🚀 Getting Started
Welcome to SubDeck! This guide will help you set up and use SubDeck to manage all your online
subscriptions efficiently.
What is SubDeck? SubDeck is a browser extension that automatically detects and
manages your online subscriptions, sends you reminders before billing, and helps you avoid unwanted
charges.
📥 Installation
Firefox
- Visit the Firefox Add-ons store
- Search for "SubDeck" or click the download link from our website
- Click
Add to Firefox
- Confirm the installation by clicking
Add
- The SubDeck icon will appear in your browser toolbar
Chrome / Edge
- Visit the Chrome Web Store (or Edge Add-ons)
- Search for "SubDeck"
- Click
Add to Chrome (or Get for Edge)
- Confirm by clicking
Add extension
- Pin the extension to your toolbar for easy access
💡 Tip: Pin SubDeck to your toolbar for quick access. Right-click the extension
icon and select "Pin".
⚙️ First-Time Setup
Step 1: Welcome Screen
When you first install SubDeck, you'll see a welcome screen explaining the key features.
Step 2: Account Registration
To use SubDeck, you need to create an account:
- Click
Register on the onboarding screen
- Enter your email address
- Create a secure password
- Confirm your password
- Click
Create Account
Why register? Registration enables cloud sync, allows you to access your data
across devices, and ensures you can recover your subscription data if needed.
Step 3: Initial Scan
After registration, SubDeck will automatically scan your browsing history to detect existing
subscriptions:
- Click
Start Scanning
- Wait for the scan to complete (usually takes 10-30 seconds)
- Review the detected subscriptions
- Click
Continue to proceed
⚠️ Privacy Note: SubDeck only scans for known subscription services. Your browsing
history is processed locally and is not uploaded to our servers unless you enable cloud sync.
📊 Managing Subscriptions
Viewing Your Subscriptions
Click the SubDeck icon in your toolbar to open the popup and view all your subscriptions.
Adding a Subscription Manually
- Open SubDeck popup
- Click the
+ Add Subscription button
- Fill in the subscription details:
- Service Name: e.g., Netflix, Spotify
- Billing Amount: Monthly cost
- Currency: USD, EUR, TWD, etc.
- Billing Cycle: Monthly, Yearly, etc.
- Next Billing Date: When you'll be charged next
- Click
Save
Editing a Subscription
- Click on the subscription you want to edit
- Update the information
- Click
Save Changes
Deleting a Subscription
- Click on the subscription
- Click the
Delete button
- Confirm the deletion
✨ Key Features
🔔 Billing Reminders
SubDeck automatically sends you notifications before your subscriptions renew:
- Default: 3 days before billing
- Customizable in Settings
- Browser notifications (requires permission)
📈 Usage Tracking
Track how often you use each subscription service:
- Automatically detects when you visit subscription websites
- Shows usage statistics in the dashboard
- Helps identify unused subscriptions
⚠️ Idle Detection
SubDeck warns you about subscriptions you haven't used recently:
- 30 days: Yellow warning
- 60 days: Orange alert
- 90 days: Red warning (consider canceling)
💰 Cost Sharing
If you share subscriptions with family or friends:
- Edit the subscription
- Enable
Shared Subscription
- Enter the number of people sharing
- SubDeck will calculate your share automatically
📊 Statistics & Analytics
View detailed statistics about your subscriptions:
- Total monthly cost
- Total yearly cost
- Cost breakdown by service
- Currency distribution
- Billing history (Free version: last 90 days only)
📅 Calendar Sync (Pro)
Sync your subscription billing dates with your favorite calendar apps. Supported platforms include:
- Google Calendar
- Outlook.com
- Microsoft Office 365
- Yahoo Calendar
- Apple Calendar / Local apps (.ics file)
⚙️ Settings & Customization
Accessing Settings
- Open SubDeck popup
- Click the
⚙️ Settings icon
General Settings
- Language: Choose from English, 繁體中文, 简体中文, 日本語, Deutsch
- Currency: Set your preferred currency
Notification Settings
- Reminder Days: How many days before billing to notify you (1-30 days)
- Enable Notifications: Turn browser notifications on/off
- Idle Warnings: Enable/disable unused subscription warnings
Privacy Settings
- Usage Tracking: Enable/disable automatic usage tracking
- Local Storage: Keep data only on this device
- Cloud Sync: Sync data across devices (requires account)
☁️ Cloud Sync
Enabling Cloud Sync
- Go to Settings
- Navigate to
Cloud Sync section
- Click
Enable Sync
- Log in with your account
- Your data will automatically sync
What Gets Synced?
- All subscription data
- Settings and preferences
- Usage statistics
- Billing history
💡 Tip: Cloud sync is encrypted end-to-end. Your data is secure and private.
Disabling Cloud Sync
- Go to Settings → Cloud Sync
- Click
Disable Sync
- Choose whether to keep local data or delete it
💾 Data Management
Exporting Your Data
- Open Settings
- Go to
Data Management
- Click
Export Data
- Choose export format (JSON)
- Save the file to your computer
Importing Data
- Open Settings
- Go to
Data Management
- Click
Import Data
- Select your JSON file
- Confirm the import
⚠️ Warning: Importing data will merge with existing subscriptions. Duplicate
entries may be created if the same subscription exists.
🔧 Troubleshooting
Subscriptions Not Detected
Solution:
- Make sure you've visited the subscription website recently
- Try manually adding the subscription
- Check if the service is in our supported services list
Notifications Not Working
Solution:
- Check browser notification permissions
- Ensure notifications are enabled in SubDeck settings
- Verify the reminder days setting is correct
Cloud Sync Issues
Solution:
- Check your internet connection
- Log out and log back in
- Try disabling and re-enabling sync
- Contact support if the issue persists
Data Not Syncing Across Devices
Solution:
- Ensure you're logged in with the same account on all devices
- Check that cloud sync is enabled on all devices
- Manually trigger a sync by clicking
Sync Now in settings
❓ Frequently Asked Questions
Is SubDeck free?
Yes! SubDeck is free to use with basic features. Pro version offers powerful professional features:
| Feature |
Free Version |
Pro Version |
| Cloud Sync |
Not available |
Automatic cross-device sync |
| Billing History |
Last 90 days only |
Full history access |
| Calendar Sync |
Not available |
Google/Outlook/Office 365/Yahoo/ICS
support |
See our pricing page for details.
Is my data secure?
Yes! SubDeck uses industry-standard encryption for all data. Local data is stored securely in your
browser, and cloud data is encrypted end-to-end. Read our Privacy
Policy for more information.
Can I use SubDeck on multiple browsers?
Yes! With cloud sync enabled, you can use SubDeck on multiple browsers and devices. Your data will sync
automatically.
How do I cancel a subscription?
SubDeck helps you track subscriptions but doesn't cancel them directly. To cancel, you need to visit the
service's website and follow their cancellation process. SubDeck will remind you before renewal so you
don't forget!
What browsers are supported?
SubDeck supports:
- Firefox 91 or later
- Chrome 88 or later
- Edge 88 or later
How do I upgrade to Pro?
Open SubDeck settings and click Upgrade to Pro. You can choose monthly, yearly, or lifetime
plans.
Can I get a refund?
Yes! We offer a 14-day money-back guarantee for all paid plans. See our Terms of Service for details.
📧 Need More Help?
If you have questions not covered in this guide:
Support Response Time: We typically respond to support inquiries within 3-5 business
days.
Thank you for using SubDeck! 🎉