diff --git a/CMakeLists.txt b/CMakeLists.txt
index bdffd0707..0a4d5fa09 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -9,7 +9,10 @@
 #
 
 cmake_minimum_required(VERSION 3.13)
-if(APPLE)
+
+if(CMAKE_SYSTEM_NAME MATCHES iOS)
+    set(CMAKE_OSX_DEPLOYMENT_TARGET 14.0 CACHE STRING "iOS deployment target")
+elseif(APPLE)
     # Set this to the minimum supported macOS version, and also update
     # es-app/assets/ES-DE_Info.plist accordingly.
     set(CMAKE_OSX_DEPLOYMENT_TARGET 11.0 CACHE STRING "macOS deployment target")
@@ -91,6 +94,15 @@ if(EXISTS /usr/include/bcm_host.h)
     message("-- Building on a Raspberry Pi (64-bit OS)")
 endif()
 
+# iOS.
+if(IOS)
+    message("-- Building for iOS (arm64)")
+    set(GLES ON)
+    set(BUNDLED_CERTS ON)
+    add_compile_definitions(__IOS__)
+    include(${CMAKE_SOURCE_DIR}/ios/cmake/variables.cmake)
+endif()
+
 #---------------------------------------------------------------------------------------------------
 # Emscripten WebAssembly build.
 
@@ -118,12 +130,12 @@ if(GLSYSTEM MATCHES "Desktop OpenGL")
     find_package(OpenGL REQUIRED)
 elseif(ANDROID)
     find_package(OpenGLES3 REQUIRED)
-elseif(GLES AND NOT EMSCRIPTEN)
+elseif(GLES AND NOT IOS AND NOT EMSCRIPTEN)
     find_package(OpenGLES2 REQUIRED)
 endif()
 
-# On macOS and Windows all dependencies are kept in-tree in the "external" directory.
-if(APPLE)
+# On macOS, iOS and Windows all dependencies are kept in-tree in the "external" directory.
+if(APPLE AND NOT IOS)
     if(NOT EXISTS ${PROJECT_SOURCE_DIR}/external/FFmpeg)
         message(FATAL_ERROR "-- You need to build the dependencies in ./external first")
     endif()
@@ -132,7 +144,7 @@ elseif(WIN32)
     if(NOT EXISTS ${PROJECT_SOURCE_DIR}/external/pugixml/pugixml.dll)
         message(FATAL_ERROR "-- You need to build the dependencies in ./external first")
     endif()
-elseif(NOT EMSCRIPTEN AND NOT ANDROID)
+elseif(NOT EMSCRIPTEN AND NOT ANDROID AND NOT IOS)
     find_package(CURL REQUIRED)
     find_package(FFmpeg REQUIRED)
     find_package(FreeImage REQUIRED)
@@ -279,8 +291,8 @@ if(ASAN OR UBSAN)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_GLIBCXX_ASSERTIONS -D_FORTIFY_SOURCE=3")
 endif()
 
-# The following removes half of the ranlib warnings on macOS regarding no symbols for files
-# that are #ifdef'ed away. There must be a way to remove the other half as well?
+# The following removes the ranlib warnings on macOS regarding missing symbols for files that have
+# been #ifdef'ed away.
 if(APPLE)
     SET(CMAKE_C_ARCHIVE_FINISH "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
     SET(CMAKE_CXX_ARCHIVE_FINISH "<CMAKE_RANLIB> -no_warning_for_no_symbols -c <TARGET>")
@@ -378,7 +390,7 @@ if(DEINIT_ON_LAUNCH)
     endif()
 endif()
 
-if(AUR_BUILD OR FLATPAK_BUILD OR RETRODECK OR RPI OR HAIKU OR CMAKE_SYSTEM_NAME MATCHES FreeBSD)
+if(AUR_BUILD OR FLATPAK_BUILD OR RETRODECK OR RPI OR HAIKU OR IOS OR CMAKE_SYSTEM_NAME MATCHES FreeBSD)
     set(APPLICATION_UPDATER OFF)
 endif()
 
@@ -462,8 +474,19 @@ set(COMMON_INCLUDE_DIRS ${CURL_INCLUDE_DIR}
                         ${CMAKE_CURRENT_SOURCE_DIR}/external/utfcpp/source
                         ${CMAKE_CURRENT_SOURCE_DIR}/es-core/src
                         ${CMAKE_CURRENT_SOURCE_DIR}/es-pdf-converter/src)
-
-if(APPLE)
+if(IOS)
+    set(COMMON_INCLUDE_DIRS ${COMMON_INCLUDE_DIRS}
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/curl/include
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/ffmpeg-kit/src/ffmpeg
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/FreeImage/Source
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/freetype/include
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/gettext/gettext-runtime/intl
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/libgit2/include
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/harfbuzz/src
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/icu/icu4c/source/common
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/pugixml/src
+                            ${CMAKE_CURRENT_SOURCE_DIR}/external/SDL)
+elseif(APPLE)
     set(COMMON_INCLUDE_DIRS ${COMMON_INCLUDE_DIRS}
                             ${CMAKE_CURRENT_SOURCE_DIR}/external/FFmpeg
                             ${CMAKE_CURRENT_SOURCE_DIR}/external/freeimage/FreeImage/Source
@@ -538,7 +561,30 @@ endif()
 #---------------------------------------------------------------------------------------------------
 # Dependency libraries.
 
