# Ketone Meter Breathalyzer vs PLAE Perform

The clearest difference is rating: PLAE Perform at 5.0 against Ketone Meter Breathalyzer's 2.0. PLAE Perform also leads on ads (none vs shown) and monetization model (free vs ad-supported). Ketone Meter Breathalyzer's advantage is update cadence (every 2 weeks vs every 19 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

PLAE Perform holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Ketone Meter Breathalyzer ships an update every 2 weeks, PLAE Perform every 19 months. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Ketone Meter Breathalyzer | PLAE Perform |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (4 ratings)](https://appshunter.io/ios/app/ketone-meter-breathalyzer/id6448868757/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/plae-perform/id6695755039/reviews)** |
| Number of ratings | **4** | 2 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 19 months |
| Monetization | Ad-supported | **Free** |
| Size | 47 MB | 100 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [ReFleX Wireless Inc.](https://appshunter.io/developer/666581212) | [PLAE Vertical Incorporated](https://appshunter.io/developer/1445597558) |

## What reviewers say

### Ketone Meter Breathalyzer

[App page](https://appshunter.io/ios/app/ketone-meter-breathalyzer/id6448868757)

This app pairs with a ketone meter device to provide real-time tracking of your body's fat-burning rate. It helps you set goals, analyze historical data, and optimize your fitness and diet plans for peak performance.

**Highlights:** Real-time fat burning rate tracking, Syncs with ketone meter devices, Personalized insights, Goal setting, Historical data analysis, Optimizes workouts and diet

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

**In-app purchases:** none


### PLAE Perform

[App page](https://appshunter.io/ios/app/plae-perform/id6695755039)

This science-based training app offers expertly designed programs for various fitness levels, from enthusiasts to elite athletes. It provides direct coaching access, community engagement, and a comprehensive video library to help users transform their fitness journey and unlock their full potential.

**Highlights:** Expertly designed training programs, Direct coaching access, Community engagement, Comprehensive video library, Adaptive progression system, Science-based training methods

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ketone Meter Breathalyzer free?

Ketone Meter Breathalyzer is free to download, with no in-app purchases.

### Is PLAE Perform free?

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

### Which has better reviews, Ketone Meter Breathalyzer or PLAE Perform?

PLAE Perform is rated higher. Ketone Meter Breathalyzer averages 2.0 out of 5 from 4 ratings, while PLAE Perform averages 5.0 from 2 ratings.

### Do Ketone Meter Breathalyzer or PLAE Perform have ads?

Ketone Meter Breathalyzer shows ads; PLAE Perform does not.

### Which is updated more often, Ketone Meter Breathalyzer or PLAE Perform?

Ketone Meter Breathalyzer ships an update every 2 weeks, and PLAE Perform every 19 months. Most recently, Ketone Meter Breathalyzer was updated on October 21, 2026 and PLAE Perform on October 25, 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.*