# Brim vs PulseWaveViewer

The clearest difference is in-app purchases: PulseWaveViewer at none against Brim's 2. PulseWaveViewer also leads on iOS requirement (15.6 vs 17.0). Brim's advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Brim sells 2 in-app purchases, starting at $1.99 per month. PulseWaveViewer asks for nothing beyond the download.

Brim ships an update every 5 days, PulseWaveViewer every 2 months. The most recent releases landed on October 14, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Brim | PulseWaveViewer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 2 months |
| Monetization | Freemium | — |
| Size | 6 MB | 39 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Juraj Dollinger-Lenharcik](https://appshunter.io/developer/1885930418) | [Sadayuki Akagi](https://appshunter.io/developer/1886078023) |

## What reviewers say

### Brim

[App page](https://appshunter.io/ios/app/brim-smart-water-tracker/id6761324419)

This app automatically adjusts your daily water intake goals based on factors like weather, activity, and sleep. It tracks various drink types and offers smart reminders to help you stay hydrated. Advanced features include electrolyte tracking and integration with Apple Health.

**Highlights:** Adaptive hydration goals, Workout and sleep tracking integration, Smart reminders, All drink types logged, Home screen widgets, Stats and streaks, Electrolyte tracking

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Brim Pro – Monthly | $1.99 | per month |
| Brim Pro – Yearly | $9.99 | per year |


### PulseWaveViewer

[App page](https://appshunter.io/ios/app/pulsewaveviewer/id6761648353)

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

**In-app purchases:** none


## Frequently asked questions

### Is Brim free?

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

### Is PulseWaveViewer free?

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

### Do Brim or PulseWaveViewer have ads?

PulseWaveViewer shows ads; Brim does not.

### Which is updated more often, Brim or PulseWaveViewer?

Brim ships an update every 5 days, and PulseWaveViewer every 2 months. Most recently, Brim was updated on October 14, 2026 and PulseWaveViewer on October 18, 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.*