# Bat Detector vs OpenBat

The clearest difference is update cadence: OpenBat at every 4 days against Bat Detector's monthly. Bat Detector's advantage is iOS requirement (15 vs 18.0). 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.

Bat Detector ships an update monthly, OpenBat every 4 days. The most recent releases landed on September 15, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Bat Detector | OpenBat |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bat-detector/id6504186190/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free | — |
| Size | 136 MB | 52 MB |
| Requires iOS | **15** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 17+ |
| Developer | [Phil Atkin](https://appshunter.io/developer/1751268739) | [Niall Bell](https://appshunter.io/developer/1884697412) |

## What reviewers say

### Bat Detector

[App page](https://appshunter.io/ios/app/bat-detector/id6504186190)

Listen to and record the ultrasonic sounds of bats using your iPhone or iPad. This app reveals bat acoustics through heterodyne detection and 16x time expansion, making their calls audible and musical. It also offers full-spectrum recordings triggered by bat sounds.

**Highlights:** Heterodyne bat detection without manual tuning, 16x time expansion for audible bat sounds, Full-spectrum recordings triggered by bat sounds, Real-time sound demodulation, Preserves harmonic relationships in bat calls, Supports European and global microbats

**In-app purchases:** none


### OpenBat

[App page](https://appshunter.io/ios/app/openbat/id6787886621)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bat Detector free?

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

### Is OpenBat free?

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

### Do Bat Detector or OpenBat have ads?

Neither Bat Detector nor OpenBat shows ads.

### Which is updated more often, Bat Detector or OpenBat?

Bat Detector ships an update monthly, and OpenBat every 4 days. Most recently, Bat Detector was updated on September 15, 2026 and OpenBat on October 1, 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.*