Useful and informative app This is an excellent app which works well. The directions for the tour are clear and easy to follow at the site with the help of the map included. The content is informative, well thought-out and well presented. It did stop working when I used it, but it was quick and easy to resume at the point in the tour where the app closed. Navigation within the app is straightforward – using a familiar tab interface. The text of the audio narration is helpfully provided via a button, enabling the app to be used with or without sound. The developers of the app are to be congratulated for providing such a comprehensive and functional historical guide to the fort. If you have an interest in Nineteenth century history or historic buildings – or you just want an enjoyable outing to the seaside with a purpose – there’s an app for that!