Olympsis vs Caffeine Half Life
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Olympsis
Connect with local sports communities, discover events, and find training partners. This platform helps athletes and enthusiasts stay updated on activities and build their athletic network.
- Create or join sports communities
- Discover and RSVP to local events
- Receive real-time activity updates
- Connect and chat with other athletes
- Personalize your sports feed
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Calling all sports enthusiasts and athletes! Olympsis is the ultimate app for connecting with local sports communities and staying up-to-date with the latest events and activities near you. Whether you're a seasoned athlete looking for competitive leagues or a casual sports enthusiast seeking pickup games, Olympsis is your go-to platform for immersing yourself in the local sports scene. Download now and start finding sports events today.
Caffeine Half Life
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Caffeine Half Life helps you estimate how caffeine leaves your system over time — so you can make more informed choices about sleep and energy. Highlights - Personalized elimination curve using your profile (e.g. smoking, pregnancy, oral contraceptives) when you choose to provide them - Sleep-readiness estimates based on your bedtime and caffeine threshold — approximate only - Apple Health: optional read/write for dietary caffeine, plus HRV correlation on the chart so you can spot patterns (you control permissions) - Widgets and Apple Watch complications for quick glances — including a trend graph complication - Interactive chart — drag to inspect caffeine levels and HRV at any time of day How it works The app uses a simplified pharmacokinetic model (Bateman equation) to estimate caffeine absorption and elimination based on your personalized half-life. Factors like age, BMI, activity level, smoking, pregnancy, and oral contraceptives adjust the half-life up or down from the ~5-hour population average. Important: This app is for general wellness and educational purposes. It is not medical advice and not a medical device. All estimates are approximate — individual metabolism varies. Consult a healthcare professional for health decisions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Olympsis at none against Caffeine Half Life's 1. Olympsis also leads on iOS requirement (17 vs 26.0). Caffeine Half Life's advantage is update cadence (every 5 days vs every 2 weeks). On price, ads 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. Caffeine Half Life sells 1 in-app purchase, starting at $1.99 per month. Olympsis asks for nothing beyond the download.
Olympsis ships an update every 2 weeks, Caffeine Half Life every 5 days. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.
| Parameter | Olympsis | Caffeine Half Life |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad, Apple Watch — better |
| Requires iOS | 17 — better | 26.0 |
| Further details — not scored | ||
| Size | 45 MB | 13 MB |
| Age rating | 17+ | 12+ |
| Developer | Olympsis Inc. | Adrian Nowak |
In-app purchases
Olympsis
No in-app purchases
Caffeine Half Life
- Premium$1.991 Month









