DEV Community: dileep

Speaker Upgraded 🔊 – Clean Your Phone Speaker

dileep — Mon, 12 Oct 2026 11:18:27 +0000

Have you ever experienced muffled phone audio after your speaker was exposed to water or dust?

We developed Speaker Upgraded, an Android app that plays sound frequencies designed to help dislodge water and loose particles from your phone speaker.

✨ What the app offers:

🔹 Quick Clean for convenient speaker cleaning.

🔹 Deep Clean for another cleaning sound option.

🔹 Multiple sound frequencies to try.

🔹 A simple, easy-to-use interface.

📱 Try it on Google Play:https://play.google.com/store/apps/details?id=com.myqrmart.acoustic_speaker_cleaner&pcampaignid=web_share

We're sharing this app with the community and would love to hear your feedback!

What features would you like to see in a speaker-cleaning app?

Call Recorder: Voice, Calls & SOS

dileep — Mon, 05 Oct 2026 10:55:31 +0000

We developed Call Recorder, an Android app that combines voice recording, call recording, and an SOS emergency feature in one simple app.

🎙️ Voice Recording
Record voice/audio whenever you need it and keep the recordings for later.

📞 Call Recording
Record voice calls and save important conversations for future reference.

🆘 SOS Emergency Feature
This is one of the main features we wanted to make different.

You can save an SOS contact in the app. In an emergency, simply shake the phone 5 times. The app then starts recording audio for 12 seconds and sends the recorded audio to your saved SOS contact.

The idea behind the app is simple — make recording easy for everyday use while also providing a quick way to capture and share audio during an emergency.

Key Features

• Voice recording
• Call recording
• SOS contact
• 5-shake SOS activation
• Automatic 12-second SOS recording
• Send SOS audio to the saved contact
• Simple and easy-to-use interface

We built this app and would really appreciate feedback from the Android community.

What do you think about the 5-shake SOS feature?

Google Play:
https://play.google.com/store/apps/details?id=com.myqrmart.call_recorder&pcampaignid=web_share

More Than a Flashlight: Meet Flashlight Upgraded 🔦

dileep — Fri, 02 Oct 2026 11:10:42 +0000

More Than a Flashlight: Meet Flashlight Upgraded 🔦

Your smartphone flashlight is useful when you need to find something in the dark. But what if it could do more than simply light up your surroundings?

Introducing Flashlight Upgraded — an Android flashlight app designed to bring together everyday illumination, light-signal communication, and SOS signaling in one place.

📲 Get Flashlight Upgraded on Google Play:
https://play.google.com/store/apps/details?id=com.myqrmart.flashlight

🔦 1. A Simple Flashlight, Ready When You Need It

Sometimes, you just need a quick source of light.

Flashlight Upgraded lets you turn your phone’s flashlight on and off when you need it, whether you're looking for something in a dark room or need extra light around you.

The goal is to keep the essential flashlight functionality simple and accessible.

📡 2. Communicate Using Light Signals

Here's where the app gets interesting!

Flashlight Upgraded lets you use blinking flashlight patterns as a way to communicate simple signals.

Instead of using only the light for illumination, you can use different flashes to convey a message to someone who can see your light.

Imagine using light pulses to get someone's attention or communicate a prearranged signal from a distance.

It's a simple idea that gives your phone's flashlight another purpose.

🆘 3. SOS Signaling for Emergencies

In situations where you need to attract someone's attention, a visible light signal can be useful.

Flashlight Upgraded includes an SOS signaling feature that uses your phone's flashlight to send an SOS pattern.

This can help you signal to people nearby when you need assistance, provided they can see your flashlight.

Important: SOS signaling is not a replacement for emergency services, and using the feature does not guarantee that someone will see or respond to your signal.

✨ Why We Built It

We wanted to explore how a familiar smartphone feature could be used in more ways.

A flashlight is something many people already use. By adding light-signal communication and SOS signaling, we wanted to make it more versatile and useful.

Whether you're using it for everyday lighting, experimenting with light signals, or learning how SOS signaling works, Flashlight Upgraded brings these functions together in one app.

📲 Try Flashlight Upgraded

If you're an Android user, give the app a try!

👉 Download on Google Play:
https://play.google.com/store/apps/details?id=com.myqrmart.flashlight&pcampaignid=web_share

We're continuously looking for ways to improve our apps, and your feedback matters.

What do you think about using a smartphone flashlight for communication?** Are there other light-signal features you'd like to see in a future update?

Share your thoughts in the comments. We'd love to hear from you!

Android #AndroidApps #Flashlight #AppDevelopment #MobileApps

I Built a QR Scanner and QR Code Generator App for Android — Here's What I Learned

dileep — Sat, 26 Sep 2026 07:12:13 +0000

****QR codes have become part of everyday life.

https://play.google.com/store/apps/details?id=com.myqrmart.universal_qr_scanner

We use them for websites, menus, payments, Wi-Fi access, event information, product information, and many other things. As an Android developer, I wanted to build a simple utility that could handle some of these everyday QR-code tasks in one place.

So I built QR Scanner, an Android app for scanning QR codes and generating QR codes.

Why I built it

There are already many QR-code applications available, so I wasn't trying to create a completely new concept.

My goal was to build a straightforward utility that combines QR scanning with some useful QR-code generation features.

While developing it, I also wanted to understand how users interact with a small utility app and what features actually make it useful in everyday situations.

What the app can do

Scan QR codes

The app can scan QR codes using the phone's camera and read the information contained in them.

Depending on the content, it can open the associated link or display the information.

Generate QR codes from text

You can enter text and generate a QR code from it.

This can be useful when you want to share information without asking someone to manually type it.

Generate QR codes for URLs

You can enter a website URL and create a QR code for that link.

Someone can then scan the generated QR code to access the website.

Generate Wi-Fi QR codes

The app also supports creating QR codes for Wi-Fi network information.

Instead of manually sharing network details, you can generate a QR code containing the required Wi-Fi information.

What I learned while building it

Building a small utility app sounds simple until you start thinking about the details.

A QR scanner needs to work reliably in different lighting conditions and with different QR-code sizes and orientations.

The interface also needs to be simple because users generally want to open the app, perform the task, and move on.

That made me focus on keeping the core experience straightforward rather than adding unnecessary complexity.

What I'd like to improve

The app is still something I'm continuing to improve.

I'd like to hear from Android users and developers about what they would add.

Some things I'd particularly like feedback on are:

What QR-code formats do you use most often?
What features are missing from the app?
Is the scanning experience fast enough?
Is the interface easy to understand?
Would you find additional QR-generation options useful?
Are there any parts of the experience that could be simpler?

Try the app

I've published the app on Google Play if you'd like to try it:

https://play.google.com/store/apps/details?id=com.myqrmart.universal_qr_scanner

I'd genuinely appreciate feedback, including criticism or feature suggestions.

My goal is to keep improving the app based on how people actually use it.

What's next?

I'm planning to continue working on the app and adding improvements based on user feedback.

For me, releasing the first version isn't the end of the development process.

It's the beginning of learning what real users actually need.

If you have built a utility app yourself, I'd also be interested in hearing about what you learned from your first release.