# iSober vs Black Line Athletic Strength

The clearest difference is update cadence: Black Line Athletic Strength at every 3 weeks against iSober's every 3 months. Black Line Athletic Strength also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price, ads and in-app purchases there is nothing between them.

Both are free to download. iSober sells 3 in-app purchases, starting at $2.99 per month and Black Line Athletic Strength sells 1 in-app purchase, starting at $174.99 per month. Whichever you choose, the download price is not the number that matters.

iSober ships an update every 3 months, Black Line Athletic Strength every 3 weeks. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iSober | Black Line Athletic Strength |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Size | 26 MB | 56 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Alcohol Breathalysers Pty Ltd](https://appshunter.io/developer/1457499082) | [Kai Hirst](https://appshunter.io/developer/1889501014) |

## What reviewers say

### iSober

[App page](https://appshunter.io/ios/app/isober/id1457499083)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly subscription | $2.99 | per month |
| Semi-annual subscription | $17.99 | per 6 months |
| Annual subscription | $32.99 | per year |


### Black Line Athletic Strength

[App page](https://appshunter.io/ios/app/black-line-athletic-strength/id6761418613)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Coaching | $174.99 | per month |


## Frequently asked questions

### Is iSober free?

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

### Is Black Line Athletic Strength free?

Black Line Athletic Strength is free to download, with in-app purchases available.

### Do iSober or Black Line Athletic Strength have ads?

Neither iSober nor Black Line Athletic Strength shows ads.

### Which is updated more often, iSober or Black Line Athletic Strength?

iSober ships an update every 3 months, and Black Line Athletic Strength every 3 weeks. Most recently, iSober was updated on November 2, 2026 and Black Line Athletic Strength on October 31, 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.*