# BACtrack vs DoseCalendar

The clearest difference is ads: BACtrack at none against DoseCalendar's shown. DoseCalendar's advantage is update cadence (weekly vs every 2 weeks) and iOS requirement (15.1 vs 17.6). On price, in-app purchases 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 and DoseCalendar sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

BACtrack ships an update every 2 weeks, DoseCalendar weekly. The most recent releases landed on September 29, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | BACtrack | DoseCalendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (1.4K ratings)](https://appshunter.io/ios/app/bactrack/id553347498/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 26.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 130 MB | 44 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 12+ |
| Developer | [KHN Solutions Inc](https://appshunter.io/developer/553347501) | [Tony AI](https://appshunter.io/developer/1771887878) |

## 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


### DoseCalendar

[App page](https://appshunter.io/ios/app/dosecalendar/id6789894620)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DoseCalendar Plus Monthly | $4.99 | per month |
| DoseCalendar Plus Annual | $29.99 | per year |


## Frequently asked questions

### Is BACtrack free?

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

### Is DoseCalendar free?

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

### Do BACtrack or DoseCalendar have ads?

DoseCalendar shows ads; BACtrack does not.

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

BACtrack ships an update every 2 weeks, and DoseCalendar weekly. Most recently, BACtrack was updated on September 29, 2026 and DoseCalendar on September 18, 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.*