Applock Pro - App Lock & Guard

Analysis by Mobexer

I know the awkward moment of handing someone my phone to show a photo, then wondering whether they might wander into messages or another app. That is the everyday problem Applock Pro - App Lock & Guard is meant to address: it adds a lock screen to apps you choose, so sharing a device does not have to mean opening everything on it. I see it as a practical privacy layer, not a replacement for a strong phone passcode or careful account security.

When one phone gets passed around

On a shared-use phone, the useful question is not “How do I lock everything?” but “Which apps should stay private when someone else needs the phone?” I would start with messaging, photos, and any app that exposes personal account details, then leave the tools a visitor actually needs available. That balance makes a quick handoff less awkward than locking the whole device or hovering over someone’s shoulder.

A realistic example is showing a relative a picture in the gallery while a child waits to play a game or a friend wants to check a map. Locking selected apps can create a boundary around the rest of the phone without turning every interaction into a full-device lockdown. It is especially handy when the phone owner is nearby and can unlock a protected app if there is a good reason.

Set boundaries before you hand over the phone

I would treat the first setup as a short privacy audit rather than a race to lock as many apps as possible. Decide what someone borrowing the phone should be able to do, and test those exact paths: open the app you intend to share, then check whether a notification preview or a nearby settings screen reveals something you meant to keep private. App locking helps restrict access inside selected apps; it does not make every trace of their content invisible.

That distinction matters in households. A lock can deter casual browsing, but it is not a substitute for separate user accounts, a device-level screen lock, or a conversation about what is appropriate to access. If a second person regularly uses the phone as their own, an app lock may feel like a patch over a deeper account-boundary problem. A separate device or account structure is usually the cleaner choice when that is practical.

Coordinate without making privacy a guessing game

On a device that family members borrow, I would tell regular users which apps are protected and how to ask for access. Otherwise, a child trying to reach a permitted game or a partner opening a shared utility may assume the phone is broken or that the owner is hiding something from them. A simple explanation turns the lock into a clear boundary instead of a surprise obstacle.

There is also a useful trade-off between convenience and privacy. Locking every app may sound safer, but repeated prompts can frustrate the people who genuinely need access and tempt the owner to disable protection altogether. I prefer a smaller, deliberate list: protect sensitive apps, keep common shared tasks easy, and revisit the selection when the phone’s use changes.

Lock It Down!

The primary feature of Applock Pro is, no surprises here, locking your apps. Whether it's your gallery, messaging apps, or even specific settings, you can lock them with a pattern, PIN, or fingerprint. I tried locking my social media apps, and it was a breeze. No more random snoopers checking out my Instagram DMs!

Customization Galore

One thing that stood out for me was the customization options. You can choose different lock themes, which is a fun way to make security a bit less boring. Plus, if you're someone who frequently changes their phone's wallpaper or theme, this app lets you match your lock screen to your current aesthetic. Pretty cool, right?

To me, themes are more than decoration when the phone is used by other people: a distinct lock appearance makes the protected-app boundary easier to recognize. Still, I would choose a design that stays legible and easy for the owner to identify, rather than spending time making the screen look elaborate. The point is to make a repeated check feel clear, not to turn unlocking into a daily puzzle.

Intruder Selfie

Here's something I didn't know I needed until I had it: the intruder selfie feature. If someone tries to snoop around and gets the password wrong, the app snaps a quick picture of them. It's like having your very own security camera! I tested it by deliberately getting the password wrong, and boom – instant mugshot. It's both hilarious and useful.

I would treat that feature as a deterrent and a curiosity, not as proof of who accessed the phone or a reliable way to handle a serious security incident. In a household, taking a picture after a wrong attempt can also create tension if a child or another authorized borrower simply forgets the pattern. It is worth thinking about who might trigger it before enabling a feature that can feel more confrontational than a plain lock prompt.

Ease of Use

Okay, let's talk usability. Applock Pro is pretty straightforward. The interface is clean, with everything clearly labeled. Even if you're not a tech wizard, you'll be able to navigate it with ease. Setting up my initial locks took less than five minutes, and the app didn't slow down my phone at all, which is always a plus.

