Nomu vs BioDecay
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Nomu
This app simplifies intermittent fasting with a user-friendly timer and progress tracker. It offers popular fasting plans, visual feedback on fasting phases, and a cute companion to keep you motivated. Track your water intake, weight, and BMI with insightful charts.
- Customizable fasting plans
- Live fasting phase tracking
- Streak and progress tracking
- Water intake monitoring
- Weight and BMI logging
- Adorable companion character
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Nomu is a beautifully designed intermittent fasting timer that makes healthy habits feel effortless. Whether you're new to fasting or a seasoned pro, Nomu keeps things simple, motivating, and fun. Try Nomu free for 7 days. After that, Nomu Pro is a monthly or yearly subscription, and you can cancel anytime. FASTING MADE SIMPLE Choose from popular plans like 16:8, 18:6, 20:4, OMAD, or go deep with extended fasts up to 72 hours. Start your fast with one tap and watch your progress in real time with a gorgeous timer ring. FAST FROM YOUR WRIST The Nomu Apple Watch app lets you start, stop, and track your fast on the go — your current phase and progress are always a glance away. TRACK YOUR PROGRESS - Live fasting phases: fat burning, ketosis, autophagy, deep autophagy, and immune renewal - Streak tracking to build consistency day after day - Weight and height logging with automatic BMI calculation - Progress photos to see your visual transformation - Body measurements: waist, hips, chest, arms, and thighs - Dedicated water screen with drink-type tracking - Supplement tracking with reminders MEET NOMU Your adorable fasting companion evolves as you progress through each phase — from caterpillar to butterfly. Nomu celebrates your wins and keeps you company during those tough fasting hours. Unlock 8 wing evolution stages over 180 days. SET YOUR GOALS Define your target weight and timeline. Watch your progress ring fill as you get closer. Nomu tracks the delta so you always know where you stand. LEARN AS YOU FAST Explore the Learn library to understand the science behind every phase — fat burning, ketosis, autophagy, and more — in simple, friendly language. NOMU PRO Unlock premium features including progress photos, weight goals, body measurements, supplement tracking, advanced insights, data export, and custom accent colors. Nomu Pro is a monthly or yearly subscription after your 7-day free trial, or a one-time lifetime purchase. Cancel anytime in App Store settings. INSIGHTS THAT MATTER Weekly and monthly recaps, fasting history, water trends, weight progress, and advanced stats like your best fasting day and longest fast — all in one place. BUILT FOR YOU - Extended fasting plans: 24h, 36h, 48h, and 72h - Apple Watch app - Home and Lock Screen widgets - Apple Health sync - Export your data anytime (CSV or JSON) - Persistent notification showing your fasting status - Auto-start eating window countdown - Dark and light mode - 8 custom accent colors - 14 languages supported - Privacy first: all data stays on your device Start your fasting journey with Nomu today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.tappect.com/apps/nomu/privacy
BioDecay
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BioDecay: Science-Driven Supplement Optimization Master your body’s chemistry with clinical precision. BioDecay is far more than a standard tracking app. It is a high-precision pharmacokinetic modeling engine designed for those who demand a deeper understanding of bioavailability and metabolic behavior. Utilizing dynamic compartmental models, the platform visualizes in real-time how hydration, caffeine, and key supplements interact within your unique physiology. Key Features Real-Time Metabolic Modeling Visualize personalized absorption and decay curves. Gain immediate insights into exactly how water, caffeine, creatine, magnesium, and protein behave inside your system. Dynamic Bio-Interaction The BioDecay engine calibrates based on your current physiological state. If the system detects dehydration or high protein intake, it automatically adjusts the renal clearance rate of other substances to reflect your biological reality. Personalized Performance Plans Configure safety thresholds and daily goals tailored to your specific profile and objectives: General Health: Daily wellness and balance optimization. Hypertrophy: Focused on protein synthesis and creatine loading. Cutter/Definition: Precise adjustments for fat loss and metabolic control. Endurance and Performance: Maximizing energy efficiency and electrolyte balance. Historical Analysis and Integrated Calendar Manage your intake history and review the behavior of your metabolic curves for any past date. The integrated calendar view allows you to identify long-term patterns and trends in your performance. Professional PDF Reporting Generate and export detailed 30-day reports, including concentration levels, consumption trends, and goal compliance—ideal for deep-dive analysis or professional consultation. Environmental Context Integration BioDecay incorporates external variables such as ambient temperature alongside biological data—including weight, biological sex, and health habits—to accurately calculate fluid loss and metabolic rates. Stop guessing. Start optimizing. Download BioDecay and turn data into peak performance.
Screenshots
Verdict
The clearest difference is device support: Nomu at 4 against BioDecay's 1. Nomu also leads on iOS requirement (15.0 vs 26.0). On price, ads and in-app purchases 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. Nomu sells 5 in-app purchases, starting at $2.99 per 7 days and BioDecay sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Nomu | BioDecay |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (97 ratings) — better | — |
| Positive reviews | 85.7% of reviews | — |
| Number of ratings | 97 — better | — |
| Update frequency | Every 5 days | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 84 MB | 1 MB |
| Age rating | 4+ | 17+ |
| Developer | Tappect LLC | Jose Gea |
In-app purchases
Nomu
- Nomu Pro Weekly7 Days trial$2.997 Days
- Nomu Pro Monthly7 Days trial$9.991 Month
- Nomu Pro Yearly$19.991 Year
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- Nomu Pro Yearly7 Days trial$29.991 Year
- Nomu Pro Lifetime2 variants$49.99
BioDecay
- BioDecay Unlock$3.99









