Apps rush: InstaPhoto, Royal Ascot, ZooKeeper DX and more

A burst of seven apps for your consideration today. Apps Rush is a daily news post covering brand new apps for the various smartphones and tablets. Note: our weekly app reviews post is published separately on Fridays. InstaPhoto The flow of new apps for RIM's BlackBerry PlayBook is speeding up, even if some are influenced strongly by what's available on other platforms. InstaPhoto, for example, is a PlayBook take on popular iPhone app Instagram, with a mixture of visual effects to apply to a user's photos. Talking Horse at Royal Ascot Heading to Royal Ascot this week? You'll be wanting tips from a talking animated horse, right? Oh. Well, that's the aim of the Talking Horse at Royal Ascot app, developed by Spriing for horse racing administration firm Weatherbys. ZooKeeper DX Touch Edition More than 5 million people are apparently playing Flash game ZooKeeper. Now it's made the jump to iPhone and iPad with its animal-swapping action. Beats Brainwave Entertainment Brainwave entertainment? That's the focus of this BlackBerry PlayBook tablet app, but what is it? Developer Jamie Beach says the app's combination of binaural beats and background noises can "bring one's mind into a preferred state", whether the aim is meditation or studying. Lyric Legend Beta TuneWiki's Lyric Legend has been out on iPhone for a while, but has just made the leap to Android in beta form. It's a music rhythm game, but with lyrics the focus, as players tap on word bubbles in time to a song. Twichelin A social location app for foodies? Twichelin wants people to "co-create restaurant guide with friends", rating restaurants out of five stars, and sharing them on Twitter and Facebook. There's also an equivalent of Foursquare's mayorships, as users can become Goer members of specific restaurants. David Haye's Knockout British boxer David Kaye is preparing for his fight against Wladimir Klitschko in early July, and yes, there's an app for that. An iPhone game to be specific, which "matches a pixelated Haye with an anonymous Russian heavyweight". You can follow Guardian Apps Blog's Apps rush on delicious To suggest links, tag articles on delicious.com with "guardianappsblog"