Comparison

Door Alert vs Prospect

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

Head to head
About

Door Alert

This utility app acts as a simple security monitor for your smartphone. It detects unauthorized door entries or exits and notifies you immediately. It's designed to offer an extra layer of security for families with young children.

Highlights
  • Unauthorized exit/entry detection
  • Immediate audible alarm
  • Optional silent email/SMS alerts
  • Works with or without cellular
  • Low battery usage
Features
Read full description

Introducing Door Alert, an easy-to-use security solution for smartphones! Monitors for unauthorized exits or entries, alerting you immediately. Just start the app, place the phone against the door, and it’s ready! Visit DoorAlertApp.com for more ideas and uses. The app uses an audible alarm. Optional features include sending an alert silently through email or SMS gateway. An additional peace of mind for families with young kids. Works with or without a cellular account. Notes: • the app is intended to be an additional security measure, not a replacement to conventional home and travel solutions • silent alerts are sent as-is; while every attempt is made to ensure delivery, there may be situations outside our control which can prevent delivery • when running, battery usage is increased by less than 1% per hour

About

Prospect

Features
Read full description

This is a tool for configuring and adjusting alarm systems during the installation process which is always at hand.  The Prospect app makes it easy to work with the alarm settings: · update the software; · change settings; · test the execution of commands; · monitor vehicle parameters; · set up notifications; · set up keyless remote start and calculate the encryption key for it; · other functions. The application supports connection to the system via Bluetooth. If the car with the alarm system is located far away, then you can connect to it via the Internet (GSM) and make all the settings, as with direct connection.

Screenshots

Door Alert4 screens
Prospect4 screens

Verdict

The call

The clearest difference is update cadence: Prospect at every 2 months against Door Alert's every 33 months. Door Alert's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Door Alert ships an update every 33 months, Prospect every 2 months. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.

Scorecard2 real differences · 8 level
Door Alert versus Prospect: the parameters behind the verdict, then further details
ParameterDoor AlertProspect
PriceFreeFree
Rating2.5 (2 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 33 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size5 MB1 MB
Age rating4+4+
DeveloperRussell HarperAlexander Butko

In-app purchases

None

Door Alert

No in-app purchases

None

Prospect

No in-app purchases

Questions

Is Door Alert free?
Door Alert is free to download, with no in-app purchases.
Is Prospect free?
Prospect is free to download, with no in-app purchases.
Do Door Alert or Prospect have ads?
Neither Door Alert nor Prospect shows ads.
Which is updated more often, Door Alert or Prospect?
Door Alert ships an update every 33 months, and Prospect every 2 months. Most recently, Door Alert was updated on October 10, 2026 and Prospect on October 15, 2026.

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