# Deom Mail vs LockBox

The clearest difference is in-app purchases: Deom Mail at none against LockBox's 3. Deom Mail also leads on iOS requirement (13.0 vs 15.0). LockBox's advantage is update cadence (every 8 days vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. LockBox sells 3 one-off in-app purchases. Deom Mail asks for nothing beyond the download.

Deom Mail ships an update every 3 months, LockBox every 8 days. The most recent releases landed on October 19, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Deom Mail | LockBox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 8 days** |
| Size | 38 MB | 92 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [SLNEE.CO](https://appshunter.io/developer/1669434630) | [长松 孙](https://appshunter.io/developer/1626925849) |

## What reviewers say

### Deom Mail

[App page](https://appshunter.io/ios/app/deom-mail/id6499510996)

**Features:** macOS Compatibility

**In-app purchases:** none


### LockBox

[App page](https://appshunter.io/ios/app/lockbox-encrypted-video-player/id6751835978)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 coin | $1.99 | one-time |
| 10000 coin | $17.99 | one-time |
| 100000 coin | $149.99 | one-time |


## Frequently asked questions

### Is Deom Mail free?

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

### Is LockBox free?

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

### Do Deom Mail or LockBox have ads?

Neither Deom Mail nor LockBox shows ads.

### Which is updated more often, Deom Mail or LockBox?

Deom Mail ships an update every 3 months, and LockBox every 8 days. Most recently, Deom Mail was updated on October 19, 2026 and LockBox on October 12, 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.*