-if(APPLE)
+if(IOS)
+    set(COMMON_LIBRARIES ${COMMON_LIBRARIES}
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libavcodec.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libavfilter.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libavformat.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libavutil.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libswresample.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libswscale.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libcurl.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libfontconfig.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libfreeimage.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libfreetype.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libgit.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libharfbuzz.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libicudata.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libicui18n.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libicuuc.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libintl.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libopenjpeg.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libpoppler.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libpoppler-cpp.xcframework
+                         ${PROJECT_SOURCE_DIR}/Frameworks/libSDL.xcframework
+                         ${PROJECT_SOURCE_DIR}/libpugixml.a)
+elseif(APPLE)
     set(COMMON_LIBRARIES ${COMMON_LIBRARIES}
                          ${CURL_LIBRARIES}
                          ${PROJECT_SOURCE_DIR}/libavcodec.60.dylib
@@ -660,13 +706,16 @@ if(NOT WIN32)
     if(ANDROID)
         set(COMMON_LIBRARIES ${COMMON_LIBRARIES} ${PROJECT_SOURCE_DIR}/android_${ANDROID_ABI}/liblunasvg.a)
         set(COMMON_LIBRARIES ${COMMON_LIBRARIES} ${PROJECT_SOURCE_DIR}/android_${ANDROID_ABI}/librlottie.a)
+    elseif(IOS)
+        set(COMMON_LIBRARIES ${COMMON_LIBRARIES} ${PROJECT_SOURCE_DIR}/${CMAKE_BUILD_TYPE}/liblunasvg.a)
+        set(COMMON_LIBRARIES ${COMMON_LIBRARIES} ${PROJECT_SOURCE_DIR}/${CMAKE_BUILD_TYPE}/librlottie.a)
     else()
         set(COMMON_LIBRARIES ${COMMON_LIBRARIES} ${PROJECT_SOURCE_DIR}/liblunasvg.a)
         set(COMMON_LIBRARIES ${COMMON_LIBRARIES} ${PROJECT_SOURCE_DIR}/librlottie.a)
     endif()
 endif()
 
-if(APPLE)
+if(APPLE AND NOT IOS)
     # See es-app/CMakeLists.txt for an explation for why an extra "Resources" directory
     # has been added to the install prefix.
     set(CMAKE_INSTALL_PREFIX "/Applications/ES-DE.app/Contents/Resources")
diff --git a/es-app/CMakeLists.txt b/es-app/CMakeLists.txt
index 0f7d10c99..159e3ff10 100644
--- a/es-app/CMakeLists.txt
+++ b/es-app/CMakeLists.txt
@@ -111,14 +111,16 @@ set(ES_SOURCES
 )
 
 if(WIN32)
-    LIST(APPEND ES_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/assets/ES-DE.rc)
+    list(APPEND ES_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/assets/ES-DE.rc)
 endif()
 
 #---------------------------------------------------------------------------------------------------
 # OS-specific installation and package generation setup.
 
 # Define target.
-if(APPLE)
+if(IOS)
+    include(${CMAKE_SOURCE_DIR}/ios/cmake/ios.cmake)
+elseif(APPLE)
     include_directories(${COMMON_INCLUDE_DIRS} ${CMAKE_CURRENT_SOURCE_DIR}/src)
     add_executable(ES-DE ${ES_SOURCES} ${ES_HEADERS})
     target_link_libraries(ES-DE ${COMMON_LIBRARIES} es-core)
@@ -202,7 +204,7 @@ if(WIN32)
     install(DIRECTORY ${CMAKE_SOURCE_DIR}/themes/modern-es-de DESTINATION themes)
     install(DIRECTORY ${CMAKE_SOURCE_DIR}/themes/slate-es-de DESTINATION themes)
     install(DIRECTORY ${CMAKE_SOURCE_DIR}/resources DESTINATION .)
-elseif(APPLE)
+elseif(APPLE AND NOT IOS)
     # For completely unknown reasons, when generating a Bundle using cpack, an extra 'Resources'
     # directory is added to the target path. Simply adding the two dots as a prefix fixes the
     # problem, but doing so would break 'make install' which was actually behaving correctly.
@@ -288,7 +290,7 @@ elseif(HAIKU)
         DESTINATION data/es-de/themes)
     install(DIRECTORY ${CMAKE_SOURCE_DIR}/resources
         DESTINATION data/es-de)
-elseif(NOT ANDROID)
+elseif(NOT ANDROID AND NOT IOS)
     install(TARGETS es-de RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
     install(TARGETS es-pdf-convert RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)
     if(CMAKE_SYSTEM_NAME MATCHES Linux OR CMAKE_SYSTEM_NAME MATCHES FreeBSD)
diff --git a/es-core/CMakeLists.txt b/es-core/CMakeLists.txt
index 848c3a785..c46e98931 100644
--- a/es-core/CMakeLists.txt
+++ b/es-core/CMakeLists.txt
@@ -179,6 +179,13 @@ if(ANDROID)
     set(CORE_SOURCES ${CORE_SOURCES} ${CMAKE_CURRENT_SOURCE_DIR}/src/utils/PlatformUtilAndroid.cpp)
 endif()
 
