CertTracker
How do I add a certificate?
Open CertTracker, tap the add button, and fill in the certificate's name, issue date, and expiry date. You can also attach a photo or PDF of the certificate itself.
Why can't I add more certificates?
The free plan includes up to 5 certificates. To track more, upgrade to CertTracker Pro from the app's subscription screen.
How do I cancel my subscription?
Subscriptions are managed through Google Play. Open the Play Store app, go to Menu > Subscriptions, select CertTracker, and tap Cancel.
How do I get reminded before a certificate expires?
CertTracker sends a local notification 30 days before an expiry date by default. Make sure notifications are enabled for the app in your device settings.
Is my data backed up?
Yes — your certificates and files are synced securely to your account, so signing in on a new device restores everything.
How do I delete my account and data?
Go to Settings > Account > Delete Account inside the app. This permanently removes your certificates, files, and account. You can also email us to request deletion.
ErrorDecoder
How does ErrorDecoder work?
Snap a photo of an error message, crash log, or terminal output, and ErrorDecoder sends it to an AI model that explains what the error means and suggests how to fix it.
Is my photo stored anywhere?
Photos are used only to generate your diagnosis and are not kept after the request is processed.
The app can't read my error clearly. What can I do?
Make sure the text is well-lit, in focus, and fills as much of the frame as possible. Avoid glare on screens when photographing a monitor.
Why am I seeing ads?
ErrorDecoder is free to use and supported by ads shown between diagnoses.
Block & Slice TD
How do I unlock more levels?
Levels unlock as you complete previous ones. Some levels may also require reaching a minimum score or star rating.
The game is running slowly or crashing on my device.
Try closing other background apps, and make sure Block & Slice TD is updated to the latest version from Google Play. If it keeps happening, email us your device model and Android version.
Can I play offline?
Yes, the core game works offline. An internet connection is only needed for ads and any online features.
How do I report a bug or suggest a level?
Email us using the contact details below — screenshots or a short screen recording help us track down issues faster.