LIBRARY vs FiTin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LIBRARY
Easily log your daily workouts and connect with a large community of fitness enthusiasts. Discover new training partners and share your progress on social media. Hundreds of exercises are pre-registered, with options to add your own.
- Easy workout logging
- Connect with workout friends
- Extensive exercise library
- Add custom exercises
- Share progress on SNS
- Community for trainees
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■ Largest workout community for every trainee! ■ Very easy workout log app! ■ Record daily workout and share on SNS! -------------- LIBRARY is workout community for who loves workout and enjoy training life. Of course, training beginners welcome. Let's all be strong together! -------------- Want to log workout more easily, want to log workout with smartphones instead of handwritten notes, want to increase your training friends, want to have specialized app for training, etc.. The long-awaited workout recording application that answered to the voice that we want to!! ■■ Features of LIBRARY ■■ # 1 Easy log with a simple UI LIBRARY is very simple! You can record your workout more more easily!! # 2 Make new workout friend Many trainees join on LIBRARY. You can find new workout friend! # 3 Lots of exercises are initially registered There are hundreds of exercises registered initially. If you do not have the usual exercises, you can also add the original exercises. In addition, registered exercises in app is updated every day. ■■ Other uses such as... ■ ■ · Maniac muscle talking that can not be posted in usual SNS. · To find a new trainee community. · When you want to brag about your muscles. · When watching everyone's training and want to receive stimulation from others. · When you want to do something different from usual workout. · When another training recording application was too difficult. · always training by yourself, but you really want a buddy. LIBRARY is the most easy-to-use workout recording app that can be used in various usage scenes. Let's spread training community and let's make daily workout more enjoyable and become stronger with everyone!
FiTin
Effortlessly log your gym workouts, track progress, and connect with friends for motivation. This app helps you stay consistent and see your strength grow with fast, simple tracking and community features.
- Fast, simple workout logging
- Log sets, reps, and weight
- Automatic last workout data
- Custom exercises and favorites
- Supersets and drop sets
- Built-in rest timer
- Train by muscle group
- Progress visualization
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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 - Classic 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
Screenshots
Verdict
The clearest difference is in-app purchases: LIBRARY at none against FiTin's 3. LIBRARY also leads on device support (3 vs 1) and iOS requirement (12.0 vs 16.4). FiTin's advantage is update cadence (every 4 days vs every 9 days). On price, review sentiment and ads 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. LIBRARY asks for nothing beyond the download.
LIBRARY ships an update every 9 days, FiTin every 4 days. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | LIBRARY | FiTin |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (8 ratings) — better | — |
| Positive reviews | 70.6% of reviews — better | 69.2% of reviews |
| Number of ratings | 8 — better | — |
| Update frequency | Every 9 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 54 MB | 135 MB |
| Age rating | 4+ | 4+ |
| Developer | Koyo Matsumoto | FiTin Inc. |
Customer experience
LIBRARY
FiTin
In-app purchases
LIBRARY
No 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)$59.99








