Comparison

Body Progress vs やせもん

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

Head to head
About

Body Progress

Features
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Stop letting the scale dictate your happiness. Have you ever felt discouraged because the numbers on the scale didn’t budge, even though you’ve been working hard on your diet and fitness? Your body is changing—guaranteed. But those subtle transformations are impossible to see if you’re only chasing numbers. MirrorLog is a body transformation tracker designed to "visualize" your small wins and keep your motivation at an all-time high. 【5 Reasons to Choose MirrorLog】 1. Sync Photos with Your Stats Save your weight and body photos as a single record. Easily understand the correlation between your weight and your physical tightening that a simple graph can't show. 2. Feel the Change with "Comparison" Compare your past and present self with a single tap. Side-by-side or layered—see the difference instantly. "Wow, my waist really is slimmer!" That realization becomes your fuel for tomorrow. The sense of achievement you can't get from numbers alone will support your journey. 3. Smart Input with Apple Health Sync with the Apple Health app to make weight logging effortless. Let the app handle the boring data so you can focus on the exciting part: tracking your visual transformation. 4. Your Private, Secure Vault Body photos are deeply personal. Photos saved in MirrorLog are stored securely within the app and will never appear in your iPhone’s standard "Photos" library. We protect your privacy at all costs. 5. Share Your Progress in Style Turn your "I did it!" moments into stylish comparison images for social media. Supports both the classic "Side-by-Side" and the dramatic "Slider Overlay" (Premium Feature). Your hard work might just be someone else's inspiration. 【MirrorLog is perfect for:】 * Anyone tired of being frustrated by the numbers on the scale. * Fitness enthusiasts who want to track muscle definition and tone. * Postpartum moms or those tracking posture improvements. * People who don't want body photos cluttering their main Photo library. * Anyone looking for a simple, beautiful, yet powerful tracking tool. "Falling in love with the mirror again." Managing your body is a journey to loving yourself more. When you notice that 1-millimeter change from yesterday, dieting stops being a "chore" and starts being "fun." Download MirrorLog now and start recording your ultimate transformation! Note: Some features, such as the "Slider Overlay," require a premium subscription. The images used in screenshots are AI-generated and do not represent real individuals. Privacy Policy: https://sly-pudding-816.notion.site/Privacy-Policy-MirrorLog-30ad3730639f805c9581d5040a30a12e Terms of Use: https://sly-pudding-816.notion.site/Term-of-Use-MirrorLog-30ad3730639f80b5a16fd06cd878b502

About

やせもん

Features
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「やせもん」は、ダイエットの記録とキャラクター育成を組み合わせた、続けられるダイエットアプリです。 毎日の食事・体重・歩数を記録するほど、あなたの相棒キャラクターが育って進化していきます。がんばりが目に見えるから、三日坊主になりにくい。楽しみながら、自然と健康習慣が身につきます。 ■ かんたん記録 ・食事はカロリーとPFC(たんぱく質・脂質・炭水化物)を自動で計算 ・体重の推移をグラフで確認 ・歩数は自動で取得し、消費カロリーの目安を表示 ■ 育てる楽しさ ・記録を続けると相棒が「幼年期→成長」と進化 ・パンダ・うさぎ・ねこ・ドラゴン・ペガサス・ペンギン・クジラから相棒を選べる ・すべてのキャラはドット絵で手描き ■ AIコーチ(プレミアム) ・あなたの体重の推移・カロリー・歩数・連続日数を見て、毎日コメント ・「やさしい」「きびしい」から口調を選択 ・朝・昼・夜の1日3回、自動で応援 ■ ともだち機能 ・育てたキャラクターを、ともだちのアプリに遊びに行かせられるオンライン連携 ・QRコードでかんたんに友だち追加 無理なく、楽しく。相棒と一緒に、今日から始めましょう。 ※本アプリは医療・診断を目的としたものではありません。 【利用規約・プライバシーポリシー】 ・利用規約(EULA):https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ ・プライバシーポリシー:https://yasemon-ca15b.web.app/privacy-policy ■ プレミアム(月額・自動更新サブスクリプション) ・期間:1か月(解約しない限り自動更新) ・料金:¥400/月(価格は地域により異なります) ・購読の管理・解約はApp Storeのアカウント設定からいつでも行えます。

Screenshots

Body Progress4 screens
やせもん4 screens

Verdict

The call

The clearest difference is update cadence: やせもん at every 2 days against Body Progress's weekly. やせもん also leads on iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support 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. Body Progress sells 4 in-app purchases, starting at $0.99 per 7 days and やせもん sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Body Progress ships an update weekly, やせもん every 2 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 4 level
Body Progress versus やせもん: the parameters behind the verdict, then further details
ParameterBody Progressやせもん
PriceFreeFree
Update frequencyWeeklyEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size20 MB56 MB
Age rating4+4+
DeveloperTakatoshi IchigeKAZUYA MATSUMOTO

In-app purchases

4 purchases

Body Progress

Subscriptions3
  • Premium Weekly$0.997 Days
  • Premium Monthly$2.991 Month
  • Premium Yearly (Best Value)$19.991 Year
One-time1
  • Premium Lifetime Access$39.99
1 purchases

やせもん

Subscriptions1
  • プレミアム(月額)$1.991 Month

Questions

Is Body Progress free?
Body Progress is free to download, with in-app purchases available.
Is やせもん free?
やせもん is free to download, with in-app purchases available.
Do Body Progress or やせもん have ads?
Neither Body Progress nor やせもん shows ads.
Which is updated more often, Body Progress or やせもん?
Body Progress ships an update weekly, and やせもん every 2 days. Most recently, Body Progress was updated on October 31, 2026 and やせもん on October 31, 2026.

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