# NicOfTime vs Substrata

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.

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.

## The numbers

| Metric | NicOfTime | Substrata |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/nicoftime-stop-today/id1558396101/reviews) | [5.0 (4 ratings)](https://appshunter.io/ios/app/substrata-headache-tracker/id6759664433/reviews) |
| Number of ratings | 2 | **4** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | **Free** | Freemium |
| Size | 18 MB | 7 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [Tyler Lyczak](https://appshunter.io/developer/1558396103) | [Steven Knauss](https://appshunter.io/developer/1877190883) |

## What reviewers say

### NicOfTime

[App page](https://appshunter.io/ios/app/nicoftime-stop-today/id1558396101)

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.

**Highlights:** Adaptive algorithm for gradual reduction, Supports nicotine addiction cessation, Aims to save lives and money, Scales to individual user needs

**Features:** macOS Compatibility

**In-app purchases:** none


### Substrata

[App page](https://appshunter.io/ios/app/substrata-headache-tracker/id6759664433)

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.

**Highlights:** 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

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Substrata Premium Monthly | $4.99 | per month |
| Substrata Premium Annual | $29.99 | per year |
| Substrata Premium | $3.99 | one-time |
| Substrata Premium Lifetime | $89.99 | one-time |


## Frequently asked questions

### Is NicOfTime free?

NicOfTime is free to download, with no in-app purchases.

### Is Substrata free?

Substrata is free to download, with in-app purchases available.

### Which has better reviews, NicOfTime or Substrata?

NicOfTime and Substrata are both rated 5.0 out of 5 on the App Store, from 2 and 4 ratings respectively.

### Do NicOfTime or Substrata have ads?

Neither NicOfTime nor Substrata shows ads.

### Which is updated more often, NicOfTime or Substrata?

NicOfTime ships an update every 2 weeks, and Substrata every 4 days. Most recently, NicOfTime was updated on October 3, 2026 and Substrata on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*