# Thermo vs Cycle Tracking

The clearest difference is rating: Thermo at 3.6 against Cycle Tracking's 2.9. Thermo also leads on update cadence (monthly vs every 11 months) and ratings volume (98 vs 28). Cycle Tracking's advantage is review sentiment (45% vs 5%) and in-app purchases (none vs 8). On price and device support there is nothing between them.

Both are free to download. Thermo sells 8 in-app purchases, starting at $10.99 per month. Cycle Tracking asks for nothing beyond the download.

Thermo holds the better App Store score, 3.6 against 2.9. Both are backed by a comparable volume of ratings — 98 and 28 respectively. Written reviews complicate that: 5% of Thermo's written reviews are positive against 45% of Cycle Tracking's, so the app with the better star average is not the one people write more warmly about.

Thermo ships an update monthly, Cycle Tracking every 11 months. The most recent releases landed on October 22, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Thermo | Cycle Tracking |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (98 ratings)](https://appshunter.io/ios/app/thermo-temperature-check-in/id1046767441/reviews)** | [2.9 (28 ratings)](https://appshunter.io/ios/app/cycle-tracking/id1459548214/reviews) |
| Number of ratings | **98** | 28 |
| Positive reviews | 5.2% of reviews | **45.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 11 months |
| Monetization | Freemium | **Free** |
| Size | 90 MB | 3 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Daily Discovers](https://appshunter.io/developer/1408603176) | [Apple](https://appshunter.io/developer/284417353) |

## What reviewers say

### Thermo

[App page](https://appshunter.io/ios/app/thermo-temperature-check-in/id1046767441)

Easily track family health by logging temperature changes and other vital signs. Create individual profiles to monitor each person's well-being over time with helpful charts and graphs. Set personalized reminders for consistent tracking and utilize voice input for added convenience.

**Highlights:** Family health tracking, Individual profiles, Temperature logging, Health dynamic graphs, Personalized reminders, Voice input, Apple Watch sync

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thermo  - 1 Month no trial | $10.99 | per month |
| Thermo Premium | $12.99 | per month |
| Thermo Premium - 1 month | $12.99 | per month |
| Thermo - Digital Wellness | $18.99 | per 3 months |
| Thermo - Digital Wellness + | $19.99 | per month |
| Thermo Plus - 12 months | $27.99 | per year |
| 3 months subscription | $39.99 | per 3 months |
| 3 Month Subscription | $59.99 | per 3 months |


### Cycle Tracking

[App page](https://appshunter.io/ios/app/cycle-tracking/id1459548214)

This app helps you discreetly track your menstrual cycle, including flow, symptoms, and fertility. Receive timely notifications for your period and fertile windows, with data syncing to your iPhone's Health app.

**Highlights:** Daily log for flow, symptoms, and fertility, Track ovulation test results and BBT, Period and fertile window predictions, Pregnancy tracking and gestational age, Customizable period and fertile window notifications, Cycle history and statistics in Health app, Encrypted health data with iCloud sync

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Thermo free?

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

### Is Cycle Tracking free?

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

### Which has better reviews, Thermo or Cycle Tracking?

Thermo is rated higher. Thermo averages 3.6 out of 5 from 98 ratings, while Cycle Tracking averages 2.9 from 28 ratings.

### Do Thermo or Cycle Tracking have ads?

Thermo shows ads; Cycle Tracking does not.

### Which is updated more often, Thermo or Cycle Tracking?

Thermo ships an update monthly, and Cycle Tracking every 11 months. Most recently, Thermo was updated on October 22, 2026 and Cycle Tracking 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.*