# Sensor vs Urolog

The clearest difference is in-app purchases: Sensor at none against Urolog's 2. Sensor also leads on device support (3 vs 1) and iOS requirement (14.3 vs 16.0). Urolog's advantage is update cadence (every 6 weeks vs every 13 months). On price and ads there is nothing between them.

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

Sensor ships an update every 13 months, Urolog every 6 weeks. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Sensor | Urolog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 6 weeks** |
| Size | 626 MB | 53 MB |
| Requires iOS | **14.3** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [Yury Kornev](https://appshunter.io/developer/1236565366) | [Echelon App Limited](https://appshunter.io/developer/1762832611) |

## What reviewers say

### Sensor

[App page](https://appshunter.io/ios/app/sensor/id1665971033)

**Features:** Vision Pro support

**In-app purchases:** none


### Urolog

[App page](https://appshunter.io/ios/app/urolog-bladder-insights/id6754334855)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Sensor free?

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

### Is Urolog free?

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

### Do Sensor or Urolog have ads?

Neither Sensor nor Urolog shows ads.

### Which is updated more often, Sensor or Urolog?

Sensor ships an update every 13 months, and Urolog every 6 weeks. Most recently, Sensor was updated on October 9, 2026 and Urolog on October 5, 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.*