Help & FAQ

Tap the add button and choose Photo to take one, or Import to pick one from your library. Undertone reads its colors on your device and opens the analysis, where you can switch between the modes.

Each mode reveals a different layer of the same image. Original is the untouched photo, Temperature maps warm against cool, Values strips it to light and dark, and Saturation shows where color is vivid and where it has gone muted. Composition overlays guides like the golden ratio and rule of thirds, and Contrast shows where the eye lands first. Every image also gets its color palette and its harmony. Composition and Contrast come with Premium, which also lets you tint the value bands in the image's own colors and set how many tonal levels you see.

Yes, free to start, and there is no subscription. Premium is a one-time purchase, shown in the app in your local currency. The free version analyzes as many images as you like, with the Original, Temperature, Values, and Saturation modes, the color palette and harmony for every image, and your last 20 analyses kept in history. Premium adds the Composition and Contrast modes, tinted value bands with adjustable tonal levels, and unlimited history.

iPhone, iPad, Mac, and Android. Premium is a one-time purchase that unlocks on every device signed in to the same App Store or Google Play account.

No. Undertone works fully offline, with no account. Every analysis runs on your device, so you can analyze, study, and export with no connection at all.

On a new device or after reinstalling, open Settings, tap Get Premium, and then Restore Purchases, signed in to the App Store or Google Play account that bought Premium. Premium is yours for life on every device tied to that account.

Open an analysis and tap Share, or use Export from a card's menu in your history. Undertone saves a PNG of the current mode with the palette or value bar along the bottom, so you can keep it or send it anywhere.

Open the analysis and tap Delete, or use Delete from its card's menu in your history. We ask you to confirm first, because a deleted analysis cannot be undone.

On your device only. There's no account, and your photos and your analyses stay with you: they are never uploaded and never sent to a server. The only thing that ever leaves your device is a small, anonymous diagnostic report, the kind that flags a crash or notes which features get used, so we can fix what breaks. It carries no photos and nothing that identifies you. Because everything lives on your device, uninstalling Undertone removes your analyses, so export anything you want to keep.