Nocty vs CaffeineX
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Nocty
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Waking up refreshed starts with understanding how you rest. Nocty transforms your nightly data into clear, actionable insights. By combining advanced sleep stage analysis with key health vitals, we give you a complete picture of your nightly recharge without the complexity. [Sleep Balance] One night doesn't tell the whole story. We track your cumulative sleep over time to calculate your Sleep Debt or Surplus. [Your Daily Sleep Score] Stop guessing how well you slept. We distill your night into a simple, easy-to-understand Sleep Score. Use it to gauge your energy levels and plan your day. [Detailed Stage Analysis] Deep dive into your hypnogram. Visualize exactly how much time you spent in: - Deep Sleep: For physical recovery. - REM Sleep: For mental clarity and dreaming. - Core/Light Sleep: The foundation of your rest. - Awake Time: See interruptions you might not remember. [Vital Health Metrics] We monitor the metrics that matter for your long-term health: - Resting Heart Rate: Track cardiovascular health. - Heart Rate Variability (HRV): A key indicator of recovery and stress. - Respiration Rate: Keep an eye on nightly breathing patterns. - Blood Oxygen (SpO2): Monitor breathing efficiency. [Beautiful Widgets] Keep your insights front and center. Customize your Home Screen with elegant widgets that display your Sleep Score and Vitals at a glance. Your health data is sensitive, and we treat it that way. Nocty integrates seamlessly with Apple Health to read your data securely. Your sleep analysis happens on your device.
CaffeineX
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CaffeineX helps you understand how coffee, tea, energy drinks, and espresso may affect the rest of your day. Instead of only counting cups, CaffeineX estimates your current caffeine level, shows a clear 24-hour curve, and gives a simple sleep reference so you can decide whether another drink still makes sense. What you can do with CaffeineX: - Log common caffeinated drinks quickly - Estimate remaining caffeine based on your entries - See when your level may move closer to your sleep reference - Check today's total intake and personal limit - Review recent caffeine patterns over time - Add custom drinks when presets are not enough - Sync caffeine intake with Apple Health if you choose - Use widgets for a quick glance at your status CaffeineX is built for people who like coffee but do not want caffeine to quietly take over their evening. It keeps the interface calm, focused, and easy to read, so the answer is visible fast: how much caffeine is likely still active, whether it may affect sleep, and when it may be better to pause. Caffeine estimates are for everyday wellness reference only and are not medical advice.
Screenshots
Verdict
The clearest difference is iOS requirement: CaffeineX at 17.0 against Nocty's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Nocty ships an update every 5 days, CaffeineX every 3 days. The most recent releases landed on October 11, 2026 and October 7, 2026 respectively.
| Parameter | Nocty | CaffeineX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | Every 3 days β better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPad β better |
| Requires iOS | 26.0 | 17.0 β better |
| Further details β not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Daniel Ni | ζ₯ εΎ |
In-app purchases
Nocty
No in-app purchases
CaffeineX
No in-app purchases









