Support

Help with installing and using KHBROS apps.

Step-by-step install guides, answers to common questions, and a way to reach a real person.

Install on a Mac

Our Mac installers are .pkg files. They are not signed with an Apple Developer ID yet, so after you download one, macOS asks you to approve it once. It takes about a minute.

  1. Download the installer. Get the .pkg from the app's page.
  2. Try to open it. Double-click the file. macOS says it cannot verify the installer. Click Done. Do not choose Move to Trash.
  3. Allow it in System Settings. Open System Settings › Privacy & Security and scroll down to the Security section. You will see a note that the installer was blocked. Click Open Anyway.
  4. Confirm. Click Open Anyway once more in the confirmation, then use Touch ID or enter your Mac password.
  5. Install. Follow the installer. Some of our installers ask for your Mac password.
  6. First launch. If macOS also blocks the app itself the first time, repeat steps 3 and 4. The entry in Privacy & Security names the app.

Do not see Open Anyway? Double-click the installer again so macOS shows its message, then reopen Privacy & Security. The button appears under Security right after you try to open the file.

An installer opened straight from an external drive usually runs without this step. A download, AirDrop or email adds a quarantine flag, which is what triggers the message.

Why does this happen? We are not enrolled in Apple's developer programme yet, so our installers are not signed or notarised. You can check any download against its SHA-256 fingerprint, as described below.

Install on Android

Our Android apps are APK files, not Play Store apps. Android asks you to allow installs from the app you open the file with.

  1. Download the APK in your phone's browser, or on a computer and copy it across.
  2. Open the file from the browser's download list or the Files app.
  3. Allow this source. Android says your phone is not allowed to install unknown apps from here. Tap Settings and switch on Allow from this source for the app you used (Chrome, Files, Drive). Go back.
  4. Install. Tap Install. If Play Protect says it does not recognise the developer, tap More details › Install anyway. The APK is signed with our own key, not a store key.
  5. Open the app. Some apps need one more step the first time, listed below.

First-run steps

  • Veil. Allow notifications. On the WhatsApp page inside Veil tap Log in with phone number and enter your number. In the WhatsApp app go to Settings › Linked devices › Link a device › Link with phone number instead and type the 8-character code Veil shows.
  • Screen Veil. Tap Allow display over other apps, find Screen Veil Basic, switch it on and come back. If the switch is greyed out (Android 15 and later), tap Open App info, then the menu in the top corner › Allow restricted settings, confirm, and try again. On some phones (OnePlus, Samsung, Xiaomi) also tap Keep it on screen so the phone does not close the button to save battery.
  • KhCal. Nothing to allow: it needs no permissions.

Updating. Install a newer APK over the old one. Your data and settings are kept. You can switch the “allow from this source” permission off again afterwards.

Install the PowerPoint add-ins

The KPT add-ins (KPT Style, KPT, KPT Links and KPT Pen Lab) are for PowerPoint for Mac. Each adds one tab to the ribbon.

  1. Run the installer. Double-click the .pkg. If macOS objects, follow the Mac guide above. The installer asks for your Mac password because it installs into Office's system-wide Startup folder.
  2. Restart PowerPoint. Quit it completely with Command-Q, then open it again. PowerPoint loads add-ins when it starts.
  3. Find the ribbon tab. The new tab appears after View.
Add-inTab nameUninstall command
KPT Style BasicKPT Style BasicUninstall KPT Style Basic.command
KPT BasicKPT BasicUninstall KPT Basic.command
KPT Links BasicKPT Links BasicUninstall KPT Links Basic.command
KPT Pen Lab BasicPen Lab BasicUninstall KPT Pen Lab Basic.command

KPT Pen Lab: first run

Pen Lab draws on a see-through layer above your slide, so macOS asks for two permissions the first time you use it:

  1. Automation. When you press Pen, Rectangle, Ellipse or Line, macOS asks whether KPT Pen Lab Basic may control PowerPoint. Click OK.
  2. Accessibility. Open System Settings › Privacy & Security › Accessibility and switch on KPT Pen Lab Basic. If it is already listed, switch it off and on again. This lets the layer follow PowerPoint's zoom and scrolling exactly. Without it Pen Lab still works: it sets PowerPoint to Fit when the layer opens.

Tab missing? Quit PowerPoint fully (Command-Q, not just closing the window) and open it again. If it is still missing, run the installer again or contact us.

Uninstalling. Double-click the uninstall command for your add-in in /Library/Application Support/KPT/<add-in name>/. It removes only that add-in's files.

Verify a download

Every download has a SHA-256 fingerprint. To check yours on a Mac, open Terminal and run shasum -a 256 <file> (drag the file into the window to fill in its path), then compare the result with the table below.

