# Optimal Coffee Notes vs Act Four

The clearest difference is in-app purchases: Optimal Coffee Notes at none against Act Four's 3. Optimal Coffee Notes also leads on device support (3 vs 1) and iOS requirement (14.0.0 vs 16.0). Act Four's advantage is update cadence (every 8 days vs every 4 months) and review sentiment (100% vs 75%). On price, rating and ads there is nothing between them.

Both are free to download. Act Four sells 3 in-app purchases, starting at $3.99 per month. Optimal Coffee Notes asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Optimal Coffee Notes against 5.0 for Act Four. Both are backed by a comparable volume of ratings — 5 and 17 respectively. Written reviews are what separate them: 75% of Optimal Coffee Notes's written reviews are positive against 100% of Act Four's.

Optimal Coffee Notes ships an update every 4 months, Act Four every 8 days. The most recent releases landed on September 18, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | Optimal Coffee Notes | Act Four |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/optimal-coffee-notes/id1583625309/reviews) | [5.0 (17 ratings)](https://appshunter.io/ios/app/act-four/id6473959855/reviews) |
| Number of ratings | 5 | **17** |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 8 days** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#196** |
| Size | 55 MB | 4 MB |
| Requires iOS | **14.0.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrew Daniels](https://appshunter.io/developer/1295689735) | [AIV, LLC](https://appshunter.io/developer/1693494613) |

## What reviewers say

### Optimal Coffee Notes

[App page](https://appshunter.io/ios/app/optimal-coffee-notes/id1583625309)

Record and track detailed notes about your coffee brewing sessions. Document variables like grind size and brewing time to understand their impact on flavor. Rate your coffee and organize notes by brewing method or bean type to refine your perfect cup.

**Highlights:** Record coffee brewing details, Rate and review coffee taste, Add photos and custom details, Organize notes by method/type, Gain insights into flavor variables

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

**In-app purchases:** none


### Act Four

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

**Currently charting:** #196 Top Grossing · Food & Drink (US App Store)

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 |


## Frequently asked questions

### Is Optimal Coffee Notes free?

Optimal Coffee Notes is free to download, with no in-app purchases.

### Is Act Four free?

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

### Which has better reviews, Optimal Coffee Notes or Act Four?

Optimal Coffee Notes and Act Four are both rated 5.0 out of 5 on the App Store, from 5 and 17 ratings respectively.

### Do Optimal Coffee Notes or Act Four have ads?

Neither Optimal Coffee Notes nor Act Four shows ads.

### Which is updated more often, Optimal Coffee Notes or Act Four?

Optimal Coffee Notes ships an update every 4 months, and Act Four every 8 days. Most recently, Optimal Coffee Notes was updated on September 18, 2026 and Act Four on September 7, 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.*