NicOfTime vs Substrata
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NicOfTime
This app helps users quit nicotine addiction through an adaptive algorithm that gradually reduces intake. It aims to improve users' lives and finances by supporting them through the cessation process.
- Adaptive algorithm for gradual reduction
- Supports nicotine addiction cessation
- Aims to save lives and money
- Scales to individual user needs
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NicOfTime is a new way for people to stop their nicotine addiction, saving there life and money. By using an adaptive algorithm, it can scale to anyone's life. It will scale down their nicotine addiction day by day until your addiction has stopped.
Substrata
This app analyzes environmental factors like weather and noise alongside your personal health data, such as sleep and heart rate, to identify potential triggers for headaches and other symptoms. It uses on-device intelligence to provide plain-English explanations and predictive alerts, helping you understand what affects your well-being.
- Sleep condition scoring
- Headache and symptom logging
- Personal trigger profile building
- Predictive alert system
- On-device AI correlation
- HealthKit and Apple Watch integration
- PDF and CSV export
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Wake up tired without knowing why? Headaches that hit out of nowhere? Substrata watches the noise, weather, and air around you, then pairs it with your sleep, heart rate, and HRV — so you can see exactly what's affecting how you feel. The analysis runs entirely on your iPhone using Apple Intelligence. After about two weeks, the on-device correlation engine starts surfacing connections — barometric pressure drops that match your migraine days, bedroom noise that quietly steals your deep sleep, weather patterns that drag down your HRV. Plain-English explanations you could share with your doctor. YOUR SLEEP, EXPLAINED - Sleep Condition Score: how well your bedroom actually treated you (noise, temperature, humidity, pressure stability) - Pairs with HealthKit sleep data + Apple Watch wrist temperature - Hourly, daily, weekly charts with WHO/EPA threshold zones color-coded HEADACHE & SYMPTOM TRIGGERS - Tap to log a headache (migraine, tension, cluster) with severity and notes - After 20-30 logged events, your personal trigger profile starts building - Predictive alerts when conditions match your past headache patterns - Also tracks allergies, mood, joint pain, energy ON-DEVICE INTELLIGENCE - All correlation analysis runs on your iPhone - Weather comes from Apple WeatherKit, using your approximate location - No accounts. No third-party analytics SDKs. - Microphone is not used in production; noise data comes from Apple Watch - Privacy nutrition label: no data collected WHAT YOU GET WITH PREMIUM - Every correlation the engine finds (free tier shows your top one) - Personal headache trigger profile + predictive alerts - AI-generated insight narratives - PDF and CSV export — bring a real report to your doctor - History beyond 30 days Requires iPhone with iOS 26.2 or later and an Apple Intelligence-capable device for AI insights. Apple Watch strongly recommended for environmental noise, HRV, and sleep-stage data; works without a Watch using weather, sleep duration, and headphone audio. Substrata is not a medical device and does not provide medical advice. It explores potential connections between environmental and health data for personal review. Consult a healthcare provider for diagnosis or treatment. Privacy Policy: https://kynossstudios.com/substrata-privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: NicOfTime at none against Substrata's 4. NicOfTime also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.2). Substrata's advantage is update cadence (every 4 days vs every 2 weeks). On price, rating, ratings volume and ads 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. Substrata sells 4 in-app purchases, starting at $4.99 per month. NicOfTime asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for NicOfTime against 5.0 for Substrata. Both are backed by a comparable volume of ratings — 2 and 4 respectively.
NicOfTime ships an update every 2 weeks, Substrata every 4 days. The most recent releases landed on October 3, 2026 and October 17, 2026 respectively.
| Parameter | NicOfTime | Substrata |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (4 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 2 weeks | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 18 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | Tyler Lyczak | Steven Knauss |
Customer experience
NicOfTime
Substrata
In-app purchases
NicOfTime
No in-app purchases
Substrata
- Substrata Premium Monthly7 Days trial$4.991 Month
- Substrata Premium Annual7 Days trial$29.991 Year
- Substrata Premium$3.99
- Substrata Premium Lifetime$89.99









