Arrow Down


AppTrails: FAQ

What is an AppTrail?

An AppTrail is a mobile application that uses GPS, QR Codes or iBeacons to recognise a user’s location and trigger audio content about the sights you see. Watch our short explainer animation that helps explain what an AppTrail is…


What does it look like?

The finished mobile app is branded and designed according to you and your needs. We do however have a starter framework that will include; a homepage, a map page, an about page and a help page. The map page will be a map of your chosen area. Have a look at some of the previous apps we have built.

Can I provide my own graphics?

Our design team is very experienced in mobile app design that is optimised for usability and functionality. We will work closely with you to design something that will work well within the app, and that looks beautiful. However, if you do want to create your own graphics, that’s fine too.

Why should I make an AppTrail?

Many people make an AppTrail because they want to improve, highlight or celebrate something in their geographic area. Some people make an AppTrail for tourism purposes, so people visiting an area can get a personal tour/guide of a place; for example The City of London created their AppTrail to showcase some of the incredible architecture that can be found there. Others make AppTrails to give unheard people of a community a voice; using it as a storytelling platform that breaks down the barriers of age, race and gender like the Jeg Er Norrebro app, for example.

Who will I be working with?

Calvium are a small, friendly team based in Mariner House in the centre of Bristol, just on the wonderful Harbourside. Give us a call and you’ll probably talk to Charlie, our Marketing & Operations Manager or Jo, our Creative Director. Jo offers expertise in mobile experience design, in particular location and context aware applications. Formerly a senior researcher at Hewlett-Packard Laboratories, Jo specialises in mobile location aware experiences or mediascapes. You can find out more about the rest of the team here.

How long does it take to make an AppTrail?

We have a track record of sticking to our timescales and we always work hard to ensure your timescale needs are met. In our experience, around three months is a reasonable time for us to meet regularly and establish your content deadlines. But we have been known to put together last minute AppTrails too! If you have all your content ready and waiting to go, we can complete an AppTrail in a few weeks.

Where can I make an AppTrail?

Within reason, anywhere! In theory if you’re making an outside AppTrail, it can stretch over any length of ground or water providing there is a GPS signal. Using QR Code or iBeacon technology we can create indoor AppTrails. Where you have an AppTrail also depends on what experience you want your audience to have. The points of interest on your map can lead directly from one story to the next; creating a completely immersive atmosphere where you leave the app running; such as a tour of a medieval castle for example. For this to be effective your individual points should not be more than 20 meters apart. Alternatively, you can create a more punctuated AppTrail where you open the app when you arrive at your destination. Like a city wide art trail for example. If you like, you can even create AppTrails for different modes of transportation; like a driving or cycling tour.

I don’t live in the UK, am I still able to make an AppTrail with you?

Of course! We have completed many great AppTrails in Europe and most recently, the USA. Our client communication is one of our most valued skills and we will work hard to ensure any issues due to distance barriers are overcome.

How does it work?

AppTrails uses GPS technology, QR Codes or iBeacons to pinpoint areas of interest on a map or inside a building, which then triggers audio content on your smartphone. Our team of talented developers build the app while you then use our soundwalk designer tool to choose your geolocated areas and upload media content. We then work together during the testing stages to identify and fix any bugs. Once the app is ready we can publish it via our account on the app store or your own account if you wish.

If you’re looking for someone to develop the app, as well as record and mix all the sound content then we can help with that too. We have a fantastic repertoire of sound designers and content developers that we have worked with in the past. If you’re short on time and looking for a complete solution from start to finish, we can  provide you with that.

How much does it cost?

The cost of the app will vary greatly depending on your specifications. Our AppTrail service starts from around £6000 but each app is different and our quoted price will reflect what you want the app to be capable of. You can download our AppTrails Pricing Structure to give you a rough idea of different costs and features. However, the best way to find out how much your AppTrail will cost is to get in touch with us so we can discuss your specific project.

How can I fund an AppTrail? 

Many of our AppTrails clients have received third party funding to be able to pay for their app. Because of this, we are very familiar with funding bodies, the type of work they fund and their expectations following funding. If you are applying for a funding grant to fund an AppTrail, do contact us and let us know about your project. We can sometimes provide a supporting statement that may help your application. Please see below for a selection of links to potential funders…

NESTA – Fund scaleable social ventures and ideas through challenge prizes
Arts Council England/Wales – Have a variety of different funding programmes that change throughout the year
National Lottery – Has a variety of awards including the Heritage Lottery Fund which may be useful when trying to fund AppTrails.

I’m not very techie, can I still make an AppTrail and upload my own content?

Certainly! We’re not here to baffle you with techie jargon or confuse you with developing lingo. What we want to do is to help you tell your story. This is why we work together throughout the whole process, working systematically through each stage so we both have a great understanding of what’s going on; we call this process co-creation. This method has allowed us to work with some extremely creative individuals; from poets, to producers, filmmakers and theatre goers. We like coming together with people who have good ideas and making them happen; whether you are familiar with the technology or not.

I’m presenting AppTrails as an idea to my colleagues. Can you help?  

We understand that although you may want to make an AppTrail for your place of interest, you may have the job of convincing others the same! We’re always on hand to provide you with any materials you may need for a presentation or proposal. We have written a number of blogs and whitepapers about how site-specific apps have revolutionised peoples experiences of place which you can use sections from. We have also made our AppTrails Brochure into a slideshare  to aid you with any presentations you may have to make. If you’re looking for something specific, just contact us and we would be happy to help.

How can I find out more?

If you’re interested in our AppTrails service and want to find out more, we have a number of online resources to help you do so. Read our AppTrails Brochure to get a brief explanation of what AppTrails is all about.  You can also download this Client Testimonials document to read about some of our previous clients and their experience of working with us.

How do I get started?

Just give us a call! We’re always happy to talk to you about your ideas so feel free to call us on 0117 226 2000 or email us at