# Security Alarm vs DevPro Light

The clearest difference is ads: DevPro Light at none against Security Alarm's shown. DevPro Light also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Security Alarm's advantage is update cadence (every 3 weeks vs every 29 months). On price and in-app purchases there is nothing between them.

Both are free to download. Security Alarm sells 2 one-off in-app purchases and DevPro Light sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Security Alarm ships an update every 3 weeks, DevPro Light every 29 months. The most recent releases landed on September 11, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Security Alarm | DevPro Light |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (526 ratings)](https://appshunter.io/ios/app/security-alarm-antitheft/id1447621494/reviews)** | — |
| Number of ratings | **526** | — |
| Positive reviews | 54.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 29 months |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 10 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [NileshKumar Rathod](https://appshunter.io/developer/977297771) | [IIC Innovative International Consulting GmbH & Co. KG](https://appshunter.io/developer/1352683483) |

## What reviewers say

### Security Alarm

[App page](https://appshunter.io/ios/app/security-alarm-antitheft/id1447621494)

This app helps protect your phone from unauthorized access by triggering an alarm and capturing a selfie of anyone who tries to touch or take your device. It offers multiple protection modes and advanced features to identify and deter intruders.

**Highlights:** Capture intruder selfies, Motion detection alarm, Power cable unplug alarm, Headset unplug alarm, Pocket mode alarm, Passcode and biometric lock, Background alarm operation

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove All Ads | $3.99 | one-time |
| Full Version + Remove All Ads | $5.99 | one-time |

**What reviewers like**

- 👍 Good app
- 🚀 Loud alarm
- 🔒 Catches intruders

**What reviewers complain about**

- 🐛 Doesn't work as expected
- 💰 Paid features
- 🔋 Battery drain
- 🔒 Doesn't secure phone
- 🔕 Annoying alarm

**Reported bugs**

- Alarm goes off randomly
- Can't turn off alarm
- App crashes
- Doesn't detect intruders
- Incompatible with newer devices

**Requested features**

- Delay alarm to allow disabling
- Link photos to email
- Improve headphone detection
- Add timer to unlock
- Improve low light photo quality


### 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 Security Alarm free?

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

### Is DevPro Light free?

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

### Do Security Alarm or DevPro Light have ads?

Security Alarm shows ads; DevPro Light does not.

### Which is updated more often, Security Alarm or DevPro Light?

Security Alarm ships an update every 3 weeks, and DevPro Light every 29 months. Most recently, Security Alarm was updated on September 11, 2026 and DevPro Light on September 22, 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.*