Comparison

Ghost Weight vs MetaboLog

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

Head to head
About

Ghost Weight

Features
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【課金なし!広告なし】Ghost Weightは、基準日からの差分だけを表示する新しい体重管理アプリです! あなたが入力するのは体重計の数字ですが、アプリが表示するのは「基準日からの差分(例:-0.5kg)」だけ。 「〇〇kg」という重い現実(絶対値)は表示されません。 「昨日より減った!」「先週よりこれだけ変わった!」というポジティブな変化だけに集中できるから、モチベーションが途切れず、自然と習慣が続きます。Face ID / Touch IDによる生体認証ロックを標準装備で、友人や家族に画面を見られても、あなたの本当の体重を知ることは不可能です。数字の呪縛から解放され、心軽やかに健康管理を始めましょう。 【主な機能】 ・差分入力: 実際の体重を見ずに記録完了 ・トレンドグラフ: 「0」を基準にした折れ線グラフで成果を可視化 ・スマートカレンダー: 記録漏れを一目で確認 ・完全ローカル保存: データはあなたの端末だけのもの ・安心バックアップ: 機種変更時もデータを引き継ぎ可能 【こんな方におすすめ】 ・体重の数字を見るのが怖くて、現実逃避してしまう方 ・家族やパートナーに絶対に体重を知られたくない方 ・自分を責めずに、自分のペースで身体を整えたい方

About

MetaboLog

Features
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"Full-on dieting is exhausting. But I'd like to be just a little more mindful." Metabolog is a simple weight tracking app for diet and health care — made for exactly that feeling. Log your weight quickly, glance at the graph, and you're done. Easy weight management that fits into your daily health routine. **Your buddy Metabolog Man cheers you on** Every time you log your weight, Metabolog Man has something to say. Lost weight? Gained a little? Hit your goal? Haven't opened the app in a while? He responds differently to each situation, with multiple phrases that appear at random. He never lectures you — he just quietly roots for you. Prefer a cleaner look? Hide him in settings. **Keep the streak going — he gets emotional** Hit a milestone and Metabolog Man has something special to say. We'll leave it at that. **Features** · Quick weight logging (pick any date, so you can catch up on missed days) · See your change from last time and distance from your goal at a glance · Graph view with flexible time ranges (All / 1 Year / 1 Month / 1 Week) · Highlights for max and min weight within the selected period · Special messages at streak milestones · Edit or delete past entries · Set a target weight · Switch between kg and lb · Available in Japanese and English Use it as part of your diet, health care, or daily weight management. **Perfect for you if...** · You want a relaxed way to track diet and health · You can't log every single day, but want to check in occasionally · You just want to see the rough trend, not obsess over details · You prefer relaxed, pressure-free goal-setting · You like health apps that are clean and easy to use All data is stored locally on your device — works offline, no account required. Let's build that "little by little" diet and health care habit together.

Screenshots

Ghost Weight4 screens
MetaboLog4 screens

Verdict

The call

The clearest difference is update cadence: Ghost Weight at daily against MetaboLog's every 2 days. MetaboLog's advantage is iOS requirement (13.0 vs 16.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Ghost Weight ships an update daily, MetaboLog every 2 days. The most recent releases landed on October 24, 2026 and October 5, 2026 respectively.

Scorecard2 real differences · 4 level
Ghost Weight versus MetaboLog: the parameters behind the verdict, then further details
ParameterGhost WeightMetaboLog
PriceFreeFree
Update frequencyDaily — betterEvery 2 days
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size14 MB21 MB
Age rating4+12+
DeveloperShoho KozawaToshimasa Ueki

In-app purchases

None

Ghost Weight

No in-app purchases

None

MetaboLog

No in-app purchases

Questions

Is Ghost Weight free?
Ghost Weight is free to download, with no in-app purchases.
Is MetaboLog free?
MetaboLog is free to download, with no in-app purchases.
Do Ghost Weight or MetaboLog have ads?
Neither Ghost Weight nor MetaboLog shows ads.
Which is updated more often, Ghost Weight or MetaboLog?
Ghost Weight ships an update daily, and MetaboLog every 2 days. Most recently, Ghost Weight was updated on October 24, 2026 and MetaboLog on October 5, 2026.

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