Comparison

人間バッテリー vs Muscle Memory

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

Head to head
About

人間バッテリー

Features
Read full description

◆ 人間バッテリーとは? あなたの“睡眠量”をスマホのバッテリー残量のように表示する新感覚ライフログアプリです。 ● 主な機能 ・入眠ボタン/起床ボタンで簡単記録 ・理想睡眠時間と実際の睡眠を比較して現在の体力%を計算 ・残り稼働可能時間をリアルタイム表示 ・週間/月間レポートをグラフ化 ・アラーム & ローカル通知で寝不足をお知らせ ・実績解除で新しいテーマや分析機能をアンロック ● こんな人におすすめ ・寝不足でも頑張りがちな学生・社会人 ・時間管理が苦手で“あと何時間持つか”を視覚化したい人 ・睡眠ログを続けたいけれど三日坊主で終わりがちな人 ◆ プライバシー 記録データは端末内に安全に保存され、外部サーバーへ送信されることはありません。HealthKit 連携もオプションで、同意なしにヘルスデータを取得することはありません。 ◆ 今後のロードマップ ・ウィークリーリセットとトークン機能 ・睡眠データのバックアップ/機種間同期 睡眠をチャージして、毎日をもっとアクティブに。さあ、人間バッテリーで「今日の残量」をチェックしよう!

About

Muscle Memory

Features
Read full description

Muscle Memory helps you keep workout, nutrition, and body-weight records together so you can review your progress over time. LOG YOUR TRAINING Record weights, reps, and sets. Add notes to each set, review previous records, and create your own exercises. Check estimated 1RM and training-volume trends. SEE YOUR TRAINING BALANCE Use the calendar and body-part chart to review when you trained and which muscle groups you worked. TRACK MEALS AND MACROS Log meals, calories, protein, carbs, and fat. Set your own daily targets and review your nutrition records. REVIEW YOUR WEIGHT See your weight history, browse previous weeks, and compare weekly averages. Apple Health integration lets you view supported activity and body measurements after you grant permission. KEEP REST TIME SIMPLE Use the interval timer between sets without leaving the app. START FREE, UPGRADE WHEN YOU NEED MORE Core workout and meal recording is available on the free plan with ads. An optional Premium subscription removes ads and unlocks additional analysis and reports. Compare the plans in the app before purchasing. The price and subscription terms are shown on the purchase screen. Muscle Memory is a recording tool, not medical advice. Estimated 1RM values and nutrition summaries are estimates, not guarantees of results. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

人間バッテリー4 screens
Muscle Memory4 screens

Verdict

The call

The clearest difference is ads: 人間バッテリー at none against Muscle Memory's shown. Muscle Memory's advantage is update cadence (every 4 days vs every 4 weeks) and iOS requirement (15.5 vs 26.0). On price, 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. 人間バッテリー sells 4 one-off in-app purchases and Muscle Memory sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

人間バッテリー ships an update every 4 weeks, Muscle Memory every 4 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 3 level
人間バッテリー versus Muscle Memory: the parameters behind the verdict, then further details
Parameter人間バッテリーMuscle Memory
PriceFreeFree
Update frequencyEvery 4 weeksEvery 4 days — better
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.015.5 — better
Further details — not scored
Size15 MB123 MB
Age rating4+4+
Developerkakeru takedahiroto hashimoto

In-app purchases

4 purchases

人間バッテリー

One-time4
  • ちいさなカンパ$0.99
  • うれしいカンパ$1.99
  • しっかりカンパ$3.99
Show 1 more
  • 全力カンパ$6.99
1 purchases

Muscle Memory

Subscriptions1
  • プレミアムプラン$2.991 Month

Questions

Is 人間バッテリー free?
人間バッテリー is free to download, with in-app purchases available.
Is Muscle Memory free?
Muscle Memory is free to download, with in-app purchases available.
Do 人間バッテリー or Muscle Memory have ads?
Muscle Memory shows ads; 人間バッテリー does not.
Which is updated more often, 人間バッテリー or Muscle Memory?
人間バッテリー ships an update every 4 weeks, and Muscle Memory every 4 days. Most recently, 人間バッテリー was updated on October 30, 2026 and Muscle Memory on October 25, 2026.

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