# DevPro: Best Device Security — Phone Lock, Motion Alarm Pro

> Motion-activated security alarm app for mobile devices. (iPhone/iPad app by IIC Innovative International Consulting GmbH & Co. KG.)

- Source: https://appshunter.io/ios/app/devpro-best-device-security/id1352683484 (this page in markdown: same URL + `.md`)
- Developer: [IIC Innovative International Consulting GmbH & Co. KG](https://appshunter.io/developer/1352683483)
- Category: Utilities, Travel
- Price: $0.99
- Rating: 3.75/5 from 61 App Store ratings · 104 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 10 MB
- Languages: English, German
- Released: 2018-03-07
- Data updated: 2026-06-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/devpro-best-device-security/id1352683484/reviews.md

## What is DevPro?

DevPro is the most reliable security APP to protect against unnoticed movement of your mobile devices. We detect every movement - even in the background. Reliable, secure and energy-saving.
It's an Anti-Theft APP and can be activated extremely quickly with a single wipe or press of a widget. It registers movement with an adjustable sensitivity and triggers an audible alarm to deter thieves. Protect your phone or pad. You can use pre-defined alarms, add external .wav files or create your own custom sounds. Give robbers no chance to steal your device. 
DevPro works with many different operating system versions.
The alarm function is triggered by movement of the device. No Internet connection is required. DevPro is the stand alone bodyguard for your device. This APP is the perfect security app to prevent others from touching the device and taking away . 

We invested a lot of time to find a reliable way to safe your phone or pad, no one can bypass the security features to deactivate the alarm. We use Touch-ID or Face-ID to unlock. No separate code required.

A few more unique functions:

•    Adjustable alarm triggering sensitivity
•    Adjustable alarm volume
•    Directly accessible via widget
•    Individual alarms and voice messages
•    Preset scenes can be defined (office, hotel, outdoor,...)
•    Active in the background

To enable you to start with low upfront activities, we integrated a lot of predefined adjustments you can modify for your own need. 
To activate the motion detection we want to be fast. You can define a number of presets like school, hotel, home, library,... to get the right configuration of sound, loudness, sensitivity and pre-alert at the right situation. 

We track the location in the background. This enables you to put the device in sleep mode and keep the motion detection still alive. 

DevPro - the idea - why?
We travel a lot and were scared about the situations in hotels and during fairs. We could not leave our devices on a table or chair while we where absent. To fetch some food from the buffet during breakfast was not so easy for example. Thats why we decided to develop a 100% reliable security system based on the motion detection. 

Why Presets?
Important for us, was to take care on different situations with different needs on sensitivity, loudness and alarm sound. We wanted to get raw motion alert reachable by a single push. Thats why we enabled "Presets" for different situations. 

Why Widgets?
Sometimes speed is important if you want to be reliable securing your device. We enabled to use widgets to reach the security mode extremely fast. 

We developed a fully reliable easy to reach motion detection solution for iPad and iPhone. Stay secure during trip or at school, restaurant, bars,... The configuration of sound, sensitivity, alarm type helps to take care on every different situation where you want to protect your device - DevPro!

## Key features

- Motion detection with adjustable sensitivity
- Audible alarm to deter thieves
- Quick activation via widget
- Customizable alarm sounds and voice messages
- Background operation
- Touch-ID/Face-ID unlock

## What do users think of DevPro?

Overall sentiment: negative

**Pros**

- ✅ Effective motion detection alarm when working properly
- 👍 Easy to use and simple setup
- 🎨 Polished and attractive design
- ⚡ Quick widget access for activation
- 🔒 Good security concept for device protection

**Cons**

- 🐛 App frequently doesn't work or stops functioning
- 🔋 Requires GPS/location services unnecessarily draining battery
- ⚠️ No biometric authentication to disable alarm
- 🔊 Alarm only vibrates, sound doesn't trigger reliably
- ❌ No customization options available
- 📵 Outdated and not updated for current iOS versions
- 🚫 Anyone can easily cancel the alarm
- 💬 Poor customer support and unresponsive to emails
- 🎯 Sensitivity settings too high or ineffective
- 🤔 Suspicious fake positive reviews detected

**Commonly reported bugs**

- App stops working after a few hours
- Alarm doesn't sound when phone is moved
- Widget preset activation doesn't trigger motion detection
- Location access permission issues
- Incompatible with iOS 16 and newer versions
- App stuck at version 1.90 without updates
- Face ID unlock doesn't prevent alarm from sounding
- Plus button in UI redirects to App Store instead of functioning
- App crashes or becomes unresponsive after download

**Most requested features**

- Adjustable delay/grace period before alarm triggers
- Biometric authentication (Face ID/Touch ID) required to disable alarm
- Optional GPS - make location services not mandatory
- Improved alarm sound volume and reliability
- Customizable settings and presets
- Motion detection while app is in use
- Selfie capture on unauthorized access attempts
- Headphone/charger unplugging detection
- Clap detection to disarm alarm

## Recent user reviews (10 of 104)

All indexed reviews: https://appshunter.io/ios/app/devpro-best-device-security/id1352683484/reviews.md

### 5/5 — 3 years ago. I wasn’t happy with this app. Read my previous review

*2023-07-19, version 1.97*

Now I just reinstalled again. Location access seems to have been fixed now. Love this app now. 
Thanks for this safety app.

