# Birds Complete Reference Guide vs A320 system pro

The clearest difference is price: Birds Complete Reference Guide at Free against A320 system pro's $0.99. Birds Complete Reference Guide also leads on iOS requirement (12.0 vs 14.0.0). A320 system pro's advantage is in-app purchases (none vs 1). On ads and device support there is nothing between them.

Birds Complete Reference Guide is free to download; A320 system pro costs $0.99 up front. Birds Complete Reference Guide sells 1 one-off in-app purchase. A320 system pro asks for nothing beyond the download.

## The numbers

| Metric | Birds Complete Reference Guide | A320 system pro |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/birds-complete-reference-guide/id1363773995/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 5 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 171 MB | 43 MB |
| Requires iOS | **12.0** | 14.0.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Faisal Akhtar](https://appshunter.io/developer/1783643697) | [Osama Nabel](https://appshunter.io/developer/6775554419) |

## What reviewers say

### Birds Complete Reference Guide

[App page](https://appshunter.io/ios/app/birds-complete-reference-guide/id1363773995)

Explore a comprehensive guide to over 11,400 bird species, featuring high-quality songs, calls, and detailed information. Organize your findings with personal lists and access external resources like Wikipedia for deeper insights. This app helps you manage and learn about birds both online and offline.

**Highlights:** 11,400+ bird species coverage, High-quality bird songs and calls, Offline access to bird data, Search by English or Scientific name, Personalized favorite and finding lists, Links to Wikipedia, Avibase, and Ebird

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Advertisements | $0.99 | one-time |


### A320 system pro

[App page](https://appshunter.io/ios/app/a320-system-pro/id6794749230)

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

**In-app purchases:** none


## Frequently asked questions

### Is Birds Complete Reference Guide free?

Birds Complete Reference Guide is free to download, with in-app purchases available.

### Is A320 system pro free?

A320 system pro costs $0.99, with no in-app purchases.

### Do Birds Complete Reference Guide or A320 system pro have ads?

Both Birds Complete Reference Guide and A320 system pro show ads.

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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.*