# Focus Battery vs BrewMeter

The clearest difference is in-app purchases: BrewMeter at none against Focus Battery's 2. Focus Battery's advantage is iOS requirement (15.1 vs 17.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Focus Battery sells 2 in-app purchases, starting at $9.99 per month. BrewMeter asks for nothing beyond the download.

Focus Battery ships an update every 4 days, BrewMeter weekly. The most recent releases landed on June 30, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Focus Battery | BrewMeter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/focus-battery/id6755793734/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Weekly |
| Monetization | Subscription | **Freemium** |
| Size | 96 MB | 6 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oleksandr Demchenko](https://appshunter.io/developer/1856395168) | [Benjamin Dupin](https://appshunter.io/developer/1871474236) |

## What reviewers say

### Focus Battery

[App page](https://appshunter.io/ios/app/focus-battery/id6755793734)

Understand your daily focus, mental energy, and peak productivity times. Track how ADHD medications may impact your day and plan your work and breaks around your mind's natural rhythms. Ideal for those with ADHD or seeking to optimize productivity.

**Highlights:** Daily focus forecast, ADHD medication tracking, Mental energy monitoring, Focus metrics and insights, Deep work session planner, Journaling and trend analysis, Focus tests and music

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus Battery Pro — Monthly | $9.99 | per month |
| Focus Battery Pro – Annual | $49.99 | per year |


### BrewMeter

[App page](https://appshunter.io/ios/app/brewmeter-caffeine-tracker/id6760132566)

Track your daily caffeine intake by logging drinks and their volumes. Visualize your caffeine levels with an estimated curve and explore historical data. Gain insights into your consumption habits for personal awareness.

**Highlights:** Log custom drinks with label data, Track volume consumed, Estimated caffeine curve visualization, Daily caffeine-free day recording, Undo accidental logs, CSV export (Pro), Apple Health integration (Pro)

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

**In-app purchases:** none


## Frequently asked questions

### Is Focus Battery free?

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

### Is BrewMeter free?

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

### Do Focus Battery or BrewMeter have ads?

Neither Focus Battery nor BrewMeter shows ads.

### Which is updated more often, Focus Battery or BrewMeter?

Focus Battery ships an update every 4 days, and BrewMeter weekly. Most recently, Focus Battery was updated on June 30, 2026 and BrewMeter on September 21, 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.*