How many photos will the world take this year?

That’s hard to say. But it could be as high as 14 trillion. And here’s that number with all the zeros: 14,000,000,000,000.

The figure is based on the calculation that four billion people will have a phone with a camera in 2017. On average they will take 10 pics a day. That’s 3,650 photos per year, per person.

3,650 x 4 million = 14 trillion.

How far we’ve come since the first photo ever taken – a grainy landscape by Joseph Nicéphore Niépce in 1826.

For around a century after Niépce’s breakthrough, photography was something professionals did. And they did it very rarely. Then along came cheap cameras and ‘civilians’ began taking pics. But they only did so to mark special occasions like holidays and weddings.

Finally came camera phones and the third age of photography. Today, taking pics is something we do all the time. In a sense, if something is not captured in a photo, it’s like it didn’t happen.

But the camera phone does more than give people the ability to take photos all the time. It also lets them crop, correct, enhance and manipulate them.

A decade ago only pros knew the secrets of Photoshop. Today, anyone with a smartphone can create stunning images with a free photo editing app.

Yes, we’ve caught up with the professionals again.

Photo editing tools like Snapseed, Pixlr, PicsArt and Photo Editor Pro are among the most popular products in the app stores. They let users do basic things like adjusting contrast, saturation, and so on. They can also do cosmetic fixing such as blemish remover, teeth whitener etc.

But this is just the start. Many offer hundreds of filters, some of which will make your pic look like a work of art by Van Gogh. Others let you make memes or gifs.

However, as with most app categories, there’s an arms race going on. The default photo editors offered by Apple and Google get better and better, so the ‘indies’ have to add new features to stay ahead.

The challenge is to alert users about these improvements – and drive them back to their apps.

This is where Calldorado can help. Calldorado is a caller ID platform that displays helpful information about a person or business whenever a call is made or received. It also displays a link back to an app when the call is ended.

So, your users could see a visual reminder about a photo editing app several times a day. And the app doesn’t even have to be open for this to work. Calldorado also serves relevant advertising, so app makers can monetize it too. In fact, Calldorado serves on average 150 impressions per user per month. And it serves these ads whether the host app is open or closed. This way, a developer can even make money from inactive or infrequent app users.

It’s simple to add the Calldorado SDK into a photo editing app. And it’s just as easy to configure it for the best results. App makers can include images of new effects or tools, which they can automate and shuffle for maximum impact.

Our studies show it works. Up to 10 per cent of users re-engage with an app when Calldorado is installed. And they appear to be relaxed about this advertising medium: 70 per cent of them choose to keep the Caller ID feature active. They like it.

Best of all, the Calldorado platform is free to developers. So, for a negligible investment, you can be engaging and monetizing your users in minutes.