# Cafactor vs WakeSense

The clearest difference is in-app purchases: WakeSense at none against Cafactor's 1. WakeSense also leads on iOS requirement (13.0 vs 17.6). Cafactor's advantage is update cadence (weekly vs every 2 months) and device support. On price there is nothing between them.

Both are free to download. Cafactor sells 1 one-off in-app purchase. WakeSense asks for nothing beyond the download.

Cafactor ships an update weekly, WakeSense every 2 months. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Cafactor | WakeSense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cafactor/id6757445668/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Freemium | — |
| Size | 9 MB | 29 MB |
| Requires iOS | 17.6 | **13.0** |
| Devices | **iPhone, iPad, Apple Watch** | — |
| Age rating | 4+ | 4+ |
| Developer | [Nan Yu](https://appshunter.io/developer/1559044036) | [AMADOU OURY CAMARA](https://appshunter.io/developer/1748625308) |

## What reviewers say

### Cafactor

[App page](https://appshunter.io/ios/app/cafactor/id6757445668)

This app models your body's real-time caffeine levels using a scientific pharmacokinetic approach. It helps you understand your caffeine absorption, decay, and personal sleep thresholds, adapting to your unique biology and activity. Connect with health data for an even smarter metabolic coaching experience.

**Highlights:** Real-time caffeine curve modeling, Personalized physiological parameters, HealthKit integration for adaptive coaching, Exercise and sleep-adaptive thresholds, HRV & Recovery integration, Progressive calibration of half-life, Offline, private tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cafactor Pro | $3.99 | one-time |


### WakeSense

[App page](https://appshunter.io/ios/app/wakesense-sleep-tracker/id6763280053)

**In-app purchases:** none


## Frequently asked questions

### Is Cafactor free?

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

### Is WakeSense free?

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

### Which is updated more often, Cafactor or WakeSense?

Cafactor ships an update weekly, and WakeSense every 2 months. Most recently, Cafactor was updated on October 11, 2026 and WakeSense on October 8, 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.*