BACtrack vs GreyBand
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BACtrack
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.
- 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
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Transform your iPhone into a breathalyzer with BACtrack®! Enjoy a modern design, easier navigation, and a smoother overall experience with a lot more updates to come. Easily estimate your BAC (Blood Alcohol Content) with a BACtrack smartphone breathalyzer and this free companion app. Designed by BACtrack, the leading manufacturer of personal and professional breathalyzers, this app connects to your device wirelessly via Bluetooth®, and allows you to measure your alcohol level with the award-winning BACtrack Mobile, BACtrack C6, and BACtrack C8 smart breathalyzers. BACtrack makes it easy to understand how alcohol affects the body, empowering you to make smarter, more informed decisions. In this version of the BACtrack app: • Pairing is automatic once you turn on your BACtrack and open the app; results are communicated via Bluetooth® to display on your iPhone. • Quickly and easily estimate your BAC and read safety information about corresponding impairment levels. • ZeroLine® estimates when your BAC will return to 0.00%. • Saved BAC readings allow you to get a clear picture of your drinking habits. • Track your BAC data using Apple Health. The most trusted brand of breathalyzers on the market, BACtrack has been featured in Fast Company and CNET. Download now and test your BAC anywhere, anytime!
GreyBand
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.
- Connects with breathalyzers
- Tracks blood alcohol content
- Builds healthy habits
- Enhances night out experiences
- Provides safety information
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GreyBand connects with breathalyzers to track your levels, build healthy habits, and enhance your night out. Stay informed, stay safe, and have fun.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | BACtrack | GreyBand |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (1.4K ratings) | 5.0 (45 ratings) — better |
| Positive reviews | 26.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 1.4K — better | 45 |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 130 MB | 84 MB |
| Age rating | 17+ | 17+ |
| Developer | KHN Solutions Inc | Greysun Technologies Inc. |
Customer experience
BACtrack
GreyBand
Bugs and requests
BACtrack
Reported bugs
4 issues- App won't get past registration screen
- Firmware update issues
- Bluetooth connectivity problems
- App crashes or freezes
Requested features
6 requests- Bring back Apple Watch app
- More drink options
- Countdown timer for blowing
- Ability to add custom drinks
- Battery level indicator
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- Improved history tracking and data management
GreyBand
Not enough reviews yet to summarise bugs or requests.
In-app purchases
BACtrack
- BACtrack+1 Month trial$39.991 Year
GreyBand
No in-app purchases
Questions
Is BACtrack free?
Is GreyBand free?
Which has better reviews, BACtrack or GreyBand?
Do BACtrack or GreyBand have ads?
Which is updated more often, BACtrack or GreyBand?
Other comparisons
