XE.com - XE.com Inc. (XE) is a Canadian online foreign exchange services company.
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
Valuta+ - Valuta+ is a super simple & free currency converter. The interface is fast and makes you convert exchange rates very easily. This app have more than 160+ currencies for you and is always updated.
StatusCake - Website Uptime Monitoring & Alerts – Free Unlimited Downtime Monitoring
Tweetbot - Sync your timeline across your iPhone, iPad, and Mac. Mute tweets by user, hashtag, tweet source, or keywords (including regex). 3rd Party support for image, video, read later, and timeline sync services.
Better Uptime - We call you when your website goes down