# The Sleep Project vs Bottle Cap

The clearest difference is update cadence: Bottle Cap at every 3 weeks against The Sleep Project's every 2 months. The Sleep Project's advantage is iOS requirement (15.1 vs 18.6). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

The Sleep Project ships an update every 2 months, Bottle Cap every 3 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | The Sleep Project | Bottle Cap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (15 ratings)](https://appshunter.io/ios/app/bottle-cap-alcohol-tracker/id6473561114/reviews)** |
| Number of ratings | — | **15** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 22 MB | 20 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [The Sleep Project Limited](https://appshunter.io/developer/1692328599) | [Richard Picot](https://appshunter.io/developer/1719194057) |

## What reviewers say

### The Sleep Project

[App page](https://appshunter.io/ios/app/the-sleep-project/id6450212070)

This app enhances your sleep through educational content and evidence-based tools. It offers structured programs for various sleep challenges, from insomnia to infant sleep, and is designed for participants of specific online coaching programs.

**Highlights:** Free educational content, Evidence-based sleep tools, Structured sleep improvement programs, Tailored solutions for individual needs, Programs for insomnia relief, Infant sleep support, Sleep for peak performance

**Features:** Vision Pro support

**In-app purchases:** none


### Bottle Cap

[App page](https://appshunter.io/ios/app/bottle-cap-alcohol-tracker/id6473561114)

Easily log your alcohol intake to encourage more mindful drinking. Set personal weekly limits and track your progress with a simple, intuitive interface. Your data is kept private and synced securely with your health app.

**Highlights:** Effortless drink logging, Personalized weekly limits, Intuitive progress visualization, Secure Health app sync, Private data storage

**In-app purchases:** none


## Frequently asked questions

### Is The Sleep Project free?

The Sleep Project is free to download, with no in-app purchases.

### Is Bottle Cap free?

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

### Do The Sleep Project or Bottle Cap have ads?

Neither The Sleep Project nor Bottle Cap shows ads.

### Which is updated more often, The Sleep Project or Bottle Cap?

The Sleep Project ships an update every 2 months, and Bottle Cap every 3 weeks. Most recently, The Sleep Project was updated on November 3, 2026 and Bottle Cap on November 4, 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.*