+if(IOS)
+    set(CORE_HEADERS ${CORE_HEADERS} ${CMAKE_CURRENT_SOURCE_DIR}/src/InputOverlay.h)
+    set(CORE_HEADERS ${CORE_HEADERS} ${CMAKE_CURRENT_SOURCE_DIR}/src/utils/PlatformUtilIOS.h)
+    set(CORE_HEADERS ${CORE_HEADERS} ${CMAKE_CURRENT_SOURCE_DIR}/src/InputOverlay.cpp)
+    set(CORE_SOURCES ${CORE_SOURCES} ${CMAKE_CURRENT_SOURCE_DIR}/src/utils/PlatformUtilIOS.cpp)
+endif()
+
 #---------------------------------------------------------------------------------------------------
 # Miscellaneous configuration.
 
diff --git a/es-pdf-converter/CMakeLists.txt b/es-pdf-converter/CMakeLists.txt
index 7aaa1b49f..85d004b6a 100644
--- a/es-pdf-converter/CMakeLists.txt
+++ b/es-pdf-converter/CMakeLists.txt
@@ -13,23 +13,31 @@ if(WIN32)
     set(POPPLER_CPP_LIBRARY ${CMAKE_CURRENT_SOURCE_DIR}/poppler-cpp.lib)
     # Disable DLL interface warnings.
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /wd4251")
-elseif(APPLE)
-    set(POPPLER_CPP_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../external/poppler/cpp ${CMAKE_CURRENT_SOURCE_DIR}/../external/poppler/build/cpp)
-    set(POPPLER_CPP_LIBRARY ${CMAKE_CURRENT_SOURCE_DIR}/../libpoppler-cpp.0.dylib)
 elseif(ANDROID)
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -llog")
     set(POPPLER_CPP_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../external/poppler/cpp ${CMAKE_CURRENT_SOURCE_DIR}/../external/poppler/build/cpp)
     set(POPPLER_CPP_LIBRARY ${CMAKE_CURRENT_SOURCE_DIR}/../android/libs/${ANDROID_CPU_ARCH}/libpoppler-cpp.so)
+elseif(IOS)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -llog")
+    set(POPPLER_CPP_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../external/poppler/cpp ${CMAKE_CURRENT_SOURCE_DIR}/../external/poppler/build/cpp)
+elseif(APPLE)
+    set(POPPLER_CPP_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../external/poppler/cpp ${CMAKE_CURRENT_SOURCE_DIR}/../external/poppler/build/cpp)
+    set(POPPLER_CPP_LIBRARY ${CMAKE_CURRENT_SOURCE_DIR}/../libpoppler-cpp.0.dylib)
 else()
     find_package(Poppler REQUIRED COMPONENTS cpp)
 endif()
 
 include_directories(${POPPLER_CPP_INCLUDE_DIR})
-if (ANDROID)
+if(ANDROID)
     set(CONVERTER_SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/src/ConvertPDF.cpp
                                ${CMAKE_CURRENT_SOURCE_DIR}/src/ConvertPDF.h)
     add_library(es-pdf-convert SHARED ${CONVERTER_SOURCE_FILES})
+elseif(IOS)
+    set(CONVERTER_SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/src/ConvertPDF.cpp
+                               ${CMAKE_CURRENT_SOURCE_DIR}/src/ConvertPDF.h)
+    add_library(es-pdf-convert STATIC ${CONVERTER_SOURCE_FILES})
 else()
     set(CONVERTER_SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/src/main.cpp
                                ${CMAKE_CURRENT_SOURCE_DIR}/src/ConvertPDF.cpp
@@ -40,6 +48,9 @@ target_link_libraries(es-pdf-convert PRIVATE ${POPPLER_CPP_LIBRARY})
 
 if(WIN32)
     set_target_properties(es-pdf-convert PROPERTIES RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/es-pdf-converter" INSTALL_RPATH_USE_LINK_PATH TRUE)
+elseif(IOS)
+    set_target_properties(es-pdf-convert PROPERTIES INSTALL_RPATH_USE_LINK_PATH TRUE
+                          XCODE_ATTRIBUTE_DEVELOPMENT_TEAM ${IOS_DEVELOPMENT_TEAM})
 else()
     set_target_properties(es-pdf-convert PROPERTIES INSTALL_RPATH_USE_LINK_PATH TRUE)
 endif()
diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index be7268087..f1ab02541 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -7,27 +7,27 @@
 #
 
