LFNJ vs SciFit
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LFNJ
This app helps users track workouts, meals, and progress towards fitness goals with coach guidance. It allows for scheduling, real-time messaging with trainers, and body measurement tracking. Connects with wearable devices for seamless data syncing.
- Workout tracking
- Meal logging
- Progress monitoring
- Coach messaging
- Body measurement tracking
- Wearable device integration
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With the LFNJ App, you can start tracking your workouts and meals, measuring results, and achieving your fitness goals, all with the help of your trainers. - Access training plans and track workouts - Schedule workouts and stay committed by beating your personal bests - Track progress towards your goals - Manage your nutrition intake as prescribed by your coach - Set health and fitness goals - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect to wearable devices like your Polar Heart Rate Monitor and Apple Watch (synced to Health app) to sync body stats instantly Download the app today!
SciFit
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SciFit is the intelligent training app that adapts to you — not the other way around. Powered by an AI coach that knows your entire history, SciFit builds and adjusts your program session after session, so you keep progressing without guesswork. — YOUR AI COACH — Ask anything. Every answer draws on your actual sets, loads and progress — not generic advice. Get a plan that evolves with your body. — ADAPTIVE PROGRAMMING — Your loads and volume adjust automatically based on your performance. Deload weeks arrive exactly when your body needs them. — RECOVERY THAT MATTERS — Connect Apple Health and SciFit reads your HRV, resting heart rate and sleep to gauge your readiness — and adapts your session accordingly. Optional cycle tracking adapts training to how you actually feel. — TRACK EVERYTHING — Log workouts in seconds. Follow your volume, personal records and trends with clean, Apple Health-style insights. — SHARE & COMPETE — Turn your records into beautiful cards, challenge friends on monthly leaderboards, and cheer each other on. — BUILT FOR EVERYONE — Science-based, inclusive training for every body and every level. The SciFit AI subscription unlocks unlimited coaching, adaptive programming, recovery insights and logo-free record cards. A 7-day free trial is available. Science. Fitness. Inclusion. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://scifit.fr/confidentialite
Screenshots
Verdict
The clearest difference is in-app purchases: LFNJ at none against SciFit's 2. SciFit's advantage is update cadence (weekly vs every 2 months). On price, ads, 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. SciFit sells 2 in-app purchases, starting at $8.99 per month. LFNJ asks for nothing beyond the download.
LFNJ ships an update every 2 months, SciFit weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | LFNJ | SciFit |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod, Apple Watch |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 175 MB | 74 MB |
| Age rating | 4+ | 12+ |
| Developer | Limitless Fitness NJ LLC | Alan Drabczynski |
In-app purchases
LFNJ
No in-app purchases
SciFit
- SciFit AI — Monthly3 Days trial$8.991 Month
- SciFit AI — Yearly7 Days trial$59.991 Year








