Since a while, I have been actively developing Android apps. Two of those, Buienalarm and ReTweet, can be found at the Android Market, and have been installed about 100,000 and 50,000 times respectively and received user ratings of 4.5/5 stars.
- Buienalarm - gives a notification on your Android device, when precipitation is expected for your exact location (determined using wireless networks). Since the data is provided by Buienradar.nl, this app is quite useful in the area that is covered by their data which is the whole of the Netherlands, and large parts of Belgium, Germany and the North Sea.
- Fijnstofalarm - is my winning entry for the Apps voor Eindhoven Challenge. It monitors several stations that can measure particulate matter levels in and around the city of Eindhoven. Whenever levels (that are determined in a Euro-political way) are exceeded, it gives a notification. It also depicts the included stations on a map view and in an augmented reality view.
- Image Loader - integrates into Android to respond to clicks on image URLs, e.g. in your favorite Twitter client. If it’s an image hosted by a site that doesn’t have a mobile version of their site, you can simply view just the image in Image Loader so you don’t have to wait for a desktop site to load on your mobile device.
- ReTweet - works as an add-on for the official Twitter for Android which was released on April 30, 2010. After trying this application, I was immediately annoyed by the fact that the official app only supported so-called ‘native retweets’. 30 minutes after trying this application, I already uploaded ReTweet to the Android Market which enabled people to use old-style retweets, so they can add their own comments to their retweets.