# Somnalux vs Caffy

The clearest difference is update cadence: Somnalux at every 4 days against Caffy's every 2 weeks. Somnalux also leads on iOS requirement (16.6 vs 18.6). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Somnalux sells 2 in-app purchases, starting at $14.99 per month and Caffy sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Somnalux against 5.0 for Caffy. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Somnalux ships an update every 4 days, Caffy every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Somnalux | Caffy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/somnalux/id6760980739/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/caffy-caffeine-tracker/id6763036774/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Freemium |
| Size | 3 MB | 27 MB |
| Requires iOS | **16.6** | 18.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Dustin Dockins](https://appshunter.io/developer/1887125476) | [Irfan Behic TIRPANCI](https://appshunter.io/developer/1895131748) |

## What reviewers say

### Somnalux

[App page](https://appshunter.io/ios/app/somnalux/id6760980739)

This app helps you wind down, journal dreams with AI assistance, and wake up gently with smart lights. It offers a library of sleep sounds and tracks your sleep quality to personalize your rest.

**Highlights:** Golden Sleep Mode with binaural frequencies, AI Dream Journal with Claude AI, Smart light integration (Philips Hue, WiZ), Extensive sleep sounds library, Sleep quality tracking, Voice-activated dream logging

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Somnara Premium | $14.99 | per month |
| Somnara Premium Annual | $69.99 | per year |


### Caffy

[App page](https://appshunter.io/ios/app/caffy-caffeine-tracker/id6763036774)

Track your caffeine intake and understand its impact on your sleep and productivity. This app uses science-backed models to provide personalized insights into your caffeine levels and when you'll be ready for sleep.

**Highlights:** Real-time caffeine decay curve, Personalized sleep readiness score, Focus window for productivity peaks, AI weekly analysis of caffeine patterns, Caffeine detox programs, Live home screen widgets

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caffy Premium | $2.99 | per 7 days |
| Caffy Premium | $6.99 | per month |
| Caffy Premium | $29.99 | per year |


## Frequently asked questions

### Is Somnalux free?

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

### Is Caffy free?

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

### Which has better reviews, Somnalux or Caffy?

Somnalux and Caffy are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Somnalux or Caffy have ads?

Neither Somnalux nor Caffy shows ads.

### Which is updated more often, Somnalux or Caffy?

Somnalux ships an update every 4 days, and Caffy every 2 weeks. Most recently, Somnalux was updated on October 31, 2026 and Caffy on October 31, 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.*