# OBSERV 320 vs Paruresis

The clearest difference is in-app purchases: OBSERV 320 at none against Paruresis's 2. Paruresis's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Paruresis sells 2 in-app purchases, starting at $9.99 per month. OBSERV 320 asks for nothing beyond the download.

OBSERV 320 ships an update every 2 weeks, Paruresis every 3 weeks. The most recent releases landed on September 21, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | OBSERV 320 | Paruresis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 103 MB | 58 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [InnoFaith beauty sciences](https://appshunter.io/developer/583003631) | [Echelon App Limited](https://appshunter.io/developer/1762832611) |

## What reviewers say

### OBSERV 320

[App page](https://appshunter.io/ios/app/observ-320/id1438612246)

**In-app purchases:** none


### Paruresis

[App page](https://appshunter.io/ios/app/paruresis-shy-bladder-help/id6761784500)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Paruresis Premium (Monthly) | $9.99 | per month |
| Paruresis Premium (Yearly) | $59.99 | per year |


## Frequently asked questions

### Is OBSERV 320 free?

OBSERV 320 is free to download, with no in-app purchases.

### Is Paruresis free?

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

### Do OBSERV 320 or Paruresis have ads?

Neither OBSERV 320 nor Paruresis shows ads.

### Which is updated more often, OBSERV 320 or Paruresis?

OBSERV 320 ships an update every 2 weeks, and Paruresis every 3 weeks. Most recently, OBSERV 320 was updated on September 21, 2026 and Paruresis on September 26, 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.*