# MSB Vision vs Bat Detector

The clearest difference is in-app purchases: Bat Detector at none against MSB Vision's 1. Bat Detector also leads on update cadence (monthly vs every 15 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MSB Vision sells 1 one-off in-app purchase. Bat Detector asks for nothing beyond the download.

MSB Vision ships an update every 15 months, Bat Detector monthly. The most recent releases landed on October 10, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | MSB Vision | Bat Detector |
| --- | --- | --- |
| 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 | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 15 months | **Monthly** |
| Monetization | — | Free |
| Size | 52 MB | 136 MB |
| Requires iOS | 15.1 | **15** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [TagMango Inc](https://appshunter.io/developer/1611765353) | [Phil Atkin](https://appshunter.io/developer/1751268739) |

## What reviewers say

### MSB Vision

[App page](https://appshunter.io/ios/app/msb-vision/id6447047569)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MSB Vision UK Masterclass! | $4.99 | one-time |


### 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


## Frequently asked questions

### Is MSB Vision free?

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

### Is Bat Detector free?

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

### Do MSB Vision or Bat Detector have ads?

Neither MSB Vision nor Bat Detector shows ads.

### Which is updated more often, MSB Vision or Bat Detector?

MSB Vision ships an update every 15 months, and Bat Detector monthly. Most recently, MSB Vision was updated on October 10, 2026 and Bat Detector on October 2, 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.*