# Act Four vs Decenza

The clearest difference is price: Act Four at Free against Decenza's $9.99. Decenza's advantage is in-app purchases (none vs 3). On rating, review sentiment, ratings volume and update cadence there is nothing between them.

Act Four is free to download; Decenza costs $9.99 up front. Act Four sells 3 in-app purchases, starting at $3.99 per month. Decenza asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Act Four against 5.0 for Decenza. Both are backed by a comparable volume of ratings — 18 and 10 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Act Four ships an update every 8 days, Decenza every 10 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Act Four | Decenza |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | [5.0 (18 ratings)](https://appshunter.io/ios/app/act-four/id6473959855/reviews) | [5.0 (10 ratings)](https://appshunter.io/ios/app/decenza/id6757874586/reviews) |
| Number of ratings | **18** | 10 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 10 days |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 4 MB | 131 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [AIV, LLC](https://appshunter.io/developer/1693494613) | [Kulitorum](https://appshunter.io/developer/377269779) |

## What reviewers say

### Act Four

[App page](https://appshunter.io/ios/app/act-four/id6473959855)

Learn to brew perfect espresso with video guidance and taste analysis. The app tracks your brew automatically, helping you adjust your machine and recipe for your ideal cup. Designed for both beginners and experienced baristas.

**Highlights:** Video-guided brewing workflow, Speed and taste analysis, Machine and grinder adjustment guidance, Automatic recipe tracking, Hands-free operation, Brew Weight and Timing adjustments

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $3.99 | per month |
| Yearly | $29.99 | per year |
| SwitchBot Integration | $19.99 | one-time |


### Decenza

[App page](https://appshunter.io/ios/app/decenza/id6757874586)

This app offers precise control over your espresso machine, providing real-time shot visualization, profile management, and AI-powered analysis. It supports universal Bluetooth scales and maintains a complete shot history for progress tracking and community sharing.

**Highlights:** Real-time shot visualization, Profile import and creation, Universal Bluetooth scale support, Complete shot history logging, AI-powered extraction analysis, VoiceOver accessibility

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

**In-app purchases:** none


## Frequently asked questions

### Is Act Four free?

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

### Is Decenza free?

Decenza costs $9.99, with no in-app purchases.

### Which has better reviews, Act Four or Decenza?

Act Four and Decenza are both rated 5.0 out of 5 on the App Store, from 18 and 10 ratings respectively.

### Do Act Four or Decenza have ads?

Neither Act Four nor Decenza shows ads.

### Which is updated more often, Act Four or Decenza?

Act Four ships an update every 8 days, and Decenza every 10 days. Most recently, Act Four was updated on October 24, 2026 and Decenza on October 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.*