Privacy policy

This notice describes the current data practices of the game and the website. When those practices change, we will update this notice.

This policy covers the Narrow Front: WW2 Strategy app for iOS and Android (the "game") and the website narrowfront.matterwardlabs.com (the "site"). Both are run by Matterward Labs Private Limited ("we").

The short version

You can play without an account. The game signs in to Google Play Games on Android or Game Center on iPhone when it starts, unless you choose Sign out. Signing in connects your same-platform cloud save, achievements and a place on the public leaderboard. You can delete that online account in the game, together with its cloud save, its leaderboard and season entries, its gems and its place in THE WORLD.
Signed-in players appear on the public leaderboard with their commander name, total XP and an avatar the game assigns, and have a public commander card that also shows their league, their ranked record and the army they last brought to a ranked match. You can turn both off in the game with one switch.
The game sends anonymous usage events and crash reports to Google Firebase, and shows optional ads through Google AdMob.
If you buy something in the game (a crate, a resource pack, a cosmetic or gems), Google Play or the App Store handles the payment. Our purchase server checks the store's record of the purchase before it is delivered. We never see your card or payment details.
The site has no email signup form and uses analytics only if you say yes.
We do not sell your data.

What the game collects

What	Why	Who processes it
App usage events, such as the app opening, a battle starting and ending, and whether it was won	To see which parts of the game are played and where players get stuck	Google Firebase Analytics
Crash reports: the device model, operating system version, app version and what the app was doing when it crashed	To find and fix crashes	Google Firebase Crashlytics
Native platform account identifiers and a Firebase user identifier, when you are signed in	To connect your platform identity to your private game save	Google Play Games or Apple Game Center, and Firebase Authentication
Campaign progress, army and inventory, commander name, and achievements, when signed in	To back up progress and restore it on another device on the same platform	Google Cloud Firestore; achievements are also reported to the connected platform
Commander name, total XP, an avatar the game assigns, and your rank, when signed in and Show me on the leaderboard is on; during a season, your season score, league and division; names you report, and which player reported them	To show the public leaderboard, which anyone playing the game can see, and to review reported names	Our leaderboard service on Cloudflare (Workers and D1)
The advertising identifier (Android Advertising ID or Apple IDFA), device and interaction data, when you choose to watch a rewarded ad	To show the optional reward ad and measure it	Google AdMob
Purchase records, when you buy a crate, a resource pack, a cosmetic or gems: the product, the store's purchase token or signed transaction, order or transaction number, country or region, purchase time, a random account tag the game creates, an app-integrity token, and your Firebase user identifier if you are signed in	To check that a purchase was paid before delivering it, to prevent fraud, and to handle refunds	Google Play or Apple (payment), Unity In-App Purchasing in the app, and our purchase server on Cloudflare Workers
Your gem balance and its history (gems bought, earned, spent and refunded), with your Firebase user identifier, when signed in	To keep your gems on your account across devices, and to take back refunded gems	Our purchase server on Cloudflare (Workers and D1)
In THE WORLD, when signed in: your commander name, your camp's layout, your plot on the shared map, and your marches and their results	To run the shared map, where the other commanders on it can see your name and camp (there is no chat)	Our world server on Cloudflare (Workers, Durable Objects and D1)
In online matches, when signed in: your commander name and avatar, the cards you bring, the orders you give during the match and its result; a skill rating, which is never shown; and, for a ranked match, how long your phone takes to reach each of our server regions, the level of each card you bring, the cosmetics you wear, the store's reference numbers for crates your save holds, and whether Show me on the leaderboard is on	To run the match on a server near both players, to pair players of similar skill and army strength, to check results and that an army's card levels are ones the account could have earned or bought, to pay the match's coins and crates, and to add ranked results to your season score. Your opponent sees your commander name, avatar, command level, league and the levels of your cards (there is no chat)	Our match server on Cloudflare (Workers, Durable Objects, D1 and Containers); our purchase server confirms the crate reference numbers
Your commander card, when signed in and Show me on the leaderboard is on: your commander name, avatar and avatar frame, command level, league and recent league results, season medals, your ranked record (matches, wins, losses, draws and best winning run; never the skill rating), the army you last brought to a ranked match with its card levels, and the month you first signed in	To show your card to other commanders who open it from the leaderboard, a season division or a ranked match	Our leaderboard service on Cloudflare (Workers and D1)

Ads in the game are opt-in: an ad plays only when you tap to watch one for a reward. In the European Economic Area, the United Kingdom and Switzerland, the game asks for your consent through Google's consent message before any personalised ads are shown. You can review or change that choice at any time in the game: open Settings and tap Options under Ad privacy.

On iPhone, the game also asks for permission to track, through Apple's App Tracking Transparency prompt, before it loads an ad. If you allow it, AdMob can use your device's advertising identifier (IDFA) to choose and measure ads. If you decline, ads still play without it. You can change this at any time in the iPhone's Settings > Privacy & Security > Tracking.

Guest progress stays on your device; it is not uploaded to a cloud save. Deleting the app can remove that local progress.

