Focus40 vs BioState
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Focus40
This app offers interactive eye exercises and focus training to improve visual health. It utilizes AR to measure reading distance and provides personalized settings for various exercise modes. Track your progress and reduce eye strain in just a few minutes daily.
- AR reading distance measurement
- 5 eye exercise modes
- Personalized time and speed settings
- Progress tracking
- User-friendly interface
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Focus40** is an interactive app designed to support your eye health and enhance your focus abilities. • Measure reading distance with AR technology • 5 different eye exercise modes (Circular, Zigzag, Star, etc.) • Personalisation with time and speed settings • Record and track progress • User-friendly interface • Those experiencing blurred vision • Individuals who spend long hours in front of screens • Anyone looking to increase their reading focus time • Anyone wanting to reduce eye strain Give your eyes the break they deserve in just 3 minutes with Focus40.
BioState
This app tracks intermittent fasting progress, visualizing biological insights based on elapsed time. It helps users understand their body's metabolic stages, from processing meals to cellular cleanup, with advanced iOS integrations for at-a-glance monitoring.
- Fasting timer with metabolic stage visualization
- Live Activities and Dynamic Island integration
- Home Screen widgets
- Retroactive timer editing ('Time Machine')
- On-device data processing
- No account or data collection required
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Track Your Fast. Visualize Your Biology. BioState is more than a stopwatch—it’s a metabolic compass. While other apps just count down the minutes, BioState uses your fasting data to visualize exactly what is happening inside your body. Built for biohackers, intermittent fasters, and those seeking cellular health, BioState bridges the gap between effort and biological insight. THE FIVE METABOLIC STAGES Understand the science of your fast. BioState tracks your progression through five distinct biological phases based on your elapsed time: • Anabolic (0-4h): Your body processes your last meal. • Catabolic (4-16h): Transitioning from glucose to fat-burning. • Ketosis (16-24h): Fat-burning is fully initiated as primary fuel. • Autophagy (24-72h): Cellular "cleanup" and regeneration begins. • Deep Reset (72h+): Maximum immune system and hormonal reset. ENGINEERED FOR THE MODERN iPHONE Get the data you need without ever unlocking your phone. BioState utilizes the latest iOS technology to keep you informed: • Live Activities: See your active timer and current metabolic stage on your Lock Screen. • Dynamic Island: Monitor your progress at a glance while using other apps. • Home Screen Widgets: Beautifully designed widgets to keep your goals front-and-center. THE "TIME MACHINE" EDITOR Life happens. If you forgot to start your timer, our intuitive "Time Machine" feature allows you to retroactively edit your start time. Your history and metabolic data stay 100% accurate, no matter when you remembered to tap "Start." PRIVACY & SIMPLICITY Your health data is personal. • No accounts or logins required. • No tracking or personal data collection. • 100% On-Device: Your data never leaves your iPhone. UPGRADE TO BIOSTATE PRO Take your fasting journey further with Pro features: • Unlimited History: Look back at every fast you’ve ever completed. • Exclusive Widgets: Access premium widget styles for your Home Screen. • Support Independent Devs: Help us continue building the most transparent fasting tool on the App Store.
Screenshots
Verdict
The clearest difference is review sentiment: BioState at 100% against Focus40's 0%. Focus40's advantage is device support (3 vs 1) and iOS requirement (16.0 vs 18.5). On price, ads, in-app purchases and monetization model 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. Focus40 sells 3 in-app purchases, starting at $1.99 per month and BioState sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Focus40 | BioState |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) — better | — |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 2 — better | — |
| Update frequency | Every 6 months | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, Mac — better | iPhone |
| Requires iOS | 16.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 30 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Mesut Akbas | xavier toefield |
Customer experience
Focus40
BioState
In-app purchases
Focus40
- Focus40 Plus Monthly Sub.7 Days trial$1.991 Month
- Focus40 Plus – Yearly Sub.7 Days trial$4.991 Year
- Focus40 Plus-Lifetime$9.99
BioState
- Lifetime Pro$9.99









