# Penometer vs B3 Coaching

The clearest difference is update cadence: Penometer at every 3 weeks against B3 Coaching's every 18 months. Penometer also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Penometer sells 3 in-app purchases, starting at $4.99 per month and B3 Coaching sells 1 in-app purchase, starting at $350.00 per month. Whichever you choose, the download price is not the number that matters.

Penometer ships an update every 3 weeks, B3 Coaching every 18 months. The most recent releases landed on October 8, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Penometer | B3 Coaching |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | — |
| Update frequency | **Every 3 weeks** | Every 18 months |
| Monetization | Freemium | — |
| Size | 16 MB | 50 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 17+ | 17+ |
| Developer | [TotalContent](https://appshunter.io/developer/1542541643) | [Bryce MacArthur](https://appshunter.io/developer/1720552006) |

## What reviewers say

### Penometer

[App page](https://appshunter.io/ios/app/penometer/id1561621238)

Measure and track your body size metrics over time. Compare your measurements to national and global averages, and gain insights with a built-in analysis tool. Your data is kept private and secure.

**Highlights:** Measure length, width, and girth, Track changes over time with graphs, Compare size to global and national averages, Micropenis analysis tool, Private and secure data storage, Unlimited measurement history (Premium), Advanced trend analysis (Premium)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Access | $4.99 | per month |
| Full Access | $29.99 | per year |
| Full Access | $49.99 | one-time |


### B3 Coaching

[App page](https://appshunter.io/ios/app/b3-coaching/id6474073467)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Silver Membership | $350.00 | per month |


## Frequently asked questions

### Is Penometer free?

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

### Is B3 Coaching free?

B3 Coaching is free to download, with in-app purchases available.

### Which is updated more often, Penometer or B3 Coaching?

Penometer ships an update every 3 weeks, and B3 Coaching every 18 months. Most recently, Penometer was updated on October 8, 2026 and B3 Coaching 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.*