# Otopert vs Bulur Sensor

The clearest difference is update cadence: Bulur Sensor at every 3 days against Otopert's every 4 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Otopert ships an update every 4 weeks, Bulur Sensor every 3 days. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Otopert | Bulur Sensor |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 3 days** |
| Size | 8 MB | 2 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [BASAK KOSE](https://appshunter.io/developer/1818205323) | [ugur yenice](https://appshunter.io/developer/1863522707) |

## What reviewers say

### Otopert

[App page](https://appshunter.io/ios/app/otopert/id6746734025)

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

**In-app purchases:** none


### Bulur Sensor

[App page](https://appshunter.io/ios/app/bulur-sensor/id6756895770)

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

**In-app purchases:** none


## Frequently asked questions

### Is Otopert free?

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

### Is Bulur Sensor free?

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

### Do Otopert or Bulur Sensor have ads?

Neither Otopert nor Bulur Sensor shows ads.

### Which is updated more often, Otopert or Bulur Sensor?

Otopert ships an update every 4 weeks, and Bulur Sensor every 3 days. Most recently, Otopert was updated on November 8, 2026 and Bulur Sensor on November 13, 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.*