# BACtrack vs St. Gregory Alumni

The clearest difference is rating: BACtrack at 4.1 against St. Gregory Alumni's 3.2. BACtrack also leads on update cadence (fortnightly vs every 5 months) and ratings volume (1.4K vs 5). St. Gregory Alumni's advantage is in-app purchases (none vs 1) and review sentiment (50% vs 27%). On price and ads there is nothing between them.

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

BACtrack holds the better App Store score, 4.1 against 3.2. That said, the two scores are not equally well evidenced: BACtrack has 1.4K ratings behind it against 5, so its average is the more settled of the two. Written reviews complicate that: 27% of BACtrack's written reviews are positive against 50% of St. Gregory Alumni's, so the app with the better star average is not the one people write more warmly about.

BACtrack ships an update fortnightly, St. Gregory Alumni every 5 months. The most recent releases landed on October 17, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | BACtrack | St. Gregory Alumni |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (1.4K ratings)](https://appshunter.io/ios/app/bactrack/id553347498/reviews)** | [3.2 (5 ratings)](https://appshunter.io/ios/app/st-gregory-alumni/id1558176147/reviews) |
| Number of ratings | **1.4K** | 5 |
| Positive reviews | 26.9% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 130 MB | 33 MB |
| Requires iOS | 17.6 | **14.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [KHN Solutions Inc](https://appshunter.io/developer/553347501) | [Summit Behavioral Healthcare](https://appshunter.io/developer/1466840881) |

## 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


### St. Gregory Alumni

[App page](https://appshunter.io/ios/app/st-gregory-alumni/id1558176147)

Connect with peers and coaches for support and updates throughout your recovery journey. Access daily inspirations, recovery content, and participate in discussions. Join virtual events and control your shared information within a private community.

**Highlights:** Real-time posts for alumni connection, Daily inspiration messages, Recovery content (videos, podcasts, articles), Discussion forums on recovery topics, Virtual event participation, User-controlled privacy settings

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

**In-app purchases:** none


## Frequently asked questions

### Is BACtrack free?

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

### Is St. Gregory Alumni free?

St. Gregory Alumni is free to download, with no in-app purchases.

### Which has better reviews, BACtrack or St. Gregory Alumni?

BACtrack is rated higher. BACtrack averages 4.1 out of 5 from 1.4K ratings, while St. Gregory Alumni averages 3.2 from 5 ratings.

### Do BACtrack or St. Gregory Alumni have ads?

Neither BACtrack nor St. Gregory Alumni shows ads.

### Which is updated more often, BACtrack or St. Gregory Alumni?

BACtrack ships an update fortnightly, and St. Gregory Alumni every 5 months. Most recently, BACtrack was updated on October 17, 2026 and St. Gregory Alumni on October 6, 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.*