Comparison

Alarmhandler Sensor vs DevPro Light

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Alarmhandler Sensor

Transform old phones into a cohesive security system. Integrate SMS alarms, IP cameras, and existing devices into one controllable platform. Offers affordable, DIY security solutions.

Highlights
  • Integrates SMS alarm systems
  • Connects IP cameras
  • Utilizes old phones as sensors
  • Unified control via one app
  • DIY security system
Features
Read full description

Alarmhandler is like no other security system you've seen. It integrates SMS based alarm systems, IP cameras, and old phones of any make into a cohesive alarm system controlled by one app. Do you change phone regularly, then you may have old phones collecting dust? Why not put them into use using the Alarmhandler security system! The phone needs to be connected to the Internet via Wifi or GSM. Make sure that the phone is connected permanently to power and has a stable position using a phone holder of some sort. How to get started: 1) Download the Alarmhandler Sensor app on your old device and launch it - you should see a QR code 2) Download the normal Alarmhandler app on your regular phone 3) On the home screen, tap + bottom right to add a sensor of type 'Old phone' 4) Tap the scan icon to scan the QR code shown on the old phone in the sensor app 5) Finally, tap the Start button in the sensor app to launch camera surveillance Alarmhandler is built by a small team dedicated to bring security that everyone can afford. We publish frequent updates and would love your feedback. Get in touch via our homepage alarmhandler.com, our Facebook page, or tweet us @alarmhandler

About

DevPro Light

Features
Read full description

DevPro – your personal device protection and power-nap alarm. Whether you’re on the train, at the library, in a café, or at the office: Set your iPhone down, activate DevPro—and relax. The highly sensitive motion sensor monitors your device and immediately triggers a loud alarm as soon as someone touches or takes it away. This lets you take a nap in public without losing sight of your device. Here’s why users love DevPro: • Motion Alarm – Responds reliably to any movement. You set the sensitivity yourself. • Power Nap Timer – Ready-made presets for power naps, afternoon naps, and restorative sleep. Wakes you up after your nap. • Loud siren – Scares off potential thieves and alerts you immediately. • Custom alarm sounds – Choose from the DevPro library, record your own sounds, or use your music. • Presets – Save your favorite settings and activate protection with a single tap. • Widget – Activate the alarm in a flash from the home screen. Get started for free – Pro without a subscription. DevPro is free. Unlock all premium features with a one-time payment – no subscription, no hidden costs. Protect your device. Sleep soundly. Download DevPro today.

Screenshots

Alarmhandler Sensor3 screens
DevPro Light4 screens

Verdict

The call

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

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. DevPro Light sells 1 one-off in-app purchase. Alarmhandler Sensor asks for nothing beyond the download.

UpkeepUpdate frequency

Alarmhandler Sensor ships an update every 34 months, DevPro Light every 29 months. The most recent releases landed on September 8, 2026 and September 22, 2026 respectively.

Scorecard2 real differences · 8 level
Alarmhandler Sensor versus DevPro Light: the parameters behind the verdict, then further details
ParameterAlarmhandler SensorDevPro Light
PriceFreeFree
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 34 monthsEvery 29 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS9.0 — better15.0
Further details — not scored
Size7 MB10 MB
Age rating4+4+
DeveloperCompelling SoftwareIIC Innovative International Consulting GmbH & Co. KG

In-app purchases

None

Alarmhandler Sensor

No in-app purchases

1 purchases

DevPro Light

One-time1
  • DevPro – Pro Version | Unlock Pro$1.99

Questions

Is Alarmhandler Sensor free?
Alarmhandler Sensor 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 Alarmhandler Sensor or DevPro Light have ads?
Neither Alarmhandler Sensor nor DevPro Light shows ads.
Which is updated more often, Alarmhandler Sensor or DevPro Light?
Alarmhandler Sensor ships an update every 34 months, and DevPro Light every 29 months. Most recently, Alarmhandler Sensor was updated on September 8, 2026 and DevPro Light on September 22, 2026.

Other comparisons