# Caffeine Clock vs calinfo

The clearest difference is update cadence: Caffeine Clock at weekly against calinfo's every 3 weeks. calinfo's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Caffeine Clock sells 2 one-off in-app purchases and calinfo sells 3 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

Caffeine Clock ships an update weekly, calinfo every 3 weeks. The most recent releases landed on October 3, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Caffeine Clock | calinfo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (27 ratings)](https://appshunter.io/ios/app/caffeine-clock-track-caffeine/id6504160396/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | Free | — |
| Size | 119 MB | 51 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ANTONIN WINGENDER](https://appshunter.io/developer/1751178342) | [Khalid KALIB](https://appshunter.io/developer/1883376588) |

## What reviewers say

### Caffeine Clock

[App page](https://appshunter.io/ios/app/caffeine-clock-track-caffeine/id6504160396)

This app helps you track your caffeine intake and understand its impact on your sleep. It models caffeine absorption and half-life to provide a clear view of your current and projected levels, allowing you to plan your consumption for better rest.

**Highlights:** Caffeine absorption and half-life modeling, Real-time caffeine level tracking, Interactive home screen widgets, Sleep-aware insights and bedtime planning, Extensive drink database with custom options, Daily caffeine threshold alerts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $4.99 | one-time |
| Remove Ads | $9.99 | one-time |


### calinfo

[App page](https://appshunter.io/ios/app/calinfo/id6760232134)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalInfo Pro Monthly | $6.99 | per month |
| CalInfo Pro 3 Months | $17.99 | per 3 months |
| CalInfo Pro Yearly | $79.99 | per year |


## Frequently asked questions

### Is Caffeine Clock free?

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

### Is calinfo free?

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

### Do Caffeine Clock or calinfo have ads?

Neither Caffeine Clock nor calinfo shows ads.

### Which is updated more often, Caffeine Clock or calinfo?

Caffeine Clock ships an update weekly, and calinfo every 3 weeks. Most recently, Caffeine Clock was updated on October 3, 2026 and calinfo on October 2, 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.*