For a shared phone, I would also test the ordinary routine after setup: lock the screen, unlock the phone, open a protected app, and then hand the device to the person who needs it. A quick trial catches confusing choices before they interrupt a real moment. If someone needs one protected app only occasionally, agree on how to request access rather than making them guess the PIN or repeatedly attempt a pattern.

App locks sit between a built-in phone lock and the stronger separation offered by separate accounts or devices. A phone passcode protects access to the whole device, while this app lets the owner put extra barriers around selected apps. That selective approach is convenient when lending a phone briefly, but it is less suitable when another person needs an independent space, their own settings, or reliable long-term access.

Battery Friendly

Now, I have to admit, I'm always a bit wary of apps that run in the background because they tend to be battery hogs. Surprisingly, Applock Pro is quite gentle on the battery. I didn't notice any significant drain, which is a huge relief when you're out and about with no charger in sight.

My practical advice is to check how the app behaves on your own phone after you have chosen the apps to protect, rather than assuming every device and routine will feel identical. Security tools need to fit the way you use the phone; if prompts become irritating or protection behaves inconsistently, simplify the list and reassess whether a built-in option would suit you better. The best setup is one you can live with and keep enabled.

Age, trust, and the right expectations

The app is rated for Everyone, and I would still make the household decision based on the person using the phone, not just that label. A younger borrower may need a clear explanation that a protected app is private, while an adult sharing the device may prefer a direct agreement about which apps are off-limits. App locking can support those boundaries, but it cannot create trust or decide what access is fair.

It is also not a parental-control system in the broader sense. I would not choose it on the assumption that it manages a child’s accounts, filters content, or sets household rules. Its role is narrower: protecting chosen apps with a lock screen. If the goal is supervised use or a separate child profile, a device-level family or account option is a better place to look.

Who will get the most from it?

I think it fits people who lend their phone now and then, want a second barrier around personal apps, and are comfortable managing a selected lock list. It can also help someone who keeps work and personal conversations on one device and wants casual borrowers to stay out of the latter. The app is free to install, though it includes in-app purchases ranging from $0.99 to $99.99 per item, so I would check the purchase choices before committing to anything beyond the basic setup.

I would skip it if you need a fully separate space for another regular user, expect a lock to hide all notification content, or want a complete family-supervision tool. I would also favor the phone’s built-in security when one device passcode already covers your needs and extra app-by-app prompts would only get in the way. More locks do not automatically mean better privacy; the right choice depends on who uses the phone and what they need to reach.

What the track record tells me

App Lock LLC’s productivity app has a 4.4 average from around 1.9 million ratings, with over 100 million installs and around 12,000 written reviews. Those figures suggest it has reached a large audience, but popularity alone does not tell me whether its prompts suit a particular household. I would judge it by a simple test: can you protect the apps that matter without making ordinary sharing cumbersome?

The app was released on May 30, 2018, and its current version is 5.5.9, with Android 7.0 as the minimum operating system requirement. That gives Android users a quick compatibility check before they plan a setup. The age rating is Everyone, but, as with any privacy tool, an adult should still explain its purpose and limits when a younger person uses the device.

Final Thoughts

All in all, Applock Pro - App Lock & Guard delivers on its promise of keeping your personal stuff, well, personal. It's like having a tiny bouncer living in your phone. If privacy is a priority for you, and let's be honest, it should be for all of us, this app is definitely worth a download. So, if you're ready to take control of your privacy without jumping through hoops, give Applock Pro a shot. Your peace of mind will thank you!

My household verdict is that it works best as a small, visible boundary for occasional borrowing—not as a substitute for separate accounts, device security, or honest coordination. I would begin with a few sensitive apps, explain the arrangement to regular borrowers, and see whether the extra prompts genuinely make sharing more comfortable. If they do, keep the setup; if they turn a shared phone into a daily negotiation, choose a more suitable account or device arrangement instead.