター演出 ・見やすくやさしいデザイン やせるぞうと一緒に、今日の一歩を積み重ねていきましょう。

About

Unki

Features
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Unki is a simple bowel movement tracker for everyday personal logging. You do not need to write long notes. Choose the stool shape that feels closest: Pebbly, Normal, Soft, or Watery. Each record is saved with the time, so you can look back later. The Today screen shows your daily count at a glance. The calendar helps you review each day, and the detail view lets you edit the time or delete a record when needed. The Trends screen shows simple summaries, including days with records, days without records, average count, stool shape mix, common time of day, and daily record trends. Unki also supports Apple Watch. You can record from your watch and review the history later on your iPhone. A watch face complication can open the Watch app quickly. Main features: - Quick stool shape logging - Daily bowel movement count - Calendar history - Edit record time - Delete records - Simple trend summaries - Stool shape mix - Common time-of-day view - Apple Watch recording - Watch face complication shortcut Unki is not a medical diagnosis app and does not provide medical advice. Please consult a healthcare professional if you have ongoing symptoms or health concerns.

Screenshots

やせるぞう4 screens
Unki4 screens

Verdict

The call

The clearest difference is iOS requirement: やせるぞう at 15.1 against Unki's 17.0. On price, update cadence, ads 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

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 9, 2026 and October 10, 2026 respectively.

Scorecard1 real difference · 5 level
やせるぞう versus Unki: the parameters behind the verdict, then further details
ParameterやせるぞうUnki
PriceFreeFree
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.1 — better17.0
Further details — not scored
Size29 MB13 MB
Age rating4+4+
DeveloperYuichi KitajimaDaisaku Mori

In-app purchases

None

やせるぞう

No in-app purchases

None

Unki

No in-app purchases

Questions

Is やせるぞう free?
やせるぞう is free to download, with no in-app purchases.
Is Unki free?
Unki is free to download, with no in-app purchases.
Do やせるぞう or Unki have ads?
Neither やせるぞう nor Unki shows ads.
Which is updated more often, やせるぞう or Unki?
やせるぞう ships an update weekly, and Unki weekly. Most recently, やせるぞう was updated on October 9, 2026 and Unki on October 10, 2026.

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