If you're unable to log in to your SparkFast account, try these solutions:
Solution 1: Check Your Internet Connection
1. Ensure you have a stable Wi-Fi or cellular connection
2. Try switching between Wi-Fi and mobile data
3. Restart your router if using Wi-Fi
Solution 2: Verify Your Login Credentials
1. Double-check your email address for typos
2. Use the "Forgot Password" option to reset your password
3. Check your spam folder for the password reset email
Solution 3: Clear App Cache
iPhone: Delete and reinstall the app
Android: Go to Settings → Apps → SparkFast → Clear Cache
Solution 4: Update the App
1. Open the App Store (iOS) or Google Play Store (Android)
2. Search for SparkFast
3. Tap "Update" if available
If your fasting history appears to be missing:
1. Ensure you're logged into the correct account (Google, Apple, or Email)
2. Check if you previously used a different sign-in method
3. Contact support at support@sparkfast.app with your account email
1. Ensure you're signed into your Apple ID or Google account on your device
2. Check that SparkFast has permission to use Sign In with Apple/Google in your device settings
3. Try restarting your device and attempting sign-in again
If your fasting timer shows incorrect times:
Check Your Device Time Settings
1. Go to your device Settings → Date & Time
2. Enable "Set Automatically"
3. Restart SparkFast
Timezone Issues
If you recently traveled or changed timezones:
1. Close SparkFast completely
2. Ensure your device timezone is correct
3. Reopen the app - the timer should adjust automatically
Unfortunately, once a fast is ended, it cannot be resumed. However:
1. You can start a new fast immediately
2. Your completed fast (even if short) is still recorded in your history
3. Use the backdated fast feature to log fasts you forgot to track
SparkFast now includes smart overlap resolution:
1. When starting a backdated fast that overlaps with a previous one, you'll see a prompt
2. Choose "Adjust & Start" to automatically shorten the previous fast
3. This maintains accurate records without blocking your new fast
1. Pull down on the main screen to refresh
2. Check your internet connection
3. Force close and reopen the app
4. If the issue persists, try logging out and back in
Step 1: Check Permissions
1. Open iPhone Settings → Health → Data Access & Devices
2. Find SparkFast and tap on it
3. Ensure all data types are enabled (Weight, Steps, Sleep, etc.)
Step 2: Re-enable Health Sync
1. Open SparkFast → Settings → Health Sync
2. Toggle Apple Health off, then on again
3. Confirm permissions when prompted
Step 3: Force Sync
1. Open the Apple Health app
2. Make a small change (like adding a weight entry)
3. Return to SparkFast and pull down to refresh
Step 1: Check Google Fit Permissions
1. Open SparkFast → Settings → Health Sync
2. Tap "Connect Google Fit"
3. Grant all requested permissions
Step 2: Verify Google Fit Is Working
1. Open Google Fit app separately
2. Ensure it's recording your data
3. Return to SparkFast and refresh
Step 3: Check Google Account
1. Ensure you're using the same Google account in both apps
2. Try disconnecting and reconnecting Google Fit in SparkFast settings
1. Verify your scale is syncing to Apple Health or Google Fit first
2. Check that weight read permissions are enabled for SparkFast
3. Weight syncs once daily - allow time for data to appear
4. Manually add weight in SparkFast if sync isn't working
For Keto-Mojo or other glucose monitor users:
1. Ensure your device is synced to Apple Health first
2. Check that glucose read permissions are granted to SparkFast
3. SparkFast reads blood glucose data from Apple Health and Ketones data from Keto-Mojo
4. Manual entry is available in the Metabolic Tracking section
iPhone Users:
1. Go to Settings → Notifications → SparkFast
2. Enable "Allow Notifications"
3. Enable Banners, Sounds, and Badges as desired
4. Check that Focus/Do Not Disturb isn't blocking notifications
Android Users:
1. Go to Settings → Apps → SparkFast → Notifications
2. Enable notifications
3. Disable battery optimization for SparkFast (Settings → Battery → SparkFast → Don't optimize)
In-App Settings:
1. Open SparkFast → Settings → Notifications
2. Ensure your desired reminder types are enabled
3. Set your preferred reminder times
1. Check your device timezone is set correctly
2. Review notification schedules in SparkFast → Settings → Notifications
3. Disable and re-enable the specific notification type
4. Ensure "Set Automatically" is enabled for your device time
1. Go to SparkFast → Settings → Notifications
2. Verify hydration reminders are enabled
3. Check that you've set your daily water goal
4. Ensure the app has notification permissions
Step 1: Restore Purchases
1. Open SparkFast → Settings
2. Tap "Restore Purchases"
3. Wait for confirmation
Step 2: Verify Subscription Status
iPhone: Settings → Apple ID → Subscriptions → SparkFast
Android: Google Play Store → Menu → Subscriptions → SparkFast
Step 3: Check Payment Method
Ensure your payment method is valid and not expired
1. Verify your subscription plan (Monthly vs Annual) in your device settings
2. Check for duplicate subscriptions
3. For refund requests:
-Apple: Report a Problem at reportaproblem.apple.com
-Google Play: Request refund in Google Play Order History
iPhone:
1. Open Settings → Apple ID → Subscriptions
2. Tap SparkFast
3. Tap "Cancel Subscription"
Android:
1. Open Google Play Store
2. Tap Menu → Subscriptions
3. Find SparkFast and tap "Cancel"
Note: Canceling stops future charges but you retain access until the current period ends.
1. Ensure the promo code is entered exactly as provided (case-sensitive)
2. Check if the promo code has expired
3. Verify the code is for your platform (iOS or Android)
4. Contact support@sparkfast.app if the issue persists
Free Up Device Resources:
1. Close other apps running in the background
2. Restart your device
3. Ensure you have at least 500MB of free storage
Update the App:
1. Check for SparkFast updates in your app store
2. Update to the latest version for performance improvements
Clear App Data (Android):
1. Settings → Apps → SparkFast → Storage
2. Tap "Clear Cache" (not Clear Data - this keeps your account)
1. Update SparkFast to the latest version
2. Restart your device
3. If crashes continue, reinstall the app:
- Note: Your data is saved in the cloud, so you won't lose your fasting history
4. Report persistent crashes to support@sparkfast.app with your device model and iOS/Android version
1. Force close the app and reopen
2. Check your internet connection
3. Restart your device
4. Reinstall SparkFast if the issue persists
1. Ensure your Apple Watch is paired with your iPhone
2. Open the Watch app on iPhone → My Watch → SparkFast
3. Enable "Show App on Apple Watch"
4. Restart both your iPhone and Apple Watch
1. Ensure both devices are connected (Bluetooth and Wi-Fi)
2. Open SparkFast on your iPhone first
3. Force close and reopen the Watch app
4. Check that both apps are updated to the latest version
If you couldn't find a solution to your problem:
1. Email Support: support@sparkfast.app
2. In-App Feedback: SparkFast → Settings → Send Feedback
3. Response Time: We typically respond within 24-48 hours
When contacting support, please include:
- Your device model (e.g., iPhone 15, Samsung Galaxy S24)
- Operating system version (e.g., iOS 17.2, Android 14)
- SparkFast app version (found in Settings)
- A detailed description of the issue- Screenshots if applicable
We love hearing from our users! If you have ideas for new features or improvements, please email us at support@sparkfast.app with "Feature Request" in the subject line.
Email: support@sparkfast.app
Response Time: We typically respond within 24-48 hours
For the fastest response, please include:
Found a bug? Please email us and share as much information as you can:
