Comparison

LFNJ vs SciFit

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

Head to head
About

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.

Highlights
  • Workout tracking
  • Meal logging
  • Progress monitoring
  • Coach messaging
  • Body measurement tracking
  • Wearable device integration
Features
Read full description

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!

About

SciFit

Features
Read full description

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

LFNJ4 screens
SciFit4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SciFit sells 2 in-app purchases, starting at $8.99 per month. LFNJ asks for nothing beyond the download.

UpkeepUpdate frequency

LFNJ ships an update every 2 months, SciFit weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
LFNJ versus SciFit: the parameters behind the verdict, then further details
ParameterLFNJSciFit
PriceFreeFree
Rating5.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod, Apple Watch
Requires iOS15.0 — better15.1
Further details — not scored
Size175 MB74 MB
Age rating4+12+
DeveloperLimitless Fitness NJ LLCAlan Drabczynski

In-app purchases

None

LFNJ

No in-app purchases

2 purchases

SciFit

Subscriptions2
  • SciFit AI — Monthly3 Days trial$8.991 Month
  • SciFit AI — Yearly7 Days trial$59.991 Year

Questions

Is LFNJ free?
LFNJ is free to download, with no in-app purchases.
Is SciFit free?
SciFit is free to download, with in-app purchases available.
Do LFNJ or SciFit have ads?
Neither LFNJ nor SciFit shows ads.
Which is updated more often, LFNJ or SciFit?
LFNJ ships an update every 2 months, and SciFit weekly. Most recently, LFNJ was updated on November 3, 2026 and SciFit on October 31, 2026.

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