The best alternatives to Nearest Wiki are Viro Media, FlippAR, and Virtlo. If these 3 options don't work for you, we've listed a few more alternatives below.
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AssemblyAI— Speech-to-Text API with superhuman accuracy
Viro Media is a platform for developers to rapidly build AR or VR apps using React Native or Java. Start developing apps for Cardboard, iOS, Android, and more.
FlippAR Go is the new-age travel app for the tech-savvy, modern traveller. Go uses Augmented Reality to unveil interactive travel experiences. You can access stories and facts about heritage sites, and explore things to do around you, all on a single app.
Virtlo is Augmented Reality Travel online/offline app to find nearest places around you! Virtlo will transform your iPhone’s screen into a virtual world full of new discoveries. - more than 100 million points of interest around the world - more than 200 categories - works even offline - free, cool and fun
Yandex Maps integrated ARkit and we can try that on iPhone. Interesting what will Apple show us later http://appleinsider.com/articles/16/11/08/apple-patents-augmented-reality-mapping-system-for-iphone
The perfect way to learn more about the landmarks near you and explore cities differently. Scanmarks works without a data connection in many cities around the world.