# SickPredict™ vs Wrist Temperature Tracker

The clearest difference is review sentiment: SickPredict™ at 73% against Wrist Temperature Tracker's 28%. SickPredict™ also leads on rating (4.1 vs 3.4) and iOS requirement (13.0 vs 18.0). Wrist Temperature Tracker's advantage is monetization model (free with in-app purchases vs subscription) and ads (none vs shown). On price, in-app purchases and device support there is nothing between them.

Both are free to download. SickPredict™ sells 2 in-app purchases, starting at $3.99 per month and Wrist Temperature Tracker sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

SickPredict™ holds the better App Store score, 4.1 against 3.4. Both are backed by a comparable volume of ratings — 30 and 127 respectively. Written reviews point the same way: 73% of SickPredict™'s written reviews are positive against 28% of Wrist Temperature Tracker's.

SickPredict™ ships an update every 2 months, Wrist Temperature Tracker every 11 days. The most recent releases landed on July 5, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | SickPredict™ | Wrist Temperature Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (30 ratings)](https://appshunter.io/ios/app/sickpredict/id1531998468/reviews)** | [3.4 (127 ratings)](https://appshunter.io/ios/app/wrist-temperature-tracker/id6443753237/reviews) |
| Number of ratings | 30 | **127** |
| Positive reviews | **73.1% of reviews** | 27.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 11 days** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 58 MB | 5 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Health Logic Global](https://appshunter.io/developer/1531998470) | [Bernhard Hering](https://appshunter.io/developer/327542085) |

## What reviewers say

### SickPredict™

[App page](https://appshunter.io/ios/app/sickpredict/id1531998468)

This app leverages data from your Apple Watch to predict potential health changes up to 72 hours in advance. It calculates a personalized 'SickNumber™' and tracks your health metrics over time, providing alerts for risk level changes. It is intended for general wellbeing and informational purposes only.

**Highlights:** Predicts health changes up to 72 hours in advance, Calculates personalized SickNumber™, Tracks health changes over time, Provides periodic risk level alerts, Integrates with Apple Health data, Uses machine learning algorithms

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Access | $3.99 | per month |
| Basic Access | $28.99 | per year |


### Wrist Temperature Tracker

[App page](https://appshunter.io/ios/app/wrist-temperature-tracker/id6443753237)

Automatically analyzes your cycle, ovulation, and temperature patterns using Apple Watch data. Visualize your cycle phases with intelligent charting and trend insights. Advanced features like cycle overlays and widgets require an in-app purchase.

**Highlights:** Automatic cycle detection, Ovulation and temperature pattern analysis, Cycle comparison and overlays, Trend insights and phase visualization, Daily temperature heat-map, Yearly trend overview

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Yearly Subscription | $11.99 | per year |
| Unlock Wrist Temperature | $79.99 | one-time |


## Frequently asked questions

### Is SickPredict™ free?

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

### Is Wrist Temperature Tracker free?

Wrist Temperature Tracker is free to download, with in-app purchases available.

### Which has better reviews, SickPredict™ or Wrist Temperature Tracker?

SickPredict™ is rated higher. SickPredict™ averages 4.1 out of 5 from 30 ratings, while Wrist Temperature Tracker averages 3.4 from 127 ratings.

### Do SickPredict™ or Wrist Temperature Tracker have ads?

SickPredict™ shows ads; Wrist Temperature Tracker does not.

### Which is updated more often, SickPredict™ or Wrist Temperature Tracker?

SickPredict™ ships an update every 2 months, and Wrist Temperature Tracker every 11 days. Most recently, SickPredict™ was updated on July 5, 2026 and Wrist Temperature Tracker on September 19, 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.*