# Caffie vs Caffeine mg

The clearest difference is update cadence: Caffeine mg at weekly against Caffie's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Caffie sells 1 one-off in-app purchase and Caffeine mg sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Caffie ships an update every 4 months, Caffeine mg weekly. The most recent releases landed on November 12, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Caffie | Caffeine mg |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Size | 2 MB | 5 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Kosuke Sakuma](https://appshunter.io/developer/1889104068) | [kensuke ueda](https://appshunter.io/developer/961845390) |

## What reviewers say

### Caffie

[App page](https://appshunter.io/ios/app/caffie/id6761358126)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caffie Pro | $4.99 | one-time |


### Caffeine mg

[App page](https://appshunter.io/ios/app/caffeine-mg-half-life-tracker/id6763047063)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| カフェインmg Pro | $1.99 | one-time |


## Frequently asked questions

### Is Caffie free?

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

### Is Caffeine mg free?

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

### Do Caffie or Caffeine mg have ads?

Neither Caffie nor Caffeine mg shows ads.

### Which is updated more often, Caffie or Caffeine mg?

Caffie ships an update every 4 months, and Caffeine mg weekly. Most recently, Caffie was updated on November 12, 2026 and Caffeine mg on November 5, 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.*