# Caffeine Toolkit vs Espresso Metrix

The clearest difference is in-app purchases: Caffeine Toolkit at none against Espresso Metrix's 2. Caffeine Toolkit also leads on device support (3 vs 1) and iOS requirement (15.1 vs 18.0). Espresso Metrix's advantage is update cadence (every 9 days vs every 13 months). On price and ads there is nothing between them.

Both are free to download. Espresso Metrix sells 2 in-app purchases, starting at $2.99 per month. Caffeine Toolkit asks for nothing beyond the download.

Caffeine Toolkit ships an update every 13 months, Espresso Metrix every 9 days. The most recent releases landed on August 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Caffeine Toolkit | Espresso Metrix |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 9 days** |
| Size | 22 MB | 16 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FATIH MEHMET BABACAN](https://appshunter.io/developer/1817991009) | [Triantafyllos Famprikatzis](https://appshunter.io/developer/1861781174) |

## What reviewers say

### Caffeine Toolkit

[App page](https://appshunter.io/ios/app/caffeine-toolkit/id6746701949)

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

**In-app purchases:** none


### Espresso Metrix

[App page](https://appshunter.io/ios/app/espresso-metrix/id6756611909)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $2.99 | per month |
| Premium Yearly | $17.99 | per year |


## Frequently asked questions

### Is Caffeine Toolkit free?

Caffeine Toolkit is free to download, with no in-app purchases.

### Is Espresso Metrix free?

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

### Do Caffeine Toolkit or Espresso Metrix have ads?

Neither Caffeine Toolkit nor Espresso Metrix shows ads.

### Which is updated more often, Caffeine Toolkit or Espresso Metrix?

Caffeine Toolkit ships an update every 13 months, and Espresso Metrix every 9 days. Most recently, Caffeine Toolkit was updated on August 22, 2026 and Espresso Metrix on September 24, 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.*