### 1/5 — Working no more

*2022-10-26, version 1.90*

It’s 2022 and this App doesn’t work anymore.
I activate it but there is no warning or sounds when the iPhone is moved.

### 1/5 — 右下角的'+'号不能点击，一点击就跳转app store

*2022-10-14, version 1.90*

如题

### 1/5 — Leider nicht Aktuell

*2022-10-01, version 1.90*

Ist leider bei der Version 1.90 stehen geblieben.
Ich habe es gekauft und kann nur die Grundversion nutzen. Nichts ist einstellbar und der Leistungsumfang, der versprochen wurde, wird nicht geliefert. Aussage des Supports, das würde am IOS 16 liegen, hat mir auch nicht geholfen. So für mich nicht nutzbar und rausgeschmissenes Geld.

### 1/5 — Keine Leistung

*2022-07-25, version 1.90*

Nach dem Download passiert einfach garnichts. Der Alarm funktioniert nicht.

### 1/5 — Doesn’t work

*2022-07-07, version 1.90*

Needs an update. This app doesn’t work anymore.

### 1/5 — Null Sterne

*2022-07-04, version 1.90*

Keine Antwort auf meine Mail. Keine Einstellmöglichkeiten

### 1/5 — Vorsicht

*2022-06-28, version 1.90*

Nach Download und GPS-Freigabe tut sich nichts. Keine Voreinstellungen möglich, keine Alarmaktivierung möglich. Iphone 13Pro mit iOS 15.5. am 28.06.2022.

### 1/5 — Not good

*2021-10-26, version 1.90*

Paid for the app and doesn’t seem to have any functionality at all…!!  There seems to be no way to change from the ‘Standard’ preset. The only interaction available is to lock the device via a sliding switch. But I have no idea how to subsequently unlock the device if I did activate the lock?? There seems to be no way to customise the app, even though this is widely advertised in the developer’s info page….

### 1/5 — Bug

*2021-09-24, version 1.90*

Elle ne fonctionne plus

## Frequently asked questions about DevPro

### What does DevPro do?

DevPro is a security app designed to protect your mobile devices from unnoticed movement. It detects any motion, even when the app is running in the background, and triggers an audible alarm to deter potential thieves. It offers a reliable and energy-saving solution for device security.

### How does the motion alarm work?

The alarm function is triggered by the movement of your device. You can adjust the sensitivity to suit your needs, and the app will sound an alarm to alert you and deter anyone attempting to move or steal your device. The alarm can be activated quickly using a widget.

### Is DevPro free to use?

Based on the provided information, DevPro is a free application. There are no mentions of subscription fees, in-app purchases, or advertisements, indicating it is available at no cost to the user.

### What devices is DevPro compatible with?

DevPro works with many different operating system versions for both iPads and iPhones. The app is designed to be a standalone bodyguard for your device, requiring no internet connection to function.

### Can I customize the alarm sounds?

Yes, you can customize the alarm sounds. The app allows you to use pre-defined alarms, add external .wav files, or create your own custom sounds and voice messages. You can also adjust the alarm volume and define presets for different situations.

## Version history (last 5 releases)

### 2.0 — 2026-06-06

New layout and actual release !

### 1.97 — 2022-12-20

Troubleshooting and adaptation to iOS 16

### 1.90 — 2021-09-21

Now also reacts to interruption of the loading process. Additional adjustable activation time built in.

### 1.85 — 2021-04-08

Minor optimisations. Modification and clarification of the description.

### 1.80 — 2020-09-28

Now record your own fancy alert sound. Ready for the new OS releases.

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## More apps by IIC Innovative International Consulting GmbH & Co. KG

- [POI MAP - Your Private Places](https://appshunter.io/ios/app/poi-map-your-private-places/id1412547195)
- [DevPro Light: Device Security](https://appshunter.io/ios/app/devpro-light-device-security/id1581108628)

All apps by IIC Innovative International Consulting GmbH & Co. KG: https://appshunter.io/developer/1352683483

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-21.*