FiTin vs Delta
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FiTin
Effortlessly log your weightlifting sessions and track your strength gains. Connect with friends to share workouts, stay motivated, and cheer each other on. Features include quick logging, exercise history, and progress visualization.
- Fast workout logging
- Track sets, reps, and weight
- 200+ built-in exercises
- Progress visualization
- Social sharing and motivation
- Rest timer
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FiTin makes logging your workouts effortless and keeps you motivated by connecting you with friends who lift. Track your sets, reps, and weight in seconds, then watch your strength grow week after week. Whether you're new to the gym or chasing your next personal record, FiTin gives you a simple, fast way to stay consistent and never lose track of your progress. FAST, SIMPLE WORKOUT LOGGING - Log sets, reps, and weight in just a few taps - Your last workout's numbers appear automatically, so you always know what to beat - 200+ built-in exercises plus your own custom moves - Save favorites for quick access - Supersets and drop sets supported - Built-in rest timer TRAIN BY MUSCLE GROUP Organize everything around Chest, Back, Shoulders, Arms, Legs, and Abs with clear, color-coded icons. SEE YOUR PROGRESS - A calendar view of every training day - Monthly frequency at a glance - Full history for each exercise - Instant comparison with your last session A FITNESS COMMUNITY THAT KEEPS YOU GOING - Share your workout with a single tap when you're done - See what your friends are training and stay inspired - Like and comment to cheer each other on - Discover people you may know WHO IT'S FOR - Anyone who struggles to stay consistent - Lifters who want to actually feel their progress - People who train harder with friends than alone - Anyone looking for a clean, no-clutter tracker PREMIUM Everything you need to train is free forever. Upgrade to Premium for more: - Full-history volume charts for every exercise - Personal Record (PR) tracking - Access to records older than 6 months SIGN UP IN SECONDS Get started with email, Apple, or Google. Download FiTin and turn every workout into progress you can see. Stronger together. Terms of Use (EULA): https://fitin.co.jp/terms Privacy Policy: https://fitin.co.jp/privacy
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 ads: FiTin at none against Delta's shown. FiTin also leads on update cadence (every 4 days vs every 11 days). On price, in-app purchases, device support and iOS requirement 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. FiTin sells 3 in-app purchases, starting at $1.99 per month and Delta sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
FiTin ships an update every 4 days, Delta every 11 days. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.
| Parameter | FiTin | Delta |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 69.2% of reviews | — |
| Update frequency | Every 4 days — better | Every 11 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 134 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | FiTin Inc. | B8T LABS |
In-app purchases
FiTin
- プレミアムプラン(月額)$1.991 Month
- プレミアムプラン(年額)$22.991 Year
- プレミアムプラン(生涯)$69.99
Delta
- Delta Pro (Remove Ads)$1.99









