Comparison

Paladin Security vs KeyPlus3

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

Head to head
About

Paladin Security

This app offers a suite of tools designed to enhance personal safety and real-world utility. It includes features like sound detection, customizable flashlights, emergency signalers, and panic alarms to help users in various situations.

Highlights
  • Sound detection with alarm
  • Adjustable flashlight intensity
  • Emergency SOS flasher
  • Panic alarm with touch/shake trigger
  • Fake incoming call screen
  • Countdown timer with alarm
  • Customizable message display
Features
Read full description

PALADIN SECURITY is a free app that contains no ads and collects no data. It's just an app I made that may help you leverage your device's capability in real world situations, possibly keeping you safer. Paladin does this by incorporating 11 basic functions: MESSAGE allows the user to enter a message and delivers it in either large screen sized letters or flashing morse code. SOUND SENTRY allows the phone to be used as a dedicated sentry that sits patently, listening for any disturbing sounds. When a sound level is detected over the set threshold, the unit responds with an alarm and flashing lights. FLASH LIGHT uses the built in flash of your device as a light source with an adjustable intensity. (Please note that this particular function is only available with devices that support the rear flash hardware.) SCREEN LIGHT uses the screen of the device as an additional light source. You can select the color and the intensity. There is also an option to strobe the light at a variable speed in case you want to get attention. EMERGENCY FLASHER uses both the device flash (if available) and the front screen to flash out S.O.S. By using both the front and back of the device (if supported) as a flashing light source it increases the chances of being seen regardless of current position or how the device happens to land. PERSONAL PROTECTION uses the device as a fail safe protection device, a panic switch of sorts. Simply turn it on and place a finger or thumb on the screen. If anything happens to the user that lifts the finger, the phone will flash and set off an alarm. This will work even if you accidentally drop it or it is knocked from your hands. CALL displays a fake incoming call screen, in case you need to distract someone for a moment. TRIGGER sets up a panic screen that only needs the device to be touched or shaken to set off the alarm. COUNTDOWN is a quick selectable countdown timer that sounds the alarm unless it is canceled before the time expires. Example use would be to set it when going to your car and the alarm will sound if you don't cancel it when safe within the time limit. BEACON is a selectable pattern flasher using your device. HELP is a fixed large screen message indicating that you need assistance. Different messages are selectable. PLEASE NOTE: Continued use of the bright flash may dramatically decrease battery life. Devices without flash hardware will not have the rear flashlight function.

About

KeyPlus3

Features
Read full description

Special Key KeyPlus provides customers with a unique experience. Creating a world where you can easily control and share car doors with just one phone, enabling a special life. The one thing that turns my car into a smart car is Special Key KeyPlus. YouTube Introduction Video: https://www.youtube.com/watch?v=rcryNcxolg8&t=2s Company Website: http://smartkeyplus.com/ Blog: https://blog.naver.com/sokeyplus

Screenshots

Paladin Security4 screens
KeyPlus34 screens

Verdict

The call

The clearest difference is update cadence: KeyPlus3 at every 2 weeks against Paladin Security's every 5 months. KeyPlus3 also leads on iOS requirement (15.0 vs 18.6). 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

Paladin Security ships an update every 5 months, KeyPlus3 every 2 weeks. The most recent releases landed on September 26, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Paladin Security versus KeyPlus3: the parameters behind the verdict, then further details
ParameterPaladin SecurityKeyPlus3
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.0 — better
Further details — not scored
Size3 MB35 MB
Age rating4+4+
DeveloperGreg ChaffinsSpecial One Co., Ltd.

In-app purchases

None

Paladin Security

No in-app purchases

None

KeyPlus3

No in-app purchases

Questions

Is Paladin Security free?
Paladin Security is free to download, with no in-app purchases.
Is KeyPlus3 free?
KeyPlus3 is free to download, with no in-app purchases.
Do Paladin Security or KeyPlus3 have ads?
Neither Paladin Security nor KeyPlus3 shows ads.
Which is updated more often, Paladin Security or KeyPlus3?
Paladin Security ships an update every 5 months, and KeyPlus3 every 2 weeks. Most recently, Paladin Security was updated on September 26, 2026 and KeyPlus3 on October 10, 2026.

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