Android 5.0 (API 21) and above.
Unlike my past applications, Graphie came out as a paid application, but for $1.49 and, as always, completely without ads.
When you purchase Graphie, in Google Play, it will be assigned to your Google account. If you use the same Google account on a new or factory reset device, you will have access to all previous purchases.
At the moment, Graphie can read tags from images with the following formats: JPG, PNG, WEBP, HEIC, HEIF and all RAW formats.
At the moment, Graphie can write tags to images with the following formats: JPG, PNG, WEBP, HEIC, and HEIF.
This was done intentionally to fully support Android 10 (and in the future Android 11). I am working on finding a solution to enable this feature.