diff --git a/android-app/plan.txt b/android-app/plan.txt
new file mode 100644
index 0000000..7878ddc
--- /dev/null
+++ b/android-app/plan.txt
@@ -0,0 +1,10 @@
+# recorder
+  - record
+  - save to filesystem
+
+# playback
+  - exoplayer
+
+# viewer
+  - view audiofiles/transcripts
+  - editor (?)