# Bird Sound Identifier vs Flex LMS

The clearest difference is price: Flex LMS at Free against Bird Sound Identifier's $2.99. Flex LMS also leads on update cadence (every 3 weeks vs every 6 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Flex LMS is free to download; Bird Sound Identifier costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Bird Sound Identifier ships an update every 6 months, Flex LMS every 3 weeks. The most recent releases landed on October 25, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | Bird Sound Identifier | Flex LMS |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.9 (190 ratings)](https://appshunter.io/ios/app/bird-sound-identifier/id1541890005/reviews)** | — |
| Number of ratings | **190** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Paid | — |
| Size | 154 MB | 57 MB |
| Requires iOS | 16.4 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Rafael Francisco](https://appshunter.io/developer/1516302666) | [Insight Academy PTY Ltd](https://appshunter.io/developer/1525363373) |

## What reviewers say

### Bird Sound Identifier

[App page](https://appshunter.io/ios/app/bird-sound-identifier/id1541890005)

Identify bird species by their calls using advanced on-device AI. Access detailed information about each species, including conservation status, directly from Wikipedia. Enjoy a clean, intuitive interface for seamless bird sound recognition.

**Highlights:** Identify birds by sound, Offline on-device inference, Supports 6362 species, Species information from Wikipedia, Conservation status included, Simple user interface

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

**In-app purchases:** none


### Flex LMS

[App page](https://appshunter.io/ios/app/flex-lms/id1612423243)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bird Sound Identifier free?

Bird Sound Identifier costs $2.99, with no in-app purchases.

### Is Flex LMS free?

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

### Do Bird Sound Identifier or Flex LMS have ads?

Neither Bird Sound Identifier nor Flex LMS shows ads.

### Which is updated more often, Bird Sound Identifier or Flex LMS?

Bird Sound Identifier ships an update every 6 months, and Flex LMS every 3 weeks. Most recently, Bird Sound Identifier was updated on October 25, 2026 and Flex LMS on October 23, 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.*