# Carbon Tide vs Anxiety

The clearest difference is in-app purchases: Carbon Tide at none against Anxiety's 17. Anxiety's advantage is update cadence (monthly vs every 33 months) and ratings volume (14 vs 1). On price, rating, ads and device support there is nothing between them.

Both are free to download. Anxiety sells 17 in-app purchases, starting at $4.95 per month. Carbon Tide asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Carbon Tide against 4.9 for Anxiety. That said, the two scores are not equally well evidenced: Anxiety has 14 ratings behind it against 1, so its average is the more settled of the two.

Carbon Tide ships an update every 33 months, Anxiety monthly. The most recent releases landed on October 8, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Carbon Tide | Anxiety |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/carbon-tide/id6449018499/reviews)** | [4.9 (14 ratings)](https://appshunter.io/ios/app/anxiety-tracker/id6474464008/reviews) |
| Number of ratings | 1 | **14** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 33 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 15 MB | 215 MB |
| Requires iOS | 15.6 | **15.5** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | +4 |
| Developer | [Coding Minds, Inc.](https://appshunter.io/developer/1480612283) | [Digital Therapeutics](https://appshunter.io/developer/1721663167) |

## What reviewers say

### Carbon Tide

[App page](https://appshunter.io/ios/app/carbon-tide/id6449018499)

Connect to a dedicated device to monitor the air quality in your surroundings. View real-time air quality data directly on your mobile device.

**Highlights:** Connects to Air Pendent device, Measures surrounding air quality, Displays real-time air quality data, Mobile app interface

**Features:** macOS Compatibility

**In-app purchases:** none


### Anxiety

[App page](https://appshunter.io/ios/app/anxiety-tracker/id6474464008)

This app helps you understand and manage anxiety through easy logging, insightful analytics, and customizable features. It offers educational content, community support, and secure data protection to guide you toward better mental wellness.

**Highlights:** Effortless anxiety logging, In-depth pattern analytics, Customizable tracking and reminders, Secure data with encryption, Educational anxiety management resources, Supportive community engagement

**Features:** macOS Compatibility, Siri integration, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| flex pass | $4.95 | per month |
| easy pass | $5.99 | per 7 days |
| weather max | $9.99 | per 3 months |
| flex pass | $9.99 | per month |
| carey ai max | $19.99 | per month |
| yearly access | $19.99 | per year |
| smart pass | $24.99 | per year |
| carey ai ultra | $29.99 | per month |
| Premium Yearly | $29.99 | per year |
| limited sale | $34.99 | per year |
| limited discount | $34.99 | per year |
| Extended Trial | $39.99 | per year |
| yearly access | $44.99 | per year |
| 7-Day Trial | $49.99 | per year |
| store credit | $1.99 | one-time |
| carey ai credits | $8.99 | one-time |
| lifetime upgrade | $119.99 | one-time |


## Frequently asked questions

### Is Carbon Tide free?

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

### Is Anxiety free?

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

### Which has better reviews, Carbon Tide or Anxiety?

Carbon Tide is rated higher. Carbon Tide averages 5.0 out of 5 from 1 ratings, while Anxiety averages 4.9 from 14 ratings.

### Do Carbon Tide or Anxiety have ads?

Neither Carbon Tide nor Anxiety shows ads.

### Which is updated more often, Carbon Tide or Anxiety?

Carbon Tide ships an update every 33 months, and Anxiety monthly. Most recently, Carbon Tide was updated on October 8, 2026 and Anxiety on October 24, 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.*