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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →The most reliable way to block prediction-market services is layered: restrict the specific apps and URLs on each phone, add DNS filtering to your home router, and use a dedicated blocker only when its coverage and permissions fit your situation. No single control covers every browser, device, mirror domain, or mobile network. If betting is causing financial or personal harm, pair technical barriers with operator self-exclusion and qualified support.
Start with a blocking plan that matches your access
Prediction markets can be reached through a native app, a normal website, an in-app browser, or a different device using mobile data. Before changing settings, write down the services you want to stop and the ways you normally reach them. Include the exact app names and web addresses you know you use. A block aimed at one URL will not necessarily stop a different domain, and a phone setting will not automatically protect a laptop or another person’s device.
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Decide what the block must cover
- One iPhone or iPad: Built-in Screen Time can restrict selected apps and websites.
- An Android phone or tablet: On-device parental controls can block selected apps; Digital Wellbeing adds usage friction but is not a durable domain block.
- Every device on home Wi-Fi: Router-level DNS filtering can apply a policy to devices using that network.
- Other networks and mobile data: A home-router rule does not follow a device to cellular data, work Wi-Fi, public Wi-Fi, or another household.
- A stronger personal safeguard: A dedicated blocker may combine app controls, DNS, a VPN-style local filter, or accessibility permissions, but it can introduce subscription costs and new ways to bypass or disable the control.
Protect the settings from easy reversal
Use a Screen Time or parental-control passcode that the person trying to reduce access does not know. Keep router administration credentials separate from everyday Wi-Fi credentials. If another trusted adult is helping, have that person hold the passcode or administrator password. A timer that can be deleted in seconds is a reminder, not a locked barrier.
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Block prediction-market apps and sites on iPhone and iPad
Apple provides two complementary routes: block a selected app or website through Screen Time controls, and add exact URLs to the web-content restriction list. Apple’s detailed family-account instructions are written for a child’s managed account; menu names and ownership of the passcode can differ on an adult’s own device.
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Block a selected app or website for a family account
- Open Settings.
- Choose Family, then select the child’s name.
- Open Apps & Websites.
- Choose the app or website to restrict and apply the block.
Apple says a blocked app in a child account is dimmed rather than deleted. That preserves its data while preventing ordinary use. If the service has both an app and a website, block both routes; restricting the app alone leaves the browser path available.
Add a specific prediction-market URL
- On the iPhone, open Settings.
- Tap Screen Time, then Content & Privacy Restrictions.
- Open App Store, Media, Web, & Games.
- Tap Web Content and choose Limit Adult Websites.
- Under Never Allow, tap Add Website and enter the service’s exact URL.
Add every known domain and important subdomain that appears in the service’s normal sign-in, trading, and account flows. Do not assume this list blocks every embedded browser, alternate domain, mirror, or newly launched service. Test the addresses in the browsers actually used on that device.
Check the result on the device
- Try opening the blocked address in Safari and any other installed browser.
- Open links from messages or email, which may use an in-app browser.
- Check whether the native app is still installed and whether an account can be opened through a web view.
- Confirm that the Screen Time passcode is required before restrictions can be changed.
If a different browser still reaches the service, add its domains to the list and consider a network-level rule. Apple’s documented URL method is specific to the iPhone web-content setting; it is not a promise that every app with its own browser engine will obey the same list.
Block prediction-market apps and websites on Android
Android has two separate concepts that are often confused. On-device parental controls can block a selected installed app. Digital Wellbeing can impose app and Chrome site timers. Google’s explicit-content filter is narrower: it is designed for explicit material in supported Google Search and Chrome experiences, not as a customizable list of prediction-market domains.
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Use Android parental controls for a selected app
- Open the device’s Settings and locate Parental controls or the family-management section. The exact label varies by Android version and manufacturer.
- Turn on the control and create a supervision PIN that the person seeking the block cannot guess.
- Open the app-management or app-limit screen.
- Select the prediction-market app and choose the option to block it or set its allowed use to zero.
- Attempt to launch the app and verify that the restriction is active.
Google documents app limits and blocking for supervised use, but the available controls depend on the device, Android release, and account arrangement. Removing the app does not block its website, and reinstalling it may be possible if installation controls are not also restricted.