AppFileSHA-256
Veil
Mac		Veil-Basic-1.1.0.pkg
1.1.0 · 1.7 MB		767ed46784f2c746ee32d524b16839a2943de56744e32338d8698ff7e62a09f3
Veil
Android		Veil-Basic-Android-1.1.0.apk
1.1.0 · 175 KB		461b7f65da636b5a287838e707de3a218eeaf4faacea6b9d6bdfec6a4f219617
Screen Veil
Mac		ScreenVeil-Basic-1.1.0.pkg
1.1.0 · 1.2 MB		b2e76d899a462f5d92e7f22725ce5a9ae4ba7fd72aecc52dd4efce9bdfb48c37
Screen Veil
Android		ScreenVeil-Basic-Android-1.1.0.apk
1.1.0 · 46 KB		a4dcfe321d433fb60c4e6bb58057e303c37dd40075c2128625338a16c935298f
KhCal
Mac		KhCal-Basic-1.0.0.pkg
1.0.0 · 2.1 MB		5064e8186be6d75fdbd0cc856920a57056986730cf6470e14d7541bb751a6df2
KhCal
Mac		KhCal-Basic-1.0.0.dmg
1.0.0 · 3.2 MB		b206187657e9fb2b3787bc5e1c8ab2ad912d2aff5386e349430d1c7ae4734ef5
KhCal
Android		KhCal-Basic-Android-1.0.0.apk
1.0.0 · 10.3 MB		d5daf155d0269aec43c6b4ce6941b84f826a5c5857f069fc113f94bd4bdaaed2
PDF to Office
Mac		PDF-to-Office-Basic-1.0.0.pkg
1.0.0 · 41.2 MB		376b582e113bbbf37a4436b87195dee621b458d840fda52f53adc7a6af5b56fb
KBackup
Mac		KBackup-Basic-1.0.0.pkg
1.0.0 · 2.4 MB		162b5a4bb559c9327596275313119a7d712da074436d00639605644a6b99f636
KPT Style
PowerPoint for Mac		KPT-Style-Basic-1.0.0.pkg
1.0.0 · 621 KB		46d4294a8114681e6fb9704e8d3586903a5396268458537964cde2eb78888da0
KPT
PowerPoint for Mac		KPT-Basic-1.0.0.pkg
1.0.0 · 679 KB		88320f74fea607fb07ab0b6773ab8c33f122aa278e2ca57dfd8bed11734d0c75
KPT Links
PowerPoint for Mac		KPT-Links-Basic-1.0.0.pkg
1.0.0 · 969 KB		ef10f12d04adc8a3c8a56bf0169aaabe6ce12ba17a7096e64b68590cfda2ed40
KPT Pen Lab
PowerPoint for Mac		KPT-Pen-Lab-Basic-1.0.0.pkg
1.0.0 · 1.1 MB		23a4a7791576379dcedfdc03c0e0e21fb9e79211862f6dca88d8c167530470e4
KPT Retouch
PowerPoint for Mac		KPT-Retouch-Basic-1.0.0.pkg
1.0.0 · 198 MB		a2e15e8f20481377de7873fb40cce14a1b77d9df3d94c4138e219ee08a522128

Frequently asked questions

Is BASIC really free?

Yes. Every BASIC edition is free to download and use, with no time limit, no ads and no account. ADVANCED is the paid edition, arriving soon.

When can I buy ADVANCED?

Not yet. We are completing our UAE business licence before we take payments. Join the waitlist and we will email you the day sales open.

Do the apps collect my data?

No. The apps collect no personal data and have no accounts. Veil connects only to web.whatsapp.com, and KhCal ADVANCED fetches exchange rates and translations. Read the privacy policy for details.

Which computers and phones do the apps support?

Each app page lists its requirements. In short: the Mac apps need macOS 11 to 14 or later depending on the app, the Android apps need Android 8 to 10 or later, and the KPT family needs PowerPoint for Mac. An iPhone version of KhCal is planned.

Can BASIC and ADVANCED be installed together?

Yes. They are separate apps with their own settings, so installing, using or removing one never touches the other.

How do I uninstall an app?

On the Mac, drag the app from Applications to the Trash. The PowerPoint add-ins include an Uninstall … Basic.command in /Library/Application Support/KPT/. On Android, remove it like any other app.

How do I check that my download is genuine?

Each download shows a SHA-256 fingerprint. In Terminal on a Mac, run shasum -a 256 ‹file› and compare the result.

Will there be a Windows version?

Not at the moment. Our focus is Mac, Android, iPhone and PowerPoint for Mac.

Contact us

Write to support@khbros.app or use the form. Please say which app and which device you use, and what you expected to happen.

or email support@khbros.app

We reply from support@khbros.app. We keep only what you send here, to answer you. See the privacy policy.