BYgo is a free light planning tool for photographers. Enter any city and it tells you whether conditions are worth shooting, when golden hour is, what the shadows will be like, which film to load, and what camera settings to start with.

Yes. BYgo is completely free to use and requires no account or registration.

How is BYgo different from PhotoPills?

PhotoPills shows you data. BYgo makes a decision. It analyses conditions and tells you directly whether to go out and shoot, rather than leaving you to interpret numbers yourself.

Does BYgo work for analog film photography?

Yes. BYgo recommends specific film stocks matched to actual shooting conditions, with push and pull development notes where relevant.

What is After the Shot?

After the Shot reads the time and location from a photo's EXIF data and tells you exactly where the sun was, what the sky was doing, and how long that light lasted. It then calculates the next date the same light returns to the same place. It is free, needs no account, and the photo never leaves your device.

BYgo · After the Shot

Never miss that light again.

You caught it once. Let's find out exactly when it comes back.

Drop a photo here

An old favourite works best. Screenshots and Instagram downloads have had the time and place stripped out.

Nothing leaves your device except the time and the coordinates.

No location in that file. Tell us where.

City or place Taken at

What you get

Example After the Shot card, showing a Barcelona building and the date its light returns

How it works

What light was this?

We read the photo's time and place, work out exactly what the sun and sky were doing at that minute, then calculate the next date that same light happens again.

Sun
Light from
Phase
Sky

bygo.app/after-the-shot

Read another photo

Your light

Sun position is calculated. Sky conditions come from the nearest weather station's archive, so treat them as the neighbourhood's weather, not the view from your lens. Saving a card creates a free BYgo account and an alert for the return date.

After the shot

Never miss that light again.

What light was this?

Your light