Understand the limits of Google’s web filter
Google’s documented explicit-site filter applies only in specified versions of the Google app, Chrome, and Android System WebView, or through another provider that integrates the feature. Google warns that explicit sites may still appear in other apps, browsers, or devices. It is not documented as a user-maintained prediction-market URL list, so do not treat it as a complete betting or trading-site block.
Use Digital Wellbeing as friction, not a hard block
- Open Settings and select Digital Wellbeing & parental controls.
- Open the dashboard or app-timer control.
- Set a very short timer for the prediction-market app.
- In Chrome’s site-timer area, add the relevant website and set a limit if your version supports it.
Google states that app timers reset at midnight and that a user can delete a timer to use the app again before midnight. That makes Digital Wellbeing useful for adding a pause or daily limit, but unsuitable as the only control when you need a locked, durable block.
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Apply a home-network DNS block
A DNS filter works at the point where a device asks the network to translate a domain name into an address. Configuring the service on a router can cover phones, tablets, computers, televisions, and other devices connected to that Wi-Fi. It does not automatically cover cellular data or a different network, and it generally works by domain rather than by understanding every page inside an app.
What a router policy can and cannot do
- Strength: One policy can cover many household devices without installing an app on each one.
- Weakness: A device using mobile data, a separate Wi-Fi network, or a manually chosen alternative DNS service may bypass the home rule.
- Coverage risk: A category called gambling may not include every prediction-market domain, a new service, a mirror, or a service classified differently.
- Maintenance: New domains must be added when they appear, and blocked services should be retested after router or DNS changes.
Configure a DNS service on a compatible router
- Create an account with a DNS provider that offers gambling-category controls and custom deny lists.
- In the provider dashboard, enable its gambling-blocking category where available.
- Add the exact prediction-market domains you identified, using the provider’s supported syntax.
- Install the provider’s router configuration. Its documentation describes router deployments and lists OpenWrt among supported platforms.
- Save the router settings, reconnect a test device, and confirm that blocked domains fail while ordinary sites still load.
- Repeat the test on every device type and browser used in the household.
An OpenWrt-compatible Wi-Fi router is relevant only if you need hardware that can run the planned DNS setup and you are comfortable configuring it. No particular router model is established as tested for this purpose. A router purchase is an enabler for the policy, not a standalone solution.
Test bypasses deliberately
- Turn off Wi-Fi and try the same address over mobile data.
- Check whether the device has a private DNS setting, VPN, or security app that routes around the router.
- Try an alternate browser and an in-app link.
- Verify that guests and secondary Wi-Fi networks use the same DNS policy.
If a service loads only on mobile data, extend the controls to the device itself or use a managed filtering app that operates away from home.
Consider a dedicated blocker only after checking coverage
Third-party tools can combine app blocking, domain lists, local VPN filtering, or Android accessibility controls. Their practical value depends on whether they name the services you need, whether they cover the devices and browsers you use, and whether you can prevent easy uninstall or permission removal. Product pages are vendor claims, not independent efficacy tests.
iPhone option: Untilt
Untilt’s iPhone product page says it blocks betting apps and sites and specifically names Kalshi and Polymarket. The page reports “Coverage updated July 2026” and lists 50 apps and 50 sites. It describes one free hour followed by a Pro offering and says the product is not treatment. These are changeable vendor statements; verify current coverage, pricing, supported iOS version, and how the block is protected before relying on it.
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Because the tool is iPhone-only, it cannot protect an Android phone, a computer, or a device using another person’s account. Check whether its site list includes every domain you use and whether Safari, alternate browsers, and links opened inside other apps are covered.
Android option: Bet Block
The Google Play listing for Bet Block describes gambling-site blocking through DNS and app blocking using Android Accessibility controls. It also describes use of Android’s VPN permission. The listing does not identify Kalshi or Polymarket, so do not assume those services are covered without current, separate verification.
Review the permissions before installation. A local VPN can inspect or route network traffic on the device, while Accessibility access can allow an app to observe and act on the screen. Use a passcode or accountability arrangement if the product supports one, and check what happens if the app is stopped, uninstalled, or its permissions are revoked.
