Weighted Up vs Fiber app
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Weighted Up
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WEIGHTED UP Your training. Your progress. Your evolution. BUILD YOUR PROGRAM Build your program exactly the way you want it, on your own or with Weighted IA. Whether you’re a beginner or experienced, not sure where to start? Answer Weighted IA’s questionnaire to get off to a solid start, or adapt what comes next based on what you’ve already done! Fully customize your program, set a duration or train with no limit, select your training days and configure every exercise: sets, reps, weight and difficulty. Use RPE or RIR to precisely track the intensity of your sessions, and create your own supersets to tailor your training to your style. You can also send your programs directly to your friends so they can follow and complete your training plans. TRAIN WITHOUT DISTRACTIONS A simple interface designed to let you focus on what matters: performing. Navigate between your sessions with a daily timeline and plan your next weeks in seconds. For each exercise, get an interactive card with dynamic set tracking and an automatic timer. Need a change? Edit a set, swap an exercise, add a note… everything is accessible in seconds. Need advice? Chat with Weighted IA, your personal training assistant, directly from the Training tab. Get guidance before, during and after your sessions, receive exercise recommendations, adjust your training and get answers to your questions whenever you need them. MEASURE. ANALYZE. PROGRESS. Don’t just train. Track your progress. Weighted Up automatically calculates the volume lifted, muscle distribution and performance trends for each of your sessions to support your progress, week after week and exercise after exercise. In the Programs tab, find everything that matters: * Your program’s progression * Muscle distribution * Your training volume * Your best performances per exercise * A detailed summary of all your sessions * Create personal goals and track your progress towards achieving them Set your own targets, monitor your improvements and stay focused on what you’re working towards. No more calculator. No more guesswork. Nothing slips past you. RESTART. ADAPT. BEAT YOUR LIMITS. Your completed programs remain accessible at any time. Want to start again from the same base? Copy your program. Want to do better than last time? Edit your sets, adjust your weights and go after new personal bests. Your progress doesn’t stop when a program ends. TRAIN TOGETHER. COMPETE. PROGRESS. Training is even better when you share it. With the Social tab, connect with your friends and compare your weekly training volume through a leaderboard. See who’s leading, follow your friends’ progress and add a little friendly competition to your training routine. Send your programs directly to your friends and challenge them to complete your training sessions. WEIGHTED UP Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Fiber app
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FIBER est une application de suivi de musculation complète, pensée pour progresser sérieusement. Enregistrez vos séances en quelques secondes, suivez votre tonnage, votre 1RM estimé (formule de Brzycki) et votre répartition musculaire semaine après semaine. FONCTIONNALITÉS PRINCIPALES • Journal d'entraînement avec calendrier et historique complet • Calcul automatique du tonnage, du volume et du 1RM par exercice • Radar de répartition musculaire et suivi des séries efficaces • Plus de 470 exercices, avec possibilité d'ajouter vos propres exercices • Séances types (Push/Pull/Legs) et séances personnalisées • Suivi du poids de corps • Système de niveaux et badges pour rester motivé • Communauté : ajoutez des amis, comparez vos statistiques • Messagerie intégrée pour partager vos séances • Export de vos statistiques en carte visuelle à partager • Disponible en français, anglais, italien, espagnol et allemand FIBER fonctionne aussi bien pour la musculation, la force athlétique que le renforcement général. Vos données restent privées et vous appartiennent.
Screenshots
Verdict
The clearest difference is in-app purchases: Fiber app at none against Weighted Up's 1. Fiber app also leads on update cadence (every 3 days vs monthly) and iOS requirement (15.0 vs 18.0). Weighted Up's advantage is ads (none vs shown). On price and device support 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. Weighted Up sells 1 in-app purchase, starting at $3.99 per month. Fiber app asks for nothing beyond the download.
Weighted Up ships an update monthly, Fiber app every 3 days. The most recent releases landed on November 11, 2026 and November 10, 2026 respectively.
| Parameter | Weighted Up | Fiber app |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 3 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 22 MB | 16 MB |
| Age rating | 4+ | 4+ |
| Developer | THOMAS PERRI | Victor HAMANT |
In-app purchases
Weighted Up
- Weighted up premium7 Days trial$3.991 Month
Fiber app
No in-app purchases








