Contact us
Email hello@suenainteractive.com. We usually reply within 2–3 business days. It helps to include your iPhone model, iOS version and the app version shown at the bottom of Settings (for example “CombDoku v1.5 (20)”). If your question is about your leaderboard profile, include your display name.
Purchases and subscriptions
Restore purchases
Open Settings → Purchases → Restore Purchases, or tap Restore on the Store screen. This brings back CombDoku+ and Remove Ads on a reinstall or a new iPhone signed in to the same Apple Account. Starter and Pro packs are consumable, so they are not restored by Restore Purchases.
Manage or cancel CombDoku+
Go to Settings → Purchases → Manage CombDoku+ (or Store → Manage subscription). Both open your Apple subscriptions page, where you can change plan or cancel. Settings also shows whether you’re subscribed and when the plan renews or ends. Apple handles billing and refunds; you can request a refund at reportaproblem.apple.com.
What each purchase does
- CombDoku+ ($1.99/month or $11.99/year)
- Unlimited Hints, no banner or between-level ads, 15 Reveals a month (yearly: 180 up front), double Hints and Reveals from packs, 1.5× streak rewards, and a CombDoku+ badge that other players see on leaderboards. Eligible new subscribers get a 7-day free trial.
- Remove Ads ($2.99, one time)
- Removes banner and between-level ads. No power-ups or other perks.
- Starter Pack ($0.99) / Pro Pack ($1.99)
- 4 Hints + 2 Reveals, or 12 Hints + 6 Reveals.
Rewarded ads (Revive, or a free Hint or Reveal when you have none) stay available and optional for everyone, including subscribers. Prices are US App Store prices and vary by country.
CombDoku+ subscription terms
- CombDoku+ is an optional auto-renewing subscription in CombDoku, offered as monthly or yearly plans. The price and billing period are shown in the app before you confirm.
- New subscribers may get a 7-day free trial (eligible new subscribers). If you don't cancel before the trial ends, the subscription starts and renews automatically.
- Payment is charged to your Apple ID when you confirm the purchase (or when a trial ends).
- The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Your account is charged for the next period within the 24 hours before it ends.
- You can turn off auto-renew or cancel any time in your store account settings. Cancelling keeps CombDoku+ active until the end of the period you've paid for. Uninstalling the app does not cancel a subscription.
- Refunds are handled by Apple under their policies; we can't issue store refunds ourselves.
Manage or cancel
- Apple subscriptions (or Settings → your name → Subscriptions)
Refunds
Name, avatar and country flag
Tap your profile badge on Home to change your display name (up to 16 characters), avatar (30 to choose from), background color and country.
New players get a fun default name and avatar, and a country flag taken once from your App Store region (or your device region). The flag is shown on leaderboards by default.To hide it, open the country picker and choose Prefer not to show. CombDoku never uses GPS or your precise location.
Other players can see your display name, avatar, background, flag (unless hidden), CombDoku+ badge, points, levels cleared, lives saved and total play time.
Progress, reinstalling and resets
There is no sign-up. Behind the scenes CombDoku creates an anonymous player ID so your leaderboard scores stay yours. That ID and your profile are kept in your iPhone’s Keychain, and your completed levels, power-ups and streak sync through iCloud when iCloud is on.
- Deleting and reinstalling usually brings your progress and profile back. That’s expected: Keychain and iCloud data survive an uninstall.
- There is no “reset progress” option in the app.
- The onboarding is skipped after a reinstall. Replay it any time from Settings → Help & Account → How to Play.
Deleting your data
Uninstalling does not delete everything. Your leaderboard profile and scores are on our servers, Keychain items stay on your iPhone, and iCloud data stays in your iCloud account.
- Server data (profile, leaderboard entries, Daily Challenge results): email hello@suenainteractive.com with the subject “CombDoku data deletion” and your display name. We’ll delete it and confirm by email.
- iCloud data: on your iPhone go to Settings → [your name] → iCloud → Manage Storage (or Manage Account Storage), find CombDoku and delete its data.
- Hide your flag or change your name any time from your profile, without deleting anything.
More detail is in the CombDoku privacy policy.
Where to find things
- Appearance, sound, haptics
- Settings → Preferences (System, Light or Dark)
- Reminders
- Settings → Reminders: Streak, Daily Challenge, Daily Leaderboard (local notifications only)
- Game Center
- Settings → Game Center → Achievements / Leaderboards
- How to Play
- Settings → Help & Account → How to Play
- What’s New
- Settings → What’s New
- Challenge history
- Home → challenge history (last 30 days, read-only)
- Lane highlight
- Press and hold any cell on the board
New to the rules? Read how to play honeycomb sudoku.
Common questions
What are Hints and Reveals?
They are CombDoku’s only two power-ups. A Hint looks at your current board and shows one card: the technique to use, a one-line reason and a ghost preview, with Apply and Got it buttons. If no move exists, nothing is spent. A Reveal places the most useful bear for you and claws every cell it rules out. Neither costs a heart. There is no “Scan” power-up.
Why did a bear cost a heart when it broke no rule?
Every bear is checked against the puzzle’s one solution. A bear on a wrong cell costs a heart and leaves a red claw on that tile, even if the conflict wouldn’t show until later. Claw marks (single taps) never cost hearts, so claw first and place bears last.
How does Revive work?
When you run out of hearts you can watch a rewarded ad to get one heart back with your board kept exactly as it was. Revive is available once per attempt. You can also Retry (the board resets; any given bear stays) or go Home.
Is the Daily Challenge connected to my streak?
No. Your streak is a daily check-in: it grows each local calendar day you open CombDoku, whether or not you solve anything. The Daily Challenge is a separate shared board with a percentile ranking.
When do the challenge and leaderboards reset?
The Daily Challenge rolls over at 12:00 UTC. The daily leaderboard resets at 00:00 UTC, and the weekly board runs Monday to Sunday (UTC).
Why is there a limit on free Hints and Reveals from ads?
Since version 1.3, watching an ad for a free Hint or Reveal has a shared 30-minute cooldown and a limit of 8 per local day. A clock badge shows while a limit is active.
Can I undo a move?
There is no undo button (it was removed in 1.1). Tap a claw or a bear you placed to remove it.
Which devices are supported?
iPhone with iOS 26.5 or later. CombDoku also runs as an iPhone app on Apple silicon Macs and Apple Vision Pro. An Android version is coming soon.