Comparison

Simple Workout Tracker vs Delta

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

Head to head
About

Simple Workout Tracker

This strength training log helps gym enthusiasts and bodybuilders track workouts with ease. It offers automatic 1RM calculations, advanced set tracking for supersets and tri-sets, and detailed progress graphs to measure gains and crush fitness goals.

Highlights
  • Automatic 1RM calculation
  • Advanced set tracking (supersets, tri-sets)
  • Comprehensive progress tracking
  • Color-coded workout calendar
  • In-depth analytics and graphs
  • Dark mode and rest timer
Features
Read full description

Take Your Strength Training to the Next Level! Looking for the ultimate strength training log? Whether you're a gym enthusiast, bodybuilder, or personal trainer, this app is designed to help you track your workouts with ease and precision. Built for serious lifters, this app makes recording your workouts seamless—so you can focus on lifting, not logging. With automatic 1RM (one-rep max) calculations, advanced tracking for supersets, tri-sets, and giant sets, plus a powerful training volume graph, you'll have everything you need to measure progress and crush your fitness goals. Why You'll Love This App: - Quick & Easy Logging: Intuitive UI designed for fast workout tracking. - Automatic 1RM Calculation: Instantly estimate your one-rep max for smarter training. - Advanced Set Tracking: Effortlessly log supersets, tri-sets, giant sets, warm-ups, and drop sets. - Copy & Paste Workouts: Save time by reusing set details from previous sessions. - Comprehensive Progress Tracking: Monitor your total volume and max 1RM over time. - Multiple Recording Methods: Log training in various formats, including reps, weight, time, and distance. - Color-Coded Calendar: Easily visualize your muscle group workouts at a glance. - In-Depth Analytics: Graphs for total training volume and muscle group trends. - Dark Mode & Rest Timer: Optimize your workout experience. - Customizable Metrics: Switch between kg/lbs to match your training style. - Monthly Progress Reports: Stay motivated with data-driven insights. Upgrade to Premium: - Ad-Free Experience: Stay focused with zero distractions. - Enhanced Graph Analysis: Gain deeper insights into your training trends. If you're serious about weightlifting, bodybuilding, or fitness training, this is the app for you. Download now and start making real gains!

About

Delta

Features
Read full description

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

Simple Workout Tracker4 screens
Delta4 screens

Verdict

The call

The clearest difference is iOS requirement: Delta at 15.1 against Simple Workout Tracker's 18.6. On price, update cadence, ads and in-app purchases 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. Simple Workout Tracker sells 2 in-app purchases, starting at $2.99 per month and Delta sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Simple Workout Tracker ships an update fortnightly, Delta every 11 days. The most recent releases landed on October 15, 2026 and October 2, 2026 respectively.

Scorecard1 real difference · 9 level
Simple Workout Tracker versus Delta: the parameters behind the verdict, then further details
ParameterSimple Workout TrackerDelta
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews85.7% of reviews—
Number of ratings2 — better—
Update frequencyFortnightlyEvery 11 days — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPod — better
Requires iOS18.615.1 — better
Further details — not scored
Size66 MB48 MB
Age rating4+4+
DeveloperDAIKI YUASAB8T LABS

In-app purchases

2 purchases

Simple Workout Tracker

Subscriptions2
  • MUSCLY PREMIUM1 Month trial$2.991 Month
  • Premium Plan1 Month trial$24.991 Year
1 purchases

Delta

One-time1
  • Delta Pro (Remove Ads)$1.99

Questions

Is Simple Workout Tracker free?
Simple Workout Tracker is free to download, with in-app purchases available.
Is Delta free?
Delta is free to download, with in-app purchases available.
Do Simple Workout Tracker or Delta have ads?
Both Simple Workout Tracker and Delta show ads.
Which is updated more often, Simple Workout Tracker or Delta?
Simple Workout Tracker ships an update fortnightly, and Delta every 11 days. Most recently, Simple Workout Tracker was updated on October 15, 2026 and Delta on October 2, 2026.

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