# ByteGuard vs DeviceAI

The clearest difference is price: ByteGuard at Free against DeviceAI's $2.99. ByteGuard also leads on update cadence (weekly vs monthly). DeviceAI's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

ByteGuard is free to download; DeviceAI costs $2.99 up front. ByteGuard sells 3 in-app purchases, starting at $0.99 per month. DeviceAI asks for nothing beyond the download.

ByteGuard ships an update weekly, DeviceAI monthly. The most recent releases landed on September 19, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | ByteGuard | DeviceAI |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/byteguard-password-manager/id6756919439/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Monthly |
| Monetization | Freemium | — |
| Size | 24 MB | 34 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [可文 麦](https://appshunter.io/developer/1863588117) | [Evan Yeoh](https://appshunter.io/developer/873959340) |

## What reviewers say

### ByteGuard

[App page](https://appshunter.io/ios/app/byteguard-password-manager/id6756919439)

Securely manage passwords, generate strong ones, and store sensitive information with zero-knowledge encryption. Includes a built-in authenticator for 2FA codes and supports passkeys for passwordless sign-ins. Offers robust security features and cross-device syncing.

**Highlights:** Zero-knowledge encryption, Password generation and management, Built-in authenticator for 2FA, Passkey support, Secure storage for notes and cards, Security reports and analysis, Cross-device iCloud sync

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $0.99 | per month |
| Yearly Subscription | $5.99 | per year |
| Lifetime Premium | $9.99 | one-time |


### DeviceAI

[App page](https://appshunter.io/ios/app/deviceai/id6760162343)

**In-app purchases:** none


## Frequently asked questions

### Is ByteGuard free?

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

### Is DeviceAI free?

DeviceAI costs $2.99, with no in-app purchases.

### Do ByteGuard or DeviceAI have ads?

Neither ByteGuard nor DeviceAI shows ads.

### Which is updated more often, ByteGuard or DeviceAI?

ByteGuard ships an update weekly, and DeviceAI monthly. Most recently, ByteGuard was updated on September 19, 2026 and DeviceAI on September 20, 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.*