Umbra Enterprises, LLC

Tangle Nine privacy

Tangle Nine for iPhone and iPad, operated by Umbra Enterprises, LLC. This notice covers the Apple app. Website analytics and advertising are separate.

Your Puzzle Progress

Ordinary puzzle progress, timing, settings and a local backup stay on your device. No Tangle account is required. Saves do not automatically sync across devices. Exported save files include private ranking and challenge keys; keep them for your own devices. Updating under the same app identity keeps saves. Deleting the app can erase local progress. A signed receipt records access earned by starting a future Daily on its free day. You may transfer that receipt with your saves; it does not grant a Plus subscription.

Online Game Features

The app connects to tanglenine.com for puzzle updates and optional rankings and friend challenges. Cloudflare processes these requests, including IP addresses and ordinary network information. Tangle's game service uses short-lived salted network hashes and counters to limit abuse. Provider processing is separate from on-device saves.

Rankings

Posting a score sends your completed board, active time, checks and hint penalties. The server validates and discards the submitted board, then retains the score, posting time and a hash of a random private per-puzzle credential. Scores have no automatic expiration. Use Rankings → Remove my score while you still have the private key. Clearing local data does not remove an online score; lost private keys cannot be recovered.

Friend Challenges

Creating or joining a challenge sends random participant credentials and an eligible result. The server stores credential hashes, the public puzzle and challenge scores. Anyone with the invitation can view its unnamed results. Challenge rooms expire seven days after creation. A participant can withdraw a result; the creator can revoke the invitation and delete the room. These actions leave local puzzle history intact.

Advertising

The free Apple app may show one Google AdMob banner beneath the controls after a newly completed puzzle. Plus members do not receive app ads. Active play, replays, revealed solutions and unresolved membership status do not request an ad. Ads never award hints, change a score or interrupt the board. If an ad or its privacy checks cannot load, play continues without it.

Google Data And Privacy Choices

When advertising is available, Google processes consent information and may process IP-derived approximate location, device identifiers, diagnostics, performance information and ad interactions. The app requests non-personalized ads, disables Google’s publisher first-party ID, and does not request access to Apple’s advertising identifier through tracking permission. These choices do not mean Google receives no data. The Mobile Ads SDK starts only after the consent checks and an eligible free completion. See Google’s linked privacy information.

Control Your Choices

Where available, Google presents consent or opt-out choices before an ad. Use App Settings → Ad Privacy → Privacy Choices to revisit them. If privacy verification fails, the app skips the ad. A Plus member can revisit previous ad choices without enabling ads. Supported regional messages determine the choices shown.

Purchases

Apple handles subscriptions and payment. The app sends Apple-signed transaction information to Tangle’s service, hosted by Cloudflare, which verifies current membership with Apple before granting or restoring paid content. Transaction evidence is not included in saved-game exports or analytics. Downloaded Plus puzzles and signed offline permissions are stored separately on your device and excluded from save exports and backups; the offline cache contains a transaction fingerprint rather than the signed transaction. Apple Sandbox and TestFlight purchases are test transactions. No card information is entered into Tangle. Restoring purchases restores eligible membership access, not saved progress. Apple membership does not remove website ads.

Sharing, Reminders And Sound

Sharing opens Apple's share sheet; you choose the destination. Reminders are optional local notifications. Sounds are bundled audio; there is no microphone access. The Apple app does not include the website's Umami tracker or Firebase Analytics.

Support And Privacy Requests

Contact info@umbra-us.com for support, access or deletion questions. We receive the contact details and information you choose to send. Support correspondence remains in our business email system; you can request deletion. Please do not send private save files, payment details or account passwords with ordinary feedback. Online ranking and challenge removal controls are described above.

Google privacy policy

How Google uses information from apps

Cloudflare privacy policy

Apple privacy information