LensLab help

A photography masterclass with 10 chapters, an 840-term photography dictionary and 8 interactive tools and calculators.

Yes. Lessons, the dictionary and all calculators work completely offline. Only Ask AI needs an internet connection.

Yes. Complete the lessons and chapter tests to track your progress and earn completion certificates.

Exposure triangle simulator, ND filter long-exposure calculator with timer, astrophotography 500 Rule and NPF, depth of field, golden and blue hour estimator, histogram trainer, print size, and time-lapse storage.

Yes. Bookmark any lesson and keep your own notes as you learn.

LensLab works on Android 8.0 or newer.

Ask AI explains any topic in plain words, built around your own question. It is an extra to the dictionary, which works on its own without it.

Only for Ask AI and purchases. Sign in with your Google account in the app. Everything else works without signing in.

Your first 5 Ask AI questions in LensLab are free.

To keep things fair, you can ask up to 10 questions a minute and 100 a day, each up to 2,000 characters.

AI answers can sometimes be wrong, so check anything important. Please email us the question and the answer at infyoninnovations@gmail.com so we can improve.

No. Your question is sent to our AI provider only to create the answer, and we do not store its text. See the privacy policy.

This is usually temporary, for example during very high demand. Please try again a little later. You are never charged for an answer that fails.

You can add a plan or a top-up inside the app. The dictionary itself stays free to use.

A plan gives you 1,000 questions for each billing period. The count resets when your plan renews, and unused questions do not carry over. Plans renew automatically through Google Play.

Top-ups are a one-time purchase. Their credits do not expire while your account exists. Questions use free questions first, then your plan, then top-up credits.

Open the Google Play Store, tap your profile picture, then Payments & subscriptions > Subscriptions, choose LensLab and tap Cancel. You keep access until the end of the period you have paid for.

Make sure you are signed in with the same Google account you used to buy, are connected to the internet, and reopen the app. If it is still missing, email us at infyoninnovations@gmail.com with the order number from your Google Play receipt (it starts with GPA).

Within 48 hours of buying you can request a refund from Google Play under your Google Play order history. After that, email us with your order number. If a purchase is refunded, its credits are removed.

Yes. Your credits and plan belong to your account, not your phone. Install LensLab and sign in with the same Google account.

In the app, go to Settings > Account > Delete account, or follow these steps. This removes your account and data from all Lumnon apps.

Everything is explained in the LensLab privacy policy.

Read the LensLab terms of use.