# eFlightBook vs Bird Identifier

The clearest difference is in-app purchases: eFlightBook at none against Bird Identifier's 2. eFlightBook also leads on iOS requirement (14.2 vs 17.0). Bird Identifier's advantage is update cadence (every 3 days vs fortnightly). On price, ads and device support there is nothing between them.

Both are free to download. Bird Identifier sells 2 in-app purchases, starting at $4.99 per 7 days. eFlightBook asks for nothing beyond the download.

eFlightBook ships an update fortnightly, Bird Identifier every 3 days. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | eFlightBook | Bird Identifier |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 101 MB | 19 MB |
| Requires iOS | **14.2** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [PH-Informatik](https://appshunter.io/developer/595299933) | [JOSHUA ERIC BISHOP](https://appshunter.io/developer/1812726569) |

## What reviewers say

### eFlightBook

[App page](https://appshunter.io/ios/app/eflightbook/id6476969610)

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

**In-app purchases:** none


### Bird Identifier

[App page](https://appshunter.io/ios/app/bird-identifier-birdlens/id6747587399)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BirdLens Pro (Weekly) | $4.99 | per 7 days |
| BirdLens Pro (Yearly) | $24.99 | per year |


## Frequently asked questions

### Is eFlightBook free?

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

### Is Bird Identifier free?

Bird Identifier is free to download, with in-app purchases available.

### Do eFlightBook or Bird Identifier have ads?

Neither eFlightBook nor Bird Identifier shows ads.

### Which is updated more often, eFlightBook or Bird Identifier?

eFlightBook ships an update fortnightly, and Bird Identifier every 3 days. Most recently, eFlightBook was updated on October 26, 2026 and Bird Identifier on October 25, 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.*