# BACtrack vs PROOF +

The clearest difference is rating: PROOF + at 4.6 against BACtrack's 4.1. PROOF + also leads on in-app purchases (none vs 1) and review sentiment (50% vs 27%). BACtrack's advantage is ratings volume (1.4K vs 103). On price, update cadence and ads there is nothing between them.

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

PROOF + holds the better App Store score, 4.6 against 4.1. That said, the two scores are not equally well evidenced: BACtrack has 1.4K ratings behind it against 103, 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 50% of PROOF +'s.

BACtrack ships an update every 2 weeks, PROOF + every 10 days. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | BACtrack | PROOF + |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (1.4K ratings)](https://appshunter.io/ios/app/bactrack/id553347498/reviews) | **[4.6 (103 ratings)](https://appshunter.io/ios/app/proof-plus/id1471553656/reviews)** |
| Number of ratings | **1.4K** | 103 |
| Positive reviews | 26.9% of reviews | **50.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 130 MB | 423 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [KHN Solutions Inc](https://appshunter.io/developer/553347501) | [RecoveryTrek LLC](https://appshunter.io/developer/961222126) |

## 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


### PROOF +

[App page](https://appshunter.io/ios/app/proof-plus/id1471553656)

This app offers a patented mobile solution for drug and alcohol testing, simplifying specimen collection. It integrates with existing platforms or works independently, making testing easy, cost-effective, and reducing errors.

**Highlights:** Patented mobile testing solution, Simplifies specimen collection, Reduces scheduling conflicts, Integrates with existing platforms, Stand-alone solution option, Cost-effective testing, Reduces issues and errors

**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 PROOF + free?

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

### Which has better reviews, BACtrack or PROOF +?

PROOF + is rated higher. BACtrack averages 4.1 out of 5 from 1.4K ratings, while PROOF + averages 4.6 from 103 ratings.

### Do BACtrack or PROOF + have ads?

Neither BACtrack nor PROOF + shows ads.

### Which is updated more often, BACtrack or PROOF +?

BACtrack ships an update every 2 weeks, and PROOF + every 10 days. Most recently, BACtrack was updated on September 23, 2026 and PROOF + on September 22, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*