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Privacy

Last updated 17 October 2026

Patmos Software does not collect your personal information. There are no accounts with us and no servers of ours. What you do in our apps stays on your device. The one exception is advertising in Shikaku from version 2.0 and in RunFlow, which is provided by Google and described below.

This policy covers the apps published by Patmos Software. Where an app behaves differently, it is described in its own section below.

What we collect

Nothing. Our apps have no accounts of ours, no sign-in of ours, and no servers of our own. We do not collect, transmit, sell, or share personal information, and we have no way to identify you.

We do not use third-party analytics. The only third-party service that collects data in any of our apps is Google's advertising in Shikaku and RunFlow, covered in the next section.

Advertising

Two of our apps show ads provided by Google AdMob.

Shikaku, from version 2.0, is free to play. Ads appear as a banner and occasionally full screen between levels, and you can choose to watch a video for a hint or a second chance. A one-time purchase, Remove Ads, turns them off.

RunFlow is free and has no purchases. Each workout uses a boost, and you can choose to watch a video to earn one back. A full-screen ad sometimes appears after you save a workout. Ads are never shown during a run.

To show ads and measure them, Google's software in these apps collects, and Google processes:

This data goes to Google, not to us. We see only totals in AdMob, such as how many ads were shown and what they earned, and nothing that identifies you. Google's use of it is covered by Google's privacy policy and how Google uses information from apps that use its services.

Your choices

Nothing in either app's own code transmits anything. Your progress, workouts, settings and statistics stay on your device, as described below.

What stays on your device

Apps store their own data locally so they work between sessions — your progress, settings, and similar. This is held in the app's private storage on your device and is never sent to us.

It is included in your device backups if you have those enabled, which is handled entirely by Apple under Apple's privacy policy. Deleting an app removes its local data. The one exception is RunFlow's boost count, described in its section below.

Purchases

Where an app offers in-app purchases, they are processed entirely by Apple. We never see or handle your payment details. Apple tells the app only whether a purchase is valid, so that what you bought can be unlocked.

Purchase records are held by Apple under their terms. If you need a refund, that is requested through Apple rather than through us.

Game Center

Some of our apps offer leaderboards through Game Center, which is Apple's service, not ours. It is entirely optional — the game plays exactly the same with it switched off, and nothing prompts you to turn it on.

If you do use it, the app sends your score to Apple so it can be ranked. Apple shows the nickname and avatar you chose for your Game Center profile, which is the name other players see on a leaderboard. That profile belongs to you and Apple, and is managed in Settings › Game Center on your device.

We never receive your Apple ID, your email address, or any way to contact or identify you. We see only what any other player sees: the public nicknames and scores on a leaderboard. Game Center data is handled under Apple's privacy policy, and you can leave a leaderboard or turn Game Center off at any time.

Children

Our apps are suitable for general audiences and do not knowingly collect information from anyone, including children. We collect nothing ourselves, so there is nothing held about a child or anyone else. Ads in our apps are limited to content rated suitable for general audiences.

Your rights

Rights under GDPR, the Australian Privacy Act and similar laws — access, correction, deletion, portability — apply to personal data an organisation holds about you. We hold none, so there is nothing for us to disclose or delete. Data kept on your device is under your control and is removed when you delete the app. For advertising data held by Google, use the app's privacy choices setting or Google's My Ad Center.

Apps

Shikaku

A logic puzzle game. Progress, settings, and play statistics are stored on your device only. The play statistics shown in Settings are for your own interest — they are never transmitted anywhere.

Shikaku offers optional in-app purchases, handled by Apple as described above. Its weekly leaderboard is computed on your device and never sent anywhere; it does not use Game Center. From version 2.0 it shows ads from Google AdMob, as described under Advertising in Shikaku; earlier versions contain no advertising.

RunFlow

A running app — interval workouts, training plans, and a record of your runs. Everything it saves is stored on your device only: your workouts and how they went, the interval sessions you build, which training plan you are on, and your settings.

RunFlow is free, has no in-app purchases, and does not use Game Center. It shows ads from Google AdMob, as described under Advertising. It does not use your location: the distance of a run is whatever you type in.

Two parts of RunFlow ask your permission, and both are optional: tracking for ads, described under Advertising, and Apple Health.

Apple Health. If you allow it, RunFlow saves your completed workouts to Health — the workout itself, walking and running distance, and active energy burned — so your runs appear alongside the rest of your activity. With your permission it also reads heart rate, resting heart rate, distance and your workout history, which is what lets it show your heart rate during a run and work out your training zones. That reading happens on your device and is used there. It is never sent to us or to Google, and we have no way to receive it. You choose each type individually when the app asks, and you can change any of them later in the Health app under Sharing › Apps. Health data is never used for advertising or marketing.

Boosts. How many boosts you have is kept in your device's secure Keychain, so that deleting and reinstalling the app does not reset it. It is a count and a few dates, holds nothing about you, never leaves your device, and is removed if you erase the device.

Deleting RunFlow removes everything else it stored on your device. Anything it wrote to Apple Health stays in Health, where you can delete it yourself.

Changes

If this ever changes — if an app starts collecting anything at all — this page will be updated before that version is released, and the date at the top will change. We will not quietly start collecting data under a policy that says we do not.

Contact

Questions about privacy, or about anything else: hello@patmossoftware.com.