Updated Sep 16, 2026
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Apps ranking for “best weight loss app”
Japan App Store · live results
Difficulty
Hard
52/100
Apps competing
195
in search results
Avg top-10 rating
4.37
22,563 avg reviews
Free in top 10
10/10
paid vs free mix
-
1
ウェイトロス フィットネスMONTIBUS LTD · Health & Fitness★ 4.225,563 ratingsFree -
2
シンプルダイエット 体重記録をグラフ、カレンダーで管理できるi-mobile Co.,Ltd · Health & Fitness★ 4.5423,698 ratingsFree -
3
Kompanion: 断食トラッカー & 体 重 管 理Ornitorenk Dijital Hizmetler Anonim Sirketi · Health & Fitness★ 4.273,126 ratingsFree -
4
Simple: AIを活用したダイエットコーチAM APPS · Health & Fitness★ 4.35638 ratingsFree -
5
30日ダイエット：女性向け自宅トレABISHKKING LIMITED. · Health & Fitness★ 4.373,505 ratingsFree -
6
体重管理アプリSmartRecord ：ダイエット・筋トレKomorebi Inc. · Health & Fitness★ 4.523,443 ratingsFree -
7
MyFitnessPal: 健康管理MyFitnessPal, Inc. · Health & Fitness★ 4.4830,272 ratingsFree -
8
Noom Weight Loss, Food TrackerNoom, Inc. · Health & Fitness★ 3.795,019 ratingsFree -
9
SmartDiet ダイエットの体重記録で痩せるダイエットKomorebi Inc. · Health & Fitness★ 4.6130,193 ratingsFree -
10
自宅でできる男性向け減量アプリLeap Health · Health & Fitness★ 4.6181 ratingsFree -
11
Lose It! – Calorie CounterFitNow · Health & Fitness★ 4.5809 ratingsFree -
12
Dancefitme: 楽しいトレーニングTechPioneers Limited · Health & Fitness★ 4.332,506 ratingsFree -
13
Fastic Weight Loss & FastingHealthVida GmbH & Co. KG. · Health & Fitness★ 4.76543 ratingsFree -
14
BMI計算と体重日記 - aktiBMIaktiWir GmbH · Health & Fitness★ 4.411,025 ratingsFree -
15
ボディマス指数計算機 - 体重管理Steffen Mayer · Health & Fitness★ 4.47206 ratingsFree -
16
RecStyle カロリー管理と体重記録のダイエット アプリMEDIANO Co.,Ltd. · Health & Fitness★ 4.527,239 ratingsFree -
17
Weight Loss 体重記録が続く、痩せるダイエット記録Sttir, Inc. · Health & Fitness★ 4.27677 ratingsFree -
18
Walker - 歩数計 LiteNaoya Araki · Health & Fitness★ 4.1510,636 ratingsFree -
19
マイ・ダイエット・コーチ : 栄養価計算Mosaic S.r.l. · Health & Fitness★ 4.6425 ratingsFree -
20
Cal AI - Calorie TrackerViral Development LLC · Health & Fitness★ 4.661,024 ratingsFree -
21
姫様「体重記録」かわいいキャラと一緒にダイエットmitsuhiro nara · Medical★ 4.323,696 ratingsFree -
22
Fitness: 筋肉, フィットネス & 筋トレアプリFITNESS ONLINE MChJ · Health & Fitness★ 4.673,474 ratingsFree -
23
Sworkit Fitness & Workout AppNexercise · Health & Fitness★ 4.342,259 ratingsFree -
24
FYSTA（フィスタ）筋トレ・ヨガ・体重管理・フィットネスKINGSOFT Japan Inc. · Health & Fitness★ 4.31,751 ratingsFree -
25
Walker - 歩数計 with MotionNaoya Araki · Health & Fitness★ 4.2511,231 ratingsFree
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