# Caffeine Intake Tracker Log vs Bio

The clearest difference is device support: Bio at 3 against Caffeine Intake Tracker Log's 1. Bio also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Caffeine Intake Tracker Log sells 2 in-app purchases, starting at $1.99 per month and Bio sells 3 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 26, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Caffeine Intake Tracker Log | Bio |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Size | 14 MB | 42 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mustafa Kulac](https://appshunter.io/developer/1782678392) | [Thomas Ferrer](https://appshunter.io/developer/1801518132) |

## What reviewers say

### Caffeine Intake Tracker Log

[App page](https://appshunter.io/ios/app/caffeine-intake-tracker-log/id6755601213)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $1.99 | per month |
| Annual | $6.99 | per year |


### Bio

[App page](https://appshunter.io/ios/app/bio-rhythm-caffeine-tracker/id6756811259)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| weekly subscrition | $1.99 | per 7 days |
| monthly subscrition | $5.99 | per month |
| yearly subscription | $29.99 | per year |


## Frequently asked questions

### Is Caffeine Intake Tracker Log free?

Caffeine Intake Tracker Log is free to download, with in-app purchases available.

### Is Bio free?

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

### Do Caffeine Intake Tracker Log or Bio have ads?

Neither Caffeine Intake Tracker Log nor Bio shows ads.

### Which is updated more often, Caffeine Intake Tracker Log or Bio?

Caffeine Intake Tracker Log ships an update every 2 months, and Bio every 2 months. Most recently, Caffeine Intake Tracker Log was updated on October 26, 2026 and Bio on October 13, 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.*