# ERA Vault Alarm System vs DevPro Light

The clearest difference is in-app purchases: ERA Vault Alarm System at none against DevPro Light's 1. ERA Vault Alarm System also leads on update cadence (every 10 months vs every 29 months) and iOS requirement (9.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. DevPro Light sells 1 one-off in-app purchase. ERA Vault Alarm System asks for nothing beyond the download.

ERA Vault Alarm System ships an update every 10 months, DevPro Light every 29 months. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ERA Vault Alarm System | DevPro Light |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 29 months |
| Size | 77 MB | 10 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ERA HOME SECURITY LIMITED](https://appshunter.io/developer/1048919140) | [IIC Innovative International Consulting GmbH & Co. KG](https://appshunter.io/developer/1352683483) |

## What reviewers say

### ERA Vault Alarm System

[App page](https://appshunter.io/ios/app/era-vault-alarm-system/id1160042484)

**Features:** macOS Compatibility

**In-app purchases:** none


### DevPro Light

[App page](https://appshunter.io/ios/app/devpro-light-device-security/id1581108628)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DevPro – Pro Version \| Unlock Pro | $1.99 | one-time |


## Frequently asked questions

### Is ERA Vault Alarm System free?

ERA Vault Alarm System is free to download, with no in-app purchases.

### Is DevPro Light free?

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

### Do ERA Vault Alarm System or DevPro Light have ads?

Neither ERA Vault Alarm System nor DevPro Light shows ads.

### Which is updated more often, ERA Vault Alarm System or DevPro Light?

ERA Vault Alarm System ships an update every 10 months, and DevPro Light every 29 months. Most recently, ERA Vault Alarm System was updated on October 10, 2026 and DevPro Light on October 8, 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.*