# BACtrack vs GreyBand

The clearest difference is review sentiment: GreyBand at 100% against BACtrack's 27%. GreyBand also leads on rating (5.0 vs 4.1) and in-app purchases (none vs 1). BACtrack's advantage is ratings volume (1.4K vs 45). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. BACtrack sells 1 in-app purchase, starting at $39.99 per year. GreyBand asks for nothing beyond the download.

GreyBand holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: BACtrack has 1.4K ratings behind it against 45, so its average is the more settled of the two. Written reviews point the same way: 27% of BACtrack's written reviews are positive against 100% of GreyBand's.

BACtrack ships an update every 2 weeks, GreyBand every 3 weeks. The most recent releases landed on September 23, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | BACtrack | GreyBand |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (1.4K ratings)](https://appshunter.io/ios/app/bactrack/id553347498/reviews) | **[5.0 (45 ratings)](https://appshunter.io/ios/app/greyband/id6463457323/reviews)** |
| Number of ratings | **1.4K** | 45 |
| Positive reviews | 26.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 130 MB | 84 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 17+ |
| Developer | [KHN Solutions Inc](https://appshunter.io/developer/553347501) | [Greysun Technologies Inc.](https://appshunter.io/developer/1704392732) |

## What reviewers say

### BACtrack

[App page](https://appshunter.io/ios/app/bactrack/id553347498)

Turn your iPhone into a breathalyzer with this app. It connects wirelessly to compatible devices to estimate your Blood Alcohol Content (BAC) and provides safety information. Track your drinking habits and understand how alcohol affects your body to make informed decisions.

**Highlights:** Estimate Blood Alcohol Content (BAC), Connects wirelessly via Bluetooth, Displays BAC results on iPhone, Provides safety information on impairment, ZeroLine® estimates BAC return to 0.00%, Save BAC readings to track habits, Integrates with Apple Health

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BACtrack+ | $39.99 | per year |

**What reviewers like**

- 💡 Helpful yardstick
- 🚀 Works as expected
- 👍 Great product

**What reviewers complain about**

- 🐛 App crashes or doesn't work
- 🔋 Battery issues
- 🔒 Privacy concerns with required account
- 👎 App updates make it worse
- 👎 Inconsistent or inaccurate readings

**Reported bugs**

- App won't get past registration screen
- Firmware update issues
- Bluetooth connectivity problems
- App crashes or freezes

**Requested features**

- Bring back Apple Watch app
- More drink options
- Countdown timer for blowing
- Ability to add custom drinks
- Battery level indicator


### GreyBand

[App page](https://appshunter.io/ios/app/greyband/id6463457323)

This app syncs with breathalyzers to monitor your blood alcohol content. It helps you build healthier habits and improve your social experiences by keeping you informed about your levels.

**Highlights:** Connects with breathalyzers, Tracks blood alcohol content, Builds healthy habits, Enhances night out experiences, Provides safety information

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is BACtrack free?

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

### Is GreyBand free?

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

### Which has better reviews, BACtrack or GreyBand?

GreyBand is rated higher. BACtrack averages 4.1 out of 5 from 1.4K ratings, while GreyBand averages 5.0 from 45 ratings.

### Do BACtrack or GreyBand have ads?

Neither BACtrack nor GreyBand shows ads.

### Which is updated more often, BACtrack or GreyBand?

BACtrack ships an update every 2 weeks, and GreyBand every 3 weeks. Most recently, BACtrack was updated on September 23, 2026 and GreyBand on September 9, 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.*