When you are signed in, the game keeps an additional private save in Cloud Firestore in Mumbai, India. Campaign progress, army, commander name and achievements sync together. Volume and device display preferences stay local. Android and iPhone saves are separate. You can earn achievements offline; reporting resumes after connection.

The game tries this sign-in each time it starts, so signed-in players join the leaderboard without a tap. If you choose Sign out in Settings > Account · Cloud save · Achievements, it stops signing in automatically until you sign in again.

Disconnecting stops cloud access but does not delete an existing cloud save. To delete your online account and its cloud save, sign in and open Settings > Account · Cloud save · Achievements > Delete account in the game. This removes your leaderboard and season entries, your commander card, your place in THE WORLD, your online-match rating and ranked record, your gem balance and its history, the cloud save and your Firebase account at once. Records of online matches you played stay without your name or account identifier. Gems on the account, bought or earned, are lost with it. Records of purchases you made stay with our purchase server without your account identifier, because refunds and fraud checks need them. Progress on your device stays, and you can keep playing as a guest. Achievements already sent to Google Play Games or Game Center stay with those services. You can also ask us to delete your cloud progress using the address below.

The leaderboard

When you are signed in, the game adds you to a public leaderboard. It shows your commander name, your total XP, your rank and an avatar picture that the game assigns to you; you cannot choose it. Anyone who plays Narrow Front can see the top 100. We run the leaderboard on Cloudflare (Workers and a D1 database), separately from your cloud save. It stores your Firebase user identifier so that only you can change your entry, and shows other players only a coded id instead. To prevent cheating, it also keeps the score your game last claimed and when your entry last changed.

A name that breaks our naming rules is shown as a generated callsign, such as "FALCON 27". Players can report a name they find offensive. We review reports and may rename or remove an entry.
To leave the leaderboard, open Settings > Account · Cloud save · Achievements and turn off Show me on the leaderboard. This deletes your entry and stops the game from adding you again from that device. Turning it back on adds you at the next sync.
Delete account also deletes your leaderboard entry, together with any reports you made or that were made about your name.
Hiding another player's row affects only your own device.

Your commander card

Every commander on the leaderboard has a public card. Anyone who plays Narrow Front can open it from your leaderboard row, your row in a season division or the result of a ranked match against you. It shows your commander name, avatar and avatar frame, your rank and command level, your league, your season medals, your ranked record (matches, wins, win rate and best winning run), the army you last brought to a ranked match with each card's level, and the month you first signed in. It never shows your skill rating, your purchases, your coins or gems, or anything that identifies you outside the game; other players see only a coded id.

Your card follows Show me on the leaderboard. Turning the switch off removes your leaderboard entry and your card at once, and other players who try to open it are told the commander keeps their record private.
Delete account deletes your card with your leaderboard entry.
The game keeps a list of the last twelve commanders you met in ranked matches (their names, avatars, leagues and how each match ended) on your device only, so that you can open their cards again. It is deleted with Delete account and when the game's data is cleared.
Some opponents in ranked matches are AI commanders run by the game. They have cards like a player's and are never on the leaderboard or in a season division.

What the site collects

Analytics. Only if you choose "Allow analytics", the site uses Google Analytics to count page views and a few actions, such as opening media or following a store link. If you choose "No thanks", no analytics events are sent.
Hosting. The site is served by Firebase Hosting. Like any web server, it processes your IP address and browser details to deliver the page.
Your preferences. The site stores analytics and display preferences in your browser's local storage.

Earlier launch email signups

Email signups on this website are now closed. If you previously signed up, your existing record contains your email address, chosen phone platform, consent to one launch email, the consent version and latest submission time. Those records remain private in Google Cloud Firestore in Mumbai, India, and are used only for the launch email you requested. You can request removal using the contact below.

How long we keep it

We keep addresses from earlier launch email signups until the requested email has been sent, then delete them. You can also request removal at any time using the contact below. Analytics and crash data are kept for the default retention periods of the Google services listed above. A leaderboard entry is kept until you turn off Show me on the leaderboard or delete your account. Your gem balance and history, your place in THE WORLD and your online-match rating are kept until you delete your account. The orders given in an online match are kept for seven days after it ends, to check its result; a record of the match itself (the battlefield, the result and who played) is kept, and deleting your account removes your name and identifier from it. Purchase records are kept for refunds and fraud checks; deleting your account removes your identifier from them.

Your choices and rights

To have an earlier launch email signup removed, or to ask what we hold about you, write to the address below. We will answer within 30 days.
You can leave the public leaderboard at any time with Show me on the leaderboard in the game, or delete your account and your entry with Delete account.
You can reset your device's advertising identifier, or opt out of ad personalisation, in your phone's settings. On iPhone, you can also turn tracking off for Narrow Front under Settings > Privacy & Security > Tracking.
Depending on where you live, you may have further rights, such as correcting your data or complaining to a data-protection authority.

Children

Narrow Front is not directed at children under 13, and we do not knowingly collect their personal data.

Changes

If this policy changes, the new version will be posted here with a new date.

Contact

Matterward Labs Private Limited · admin@matterwardlabs.com

Last updated: 2026-11-11