# Bird ID vs D2I

The clearest difference is in-app purchases: D2I at none against Bird ID's 9. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Bird ID sells 7 in-app purchases, starting at $6.99 per month. D2I asks for nothing beyond the download.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on September 28, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Bird ID | D2I |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (91 ratings)](https://appshunter.io/ios/app/bird-id/id1450002184/reviews)** | — |
| Number of ratings | **91** | — |
| Positive reviews | 28.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 109 MB | 38 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [VaultID](https://appshunter.io/developer/1411398300) | [Takaoka Anestesia](https://appshunter.io/developer/1592570656) |

## What reviewers say

### Bird ID

[App page](https://appshunter.io/ios/app/bird-id/id1450002184)

This app provides a secure cloud-based digital certificate for signing documents with legal validity. It offers enhanced security features, transaction history, and device management for a convenient digital experience.

**Highlights:** Sign documents with legal validity, Cloud-based digital certificate, Secure OTP generation, Manage Bird ID accounts, View connected devices, Transaction history tracking, Purchase credits in-app

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mensal | $6.99 | per month |
| Plano Padrão | $6.99 | per month |
| Anual | $29.99 | per year |
| Plano Padrão | $29.99 | per year |
| 1 mês | $9.99 | one-time |
| 3 meses | $17.99 | one-time |
| 1 ano | $29.99 | one-time |


### D2I

[App page](https://appshunter.io/ios/app/d2i/id1592570654)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bird ID free?

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

### Is D2I free?

D2I is free to download, with no in-app purchases.

### Do Bird ID or D2I have ads?

Neither Bird ID nor D2I shows ads.

### Which is updated more often, Bird ID or D2I?

Bird ID ships an update fortnightly, and D2I fortnightly. Most recently, Bird ID was updated on September 28, 2026 and D2I on September 26, 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.*