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--- a/README.md
+++ b/README.md
@@ -25,6 +25,7 @@
 - [Supported compilers](#supported-compilers)
 - [License](#license)
 - [Thanks](#thanks)
+- [Projects using JSON for Modern C++](#projects-using-json-for-modern-c)
 - [Notes](#notes)
 - [Execute unit tests](#execute-unit-tests)
 
@@ -826,6 +827,11 @@ I deeply appreciate the help of the following people.
 Thanks a lot for helping out! Please [let me know](mailto:mail@nlohmann.me) if I forgot someone.
 
 
+## Projects using JSON for Modern C++
+
+The library is currently used in Apple macOS Sierra and iOS 10. I am not sure what they are using the library for, but I am happy that it runs on so many devices.
+
+
 ## Notes
 
 - The code contains numerous debug **assertions** which can be switched off by defining the preprocessor macro `NDEBUG`, see the [documentation of `assert`](http://en.cppreference.com/w/cpp/error/assert). In particular, note [`operator[]`](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a2e26bd0b0168abb61f67ad5bcd5b9fa1.html#a2e26bd0b0168abb61f67ad5bcd5b9fa1) implements **unchecked access** for const objects: If the given key is not present, the behavior is undefined (think of a dereferenced null pointer) and yields an [assertion failure](https://github.com/nlohmann/json/issues/289) if assertions are switched on. If you are not sure whether an element in an object exists, use checked access with the [`at()` function](https://nlohmann.github.io/json/classnlohmann_1_1basic__json_a674de1ee73e6bf4843fc5dc1351fb726.html#a674de1ee73e6bf4843fc5dc1351fb726).
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