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| Check | What to verify |
|---|---|
| Coverage | Are the exact app names, domains, sign-in pages, and alternate domains listed? |
| Where it works | Does it cover one device, selected browsers, all home devices, cellular data, or only a particular operating system? |
| Durability | Can the user uninstall it, disable a VPN or Accessibility permission, remove a timer, or change the DNS setting? |
| Permissions | Does it require Screen Time management, a local VPN, Accessibility access, device administration, or an account PIN? |
| Cost and limits | Is there a free allowance, subscription, device cap, regional restriction, or trial that expires? |
| Support | Does the product clearly state that it is a technical aid rather than gambling treatment? |
Compare the main approaches
| Approach | Coverage | Resistance to bypass | Best use | Main limitation |
|---|---|---|---|---|
| iPhone Screen Time | Selected apps and specified website URLs on the managed device | Good when a separate passcode is held by a trusted person | Free first step for iPhone or iPad | Menu paths vary; alternate browsers and domains require testing |
| Android parental controls | Selected installed apps on supported supervised devices | Depends on PIN and installation controls | Blocking a known Android app | Does not by itself create a complete prediction-market URL list |
| Digital Wellbeing | App and Chrome usage timers | Low; timers can be deleted before midnight | Adding delay and limiting routine use | Not a locked, comprehensive block |
| Router DNS | Devices using the configured home network | Moderate; weaker on mobile data or alternate DNS | Household-wide coverage | Category lists may omit services and future domains |
| Dedicated blocker | Varies by product, operating system, browser, and domain list | Varies with uninstall and permission controls | Extending protection beyond built-in settings | Paid plans, privacy permissions, and vendor-claimed coverage |
Verify that the block actually works
Do not judge success by whether an icon disappears. Test the complete access path after every change.
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- Helpful in various ways
- Try the service’s main website in the default browser.
- Try each alternate browser installed on the device.
- Open a saved link from email, messaging, or a social app.
- Launch the native app, then try reinstalling it if installation is still allowed.
- Switch between home Wi-Fi, mobile data, and another Wi-Fi network.
- Check a computer or tablet that shares the same account but not the same controls.
- Record which route succeeded and add that app, domain, network rule, or permission restriction to the plan.
Common failures and fixes
- The app is blocked but the site opens: Add the exact site URL to the device restriction and DNS deny list.
- The home network blocks the site but mobile data works: Add an on-device control or a blocker that operates over cellular connections.
- One browser is blocked and another is not: Check browser-specific settings and add the second browser’s route to the plan.
- A timer is ignored: Replace it with a Screen Time or parental-control restriction protected by a separate PIN.
- A DNS category misses the service: Add the known domain manually and retest; do not assume the category is exhaustive.
- A third-party blocker stops working: Check whether its VPN or Accessibility permission was revoked, whether the app was force-stopped, or whether a subscription or device limit changed.
Use self-exclusion and support when gambling is causing harm
Software controls can slow access, but they do not address debt, compulsive behavior, or the reasons someone is betting. The UK Gambling Commission says people who spend too much time or money gambling can ask to be self-excluded. Its guidance describes agreements with individual operators and multi-operator arrangements, including GAMSTOP Online for online operators. Eligibility and coverage depend on the jurisdiction and the operators involved, so readers outside the UK need their local regulator or equivalent program.
Self-exclusion is a commitment that requires follow-through. The Commission states: “It is your responsibility to stick to your self-exclusion agreement.” Ask the relevant operator or program how accounts, marketing, payment methods, and newly opened accounts are handled. Contact a qualified gambling-support service, health professional, or trusted person if betting is affecting finances, relationships, work, or safety. Keep the technical block in place while arranging that support rather than treating the block as treatment.
Maintain the block over time
- Review the app list, URL list, and DNS deny list monthly or after any new service appears.
- Install operating-system and router updates, then repeat the access tests.
- Change the Screen Time, parental-control, and router administrator credentials if they become known.
- Check new browsers, devices, guest networks, and mobile-data use whenever your setup changes.
- Keep a written list of blocked services and the person who controls the credentials.
- Reassess paid tools when a trial ends, coverage changes, or a vendor stops supporting your operating system.
A practical sequence is to begin with the free built-in control for each phone, add exact URL rules, apply a home-router DNS policy, and then fill the remaining gaps with a blocker whose current coverage you have verified. That sequence gives you device-level protection, household coverage, and a clear way to identify bypasses without assuming any one layer is complete.
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