LESSICO

YOUR DATA

Lessico has no accounts and shows no ads. It never asks for your name, your email, or anything else that identifies you personally. What it does send, and to whom, is listed below.

Your progress (completed levels, reviewed words, audio settings, and language choices) is saved only on your device. Deleting the app deletes this data.

USAGE ANALYTICS

So that we can tell where people get stuck and make the game better, Lessico records a small number of events: opening the app, reaching the language screen, finishing the tutorial, finishing the practice room, finishing the first level, reaching the level menu, being shown the subscription screen, closing it, and starting a subscription. Each one is the name of the moment and the time it happened, sometimes with one detail about it, such as whether the first level was won or which plan was chosen.

These events are labelled with a random identifier created the first time you open the app. It is not your device's identifier and it is not linked to any account, name or email. Like any request over the internet, each event reaches PostHog from your IP address; location lookup is switched off, so no country or city is worked out from it.

This data is processed on our behalf by PostHog, on servers in the European Union. It is used only to improve Lessico. It is never sold, never shared with advertisers, and never combined with data from anywhere else.

ADVERTISING MEASUREMENT (ONLY IF YOU ALLOW IT)

Lessico is sometimes advertised on TikTok. So that we can tell whether those ads actually bring anyone to the game, the app includes TikTok's measurement kit. Apple calls this tracking, so the first time you open Lessico, iOS asks whether you allow it.

If you tap "Ask App Not to Track", the kit never starts and nothing is sent to TikTok. Apple's own anonymous system (SKAdNetwork) may still tell TikTok that an install came from one of its ads, without identifying you or your device.

If you tap "Allow", the kit sends TikTok:

your device's advertising identifier and its vendor identifier, a random ID TikTok's kit creates, and your IP address;
your device model, iOS version, app version, browser user agent, and language and region settings;
that the app was installed, that it was opened, and whether it was opened again the next day;
when a subscription starts, renews or is restored: the App Store's record of that transaction, which includes the plan, its price and currency, its dates, the App Store country, and Apple's transaction references (never any card or payment detail);
the kit's own technical reports, such as its performance and, if it crashes, a crash report;
if TikTok switches the option on from its side, a snapshot of Lessico's screen at the moment of each of these events. Lessico shows nothing personal on screen, only the game. The kit's automatic tracking of your taps is switched off in Lessico and cannot be switched on remotely.

TikTok uses this to connect your install of Lessico to an ad you were shown. It goes to TikTok's servers in the United States and is governed by TikTok's own privacy policy. You can change your answer at any time in your iPhone's Settings, under Privacy & Security, then Tracking.

Either way, we do not sell your data, we do not build profiles, and we do not advertise to you inside the game.

PURCHASES

The Lessico Pro subscription is handled by Apple through the App Store. Lessico never sees or stores any payment information. Apple's own privacy policy describes how that data is processed.

CONTACT

Questions? Write to Morgan Waddington: lessicoapp@gmail.com