Reviews as open data.

Read and write them in the app you already use, or build them into yours.

Find an app Build with open reviews

Apps

Mangrove is the open dataset of reviews that these apps read and write, so a review written in one appears in all of them. The most active apps come first.

  • MapComplete

    Leave reviews of points of interest on OpenStreetMap.

    1930 recent reviews

  • Mangrove reference app

    Read and write reviews with every feature of the standard, such as images, flags and identity claims.

    1076 recent reviews

  • Mangrove Reviews Browser Extension

    Review the website, place or book in the current tab from a popup.

    23 recent reviews

  • CultureTogether

    Find cultural venues in Germany and their accessibility, and review them.

    6 recent reviews

  • CoMaps

    Read reviews in the place details of an offline OpenStreetMap app for Android and iOS.

    Shows reviews

  • MangroveViewer

    Browse place reviews on top of an OpenStreetMap base layer.

    Shows reviews

  • Open Camping Map

    Read campsite reviews on a map of campsites.

    Shows reviews

Regional tourist boards with Mangrove reviews: Haslital Tourismus, Heidiland Tourism, House of Winterthur, Ostschweiz Tourismus, Thurgau Tourismus, Toggenburg Tourismus.

For developers

Integrate reviews at the level that fits your product. Every path reads and writes the same open dataset.

  • Widget

    Embed reviews of any subject in a web page with three lines of HTML.

    Widget guide

  • Libraries

    Read, sign and submit reviews from JavaScript, or validate them in Rust.

    JS library, Rust crate

  • REST API

    Read and write reviews over HTTP from any language.

    API reference

Join the association: members steer the standard and the dataset.

Become a member