Workout Routine Memo vs Delta
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Workout Routine Memo
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MuscleMemo is a simple workout log designed to make tracking your strength training quick and efficient. Easily record weight, reps, and sets, create weekly or custom workout routines, and follow your planned exercises while you train. View your previous workout results and copy previous weights and reps to reduce repetitive input. MuscleMemo also provides estimated 1RM values and exercise-specific rest timers to help you keep your workouts organized. Apple Watch is supported. During your workout, you can check your routine, log sets, and use rest timers directly from your Apple Watch without taking out your iPhone. In addition to standard sets, MuscleMemo supports supersets, giant sets, and unilateral exercises with separate left and right records. Cardio exercises can also be tracked by time, distance, and speed. Your workout history can be reviewed by date, making it easy to look back on previous sessions and track your training over time. Key Features ・Track weight, reps, and sets ・View previous workout records ・Copy previous weights and reps ・Create weekly workout routines ・Create custom workout routines ・View routines and log sets on Apple Watch ・Use rest timers on Apple Watch ・Automatically display estimated 1RM ・Exercise-specific rest timers ・Superset support ・Giant set support ・Separate left/right tracking for unilateral exercises ・Track cardio time, distance, and speed ・Review workout history by date ・Switch between kg and lb ・One-time purchase to remove ads Make your workout tracking simpler with MuscleMemo.
Delta
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前回よりも強くなる。 ジムでこの意識を持てないと、今日のトレーニングはなんとなくで終わってしまいます。 Deltaは、同じ種目の「前回」と「今日」を比べることをコンセプトにした筋トレ記録アプリです。 できること: ・前回の重量と回数を自動で引き継ぎ。入力は数字を少し直すだけ ・次に挙げる重量を提案 ・毎回の種目が決まっている人向けのテンプレート機能 ・推定1RM(今の実力で1回挙げられる重さの目安)の推移をグラフで表示 ・週ごとの総ボリュームと、部位ごとの偏りをチェック ・自己ベスト更新をトロフィーで表示 ・RPE / RIR は、使う人だけ記録可能 ジムで使いやすいように、数字は大きく、ボタンは片手で押しやすい位置に配置。 画面はシンプルで、余計な飾りはありません。 記録は端末内に保存されます。アカウント登録は不要です。 広告は買い切り(¥400)で非表示にできます。サブスクではありません。 日本語と英語に対応しています。 昨日の自分との差分を、今日の力に。 Deltaは、前回より強くなるための記録アプリです。
Screenshots
Verdict
The clearest difference is update cadence: Delta at every 11 days against Workout Routine Memo's every 3 weeks. Delta also leads on iOS requirement (15.1 vs 17.0). 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
Both are free to download. Workout Routine Memo sells 1 one-off in-app purchase and Delta sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Workout Routine Memo ships an update every 3 weeks, Delta every 11 days. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.
| Parameter | Workout Routine Memo | Delta |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 11 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 12 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | sakai keitaro | B8T LABS |
In-app purchases
Workout Routine Memo
- 広告を非表示$0.99
Delta
- Delta Pro (Remove Ads)$1.99








