Comparison

LightYet vs ボディログ

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

Head to head
About

LightYet

Features
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TRACK WEIGHT. FOLLOW BODY FAT. LOG FOOD FASTER. LightYet helps you keep weight, body fat, meals, calorie estimates, and progress photos in one private diary. Take a food photo or describe what you ate, review the AI-estimated calories, and edit your meal record before saving. No account is required. No ads or third-party analytics. WEIGHT & BODY-FAT TRACKER - Log weight in kg or lb - Record body-fat percentage and personal notes - Follow 7-day, 30-day, and 90-day trends - Use moving averages to understand the broader trend - Estimate progress toward your target weight - Check BMI using international and regional reference standards - Import weight, body fat, and height from Apple Health - Write new LightYet records to Apple Health when enabled AI MEAL SUPPORT - Take a photo of a meal or describe what you ate by text or voice - Get an AI estimate of the foods, portions, and calories - Ask about ingredients, portions, combinations, preparation, or eating out - Review and edit the estimate before saving it to your meal diary - Add or edit meals manually whenever you prefer AI NUTRITION PLAN Answer 10 questions about your goals, schedule, food preferences, activity, and challenges. LightYet creates a flexible 7- or 15-day nutrition plan with an estimated daily calorie target, meal guidance, food examples, calorie ranges, and photo tips. Follow the plan at your own pace, ask about a meal, and adjust it to real life. AI WELLNESS Q&A & BODY-TREND REVIEW Ask practical questions about food, calories, training, recovery, weight, or body-fat trends. LightYet uses the context you choose to share to provide a focused answer and useful follow-up questions. Bring recent meal records together with your 7-day and 30-day weight trends. Get a clear summary and one practical next step instead of reacting to a single meal or weigh-in. VISUAL PROGRESS DIARY Add progress photos, browse your timeline, and compare two dates side by side. See changes that the scale may not show clearly. MORE WAYS TO STAY CONSISTENT - Build a daily logging streak and unlock achievements - Set daily reminders when you want a gentle nudge - Read a built-in nutrition science guide - View weight, calorie, body-fat, goal, streak, dashboard, and calendar summaries with Home Screen widgets - Export or import weight data as CSV and archive progress photos when needed LIGHTYET PRO Unlock every day in your 7- or 15-day nutrition plan, expanded AI meal support and wellness guidance, unlimited progress photos, optional iCloud sync, and additional widgets for body fat, calories, dashboards, and the weight calendar. Monthly, yearly, and lifetime purchase options may be available in your region. PRIVACY WITH CLEAR CHOICES Your core records and progress photos remain under your control. LightYet does not require an account and contains no advertising or third-party analytics SDKs. Non-AI records are stored on your device. If you enable iCloud sync, supported data is stored in your private iCloud container. AI features are optional. Only after you agree and request an AI feature, selected information needed for that request may be sent to LightYet's AI processing service. Depending on the feature, this may include a meal photo or description, your question, and relevant profile, weight, body-fat, or calorie summaries. Progress photos are not included in AI body trend reviews. AI estimates can be inaccurate and should be reviewed before saving. Nutrition targets are planning estimates, not medical prescriptions. LightYet is not a medical device and does not replace professional medical advice. Privacy Policy: https://sunheihei.github.io/app-policie/lightyet_privacy.html Terms of Use: https://sunheihei.github.io/app-policie/lightyet_terms.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Download LightYet and turn everyday records into a clearer picture of your progress.

About

ボディログ

Features
Read full description

ボディログは、筋トレ・食事・体重・体型写真をひとつのアプリでまとめて記録できる、フィットネス記録アプリです。 大会に出場する方はもちろん、日々のトレーニングや体づくりを記録したいすべての方にお使いいただけます。 【できること】 ■ 体重・体脂肪率の記録 日々の体重・体脂肪率をシンプルに記録。推移はグラフでひと目で確認できます。 ■ 食事管理 カロリー・PFC(タンパク質・脂質・炭水化物)を記録。2,500種類以上の食品データベースから検索でき、よく使う食材はお気に入り・履歴からすぐに選べます。朝食・昼食・夕食・間食ごとに分けて管理できます。 ■ トレーニングログ 筋トレは種目・重量・回数をセットごとに記録。有酸素運動は時間からの自動カロリー計算にも対応しています。よく使う種目はお気に入り・履歴からすぐに選べます。 ■ 体型写真記録 体型の変化を写真で記録。気になる2枚を選んでビフォーアフター比較ができます。 ■ ホーム画面で今日の記録をひと目で確認 今日、体重・食事・トレーニング・写真のどれを記録したか、ホーム画面でひと目で分かります。大会までの日数、または目標体重までの差を表示するモードも選べます。 【こんな方におすすめ】 ・ボディメイクやダイエットの記録をひとつにまとめたい方 ・フィジーク・ボディビルなどの大会に向けて準備している方 ・トレーニングや食事の記録を継続したい方 すべてのデータは端末内に保存されるため、オフラインでもご利用いただけます。 今日から、あなたの記録を積み重ねていきましょう。

Screenshots

LightYet4 screens
ボディログ4 screens

Verdict

The call

The clearest difference is in-app purchases: ボディログ at none against LightYet's 3. ボディログ also leads on iOS requirement (15.1 vs 17.0). LightYet's advantage is ads (none vs shown). On price, update cadence 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. LightYet sells 3 in-app purchases, starting at $2.99 per month. ボディログ asks for nothing beyond the download.

UpkeepUpdate frequency

LightYet ships an update weekly, ボディログ every 2 weeks. Both last shipped on October 28, 2026.

Scorecard3 real differences · 3 level
LightYet versus ボディログ: the parameters behind the verdict, then further details
ParameterLightYetボディログ
PriceFreeFree
Update frequencyWeekly — betterEvery 2 weeks
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size39 MB32 MB
Age rating4+4+
Developer依欢 孙Riku Yoshimura

In-app purchases

3 purchases

LightYet

Subscriptions2
  • Monthly7 Days trial$2.991 Month
  • Yearly7 Days trial$19.991 Year
One-time1
  • LightYet-Lifetime$39.99
None

ボディログ

No in-app purchases

Questions

Is LightYet free?
LightYet is free to download, with in-app purchases available.
Is ボディログ free?
ボディログ is free to download, with no in-app purchases.
Do LightYet or ボディログ have ads?
ボディログ shows ads; LightYet does not.
Which is updated more often, LightYet or ボディログ?
LightYet ships an update weekly, and ボディログ every 2 weeks. Most recently, LightYet was updated on October 28, 2026 and ボディログ on October 28, 2026.

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