Five products · Google Play, Microsoft Store and the web

Native apps, built to stay out of your way.

JK Codes is an independent studio making small, fast, private software for Android, Windows and the web. Every app runs on your device, asks for no account, shows no ads and sends nothing home.

5products shipped
3platforms today, more planned
0trackers, ads or accounts in any app
100%on-device processing
The apps

Five products. One rule: your device, your data.

Two on Google Play, two on the Microsoft Store, one in your browser. Each one solves a single annoying problem well, without a subscription to a cloud you never asked for.

StickyHover icon

StickyHover

Android

Sticky notes that float on top of any app.

Write a note, tap Float, and it stays visible above your browser, chat or trading app. Checklists, voice memos, drawings, handwriting scan, reminders that read aloud. 100% offline, 15 languages.

Free with Pro upgradeAndroid 7.0+v1.26
StickyHover floating a note over another app
NeuroAlarm icon

NeuroAlarm

Android

The heavy-sleeper alarm that will not stop until you are actually up.

Walk 100 metres, scan a QR code in another room or solve a puzzle to switch it off. 20 sensor-verified challenges with anti-cheat, rationed snooze, and zero data collected.

Free with ProAndroid 8.0+20 challenges
NeuroAlarm home screen
MiniMon icon

MiniMon

Windows

Your whole PC, at a glance. An always-on-top system monitor and mini Task Manager.

Live CPU, RAM, GPU, disk, network and temperature in one compact card that stays above your other windows. Grouped processes you can end in one click. Under 1 MB, native C++.

$2.99 one-time · 7-day trialWindows 10 / 11v1.2
MiniMon performance card
Curlew icon

Curlew

Windows

Offline voice dictation. Hold a key, speak, and the words land at your cursor.

Whisper and NVIDIA Parakeet speech models running entirely on your CPU. Works in any app, no internet, no account, no subscription. Your audio never leaves the PC.

One-time purchase · free trialWindows 10 / 11, x64Coming to the Store
About Curlew Microsoft Store listing in review
Curlew settings window
AllPDF.tools icon

AllPDF.tools

Web · Android

30 PDF tools that run in your browser. Nothing is ever uploaded.

Merge, split, compress, convert, OCR, sign, edit, protect. Files stay on your device because there is no server. The Android app adds a camera document scanner and carries no ads.

Free with ProAny browserAndroid 6.0+
allpdf.tools About AllPDF Google Play listing coming
AllPDF.tools app home screen
How we build

Small studio. Strong opinions.

These are not marketing lines. They are constraints every JK Codes app is checked against before it ships.

Private by default

No analytics SDK, no crash reporter, no advertising ID. If an app needs the network at all, the reason is written down in its privacy policy in plain English.

Native where it counts

Kotlin and Jetpack Compose on Android. C++ and .NET on Windows. AllPDF.tools is a web app on purpose, so the same code runs in your browser and in its Android app, still entirely on your device.

Honest pricing

Free tiers that are genuinely useful. One-time purchases where they make sense. Trials before you pay. Never a feature held hostage to a subscription you cannot cancel.

Where to find us

Official stores only.

Every JK Codes app is published under the same developer name in the official store for its platform, so updates arrive the safe way.

Google Play

StickyHover and NeuroAlarm today, AllPDF.tools next, published by JK Codes.

Microsoft Store

MiniMon today, Curlew next, published by JK Codes.

iOS and macOS

Planned. New platforms follow the same rules as the first two.

The web

AllPDF.tools runs in any modern browser. Nothing to install, nothing uploaded.

Support

One address for every app.

Bug reports, feature requests, refund questions, privacy requests. A human reads every message, and you will never be asked to create an account to get help.

support@jkcodes.app

Privacy requests: privacy@jkcodes.app · Everything else: hello@jkcodes.app