Thermal camera app for iPhone: heat-map style photos

You want the thermal look on an iPhone — without carrying a second camera or editing every shot afterwards in a filter app.

Short answer: Selfie shoots the thermal look live: pick the preset, frame, shoot. Filters render in the viewfinder before you capture — on photos and videos, and even with the front and back cameras at the same time.

What makes the thermal look

The thermal look maps brightness to a heat palette — deep blues through orange to white-hot — imitating infrared cameras. It is a visual effect (your iPhone camera cannot measure temperature), and a striking one.

How to get it in Selfie

Selfie’s Thermal preset applies the heat-map palette live in the viewfinder to photos and videos.

The dual-camera twist

Thermal selfie plus thermal scene, captured at once — a two-panel heat-map shot no real thermal camera app does.

Frequently asked questions

Do I apply the filter before or after shooting? Before — the preset renders live in the viewfinder, and the saved photo or video matches the preview. There is no separate editing step.

Does it work for video? Yes. Presets apply to video recording as well, including dual front-and-back video with sound.

Can I use it with both cameras at once? Yes — that’s Selfie’s core feature. The thermal preset applies to the front and back camera simultaneously in picture-in-picture layout.

What does it cost? Selfie is free to download and try. The Pro subscription (weekly or annual) unlocks unlimited dual-camera shots and all premium presets.