 # This makes it possible to set options in subprojects.
-set (CMAKE_POLICY_DEFAULT_CMP0077 NEW)
+set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
 
 # Suppress warnings about cmake_minimum_required() defining deprecated versions.
 set(CMAKE_WARN_DEPRECATED OFF CACHE BOOL "" FORCE)
 
-if (WIN32)
+if(WIN32)
     # On Windows the build type needs to match the main binary.
-    if (CMAKE_BUILD_TYPE MATCHES Profiling)
-        set (CMAKE_BUILD_TYPE Release)
+    if(CMAKE_BUILD_TYPE MATCHES Profiling)
+        set(CMAKE_BUILD_TYPE Release)
     elseif(NOT CMAKE_BUILD_TYPE MATCHES Debug)
-        set (CMAKE_BUILD_TYPE Release)
+        set(CMAKE_BUILD_TYPE Release)
     endif()
 else()
     # Always build with optimizations enabled and without debug info.
-    set (CMAKE_BUILD_TYPE Release)
+    set(CMAKE_BUILD_TYPE Release)
 endif()
 
 unset(CMAKE_CXX_FLAGS)
 unset(CMAKE_EXE_LINKER_FLAGS)
 
-if (WIN32)
+if(WIN32)
     set(BUILD_SHARED_LIBS ON)
 else()
     set(BUILD_SHARED_LIBS OFF)
@@ -41,15 +41,11 @@ if(CMAKE_CXX_COMPILER_ID MATCHES MSVC)
 endif()
 
 if(ANDROID)
-    if(ANDROID_LITE_RELEASE)
-        set_target_properties(lunasvg PROPERTIES ARCHIVE_OUTPUT_DIRECTORY
-                              ${PROJECT_SOURCE_DIR}/android_lite_${ANDROID_ABI})
-    else()
-        set_target_properties(lunasvg PROPERTIES ARCHIVE_OUTPUT_DIRECTORY
-                              ${PROJECT_SOURCE_DIR}/android_${ANDROID_ABI})
-    endif()
+    set_target_properties(lunasvg PROPERTIES ARCHIVE_OUTPUT_DIRECTORY
+                          ${PROJECT_SOURCE_DIR}/android_${ANDROID_ABI})
 endif()
 
+
 # Disable threading support for rlottie as this functionality actually leads to far worse
 # performance. As well there is a bug on Windows that makes rlottie hang forever on application
 # shutdown if compiled using MinGW with threading support enabled.
@@ -71,13 +67,8 @@ else()
 endif()
 
 if(ANDROID)
-    if(ANDROID_LITE_RELEASE)
-        set_target_properties(rlottie PROPERTIES ARCHIVE_OUTPUT_DIRECTORY
-                              ${PROJECT_SOURCE_DIR}/android_lite_${ANDROID_ABI})
-    else()
-        set_target_properties(rlottie PROPERTIES ARCHIVE_OUTPUT_DIRECTORY
-                              ${PROJECT_SOURCE_DIR}/android_${ANDROID_ABI})
-    endif()
+    set_target_properties(rlottie PROPERTIES ARCHIVE_OUTPUT_DIRECTORY
+                          ${PROJECT_SOURCE_DIR}/android_${ANDROID_ABI})
 endif()
 
 # Build LunaSVG before rlottie.
diff --git a/locale/CMakeLists.txt b/locale/CMakeLists.txt
index bec3e01d5..0116bab07 100644
--- a/locale/CMakeLists.txt
+++ b/locale/CMakeLists.txt
@@ -8,7 +8,9 @@
 
 add_custom_target(localization ALL COMMENT Compiling localization message catalogs)
 
-if(APPLE)
+if(IOS)
+    set(MSGFMT_BINARY ${PROJECT_SOURCE_DIR}/external/macos/local_install/bin/msgfmt)
+elseif(APPLE)
     set(MSGFMT_BINARY ${PROJECT_SOURCE_DIR}/external/local_install/bin/msgfmt)
 elseif(WIN32)
     set(MSGFMT_BINARY ${PROJECT_SOURCE_DIR}/external/gettext/bin/msgfmt.exe)