Spark for Android supports HTML signatures. The one tricky part is getting the HTML code onto your phone — the cleanest way is via a note or cloud app.
1Get the code onto your phone
- On your desktop, in Mirosign click Copy HTML.
- Paste it into a synced note app such as Google Keep or a blank Google Doc.
- On your Android phone, open the same note, select the entire block of code and tap Copy.
2Add the signature in Spark
- Open Spark, tap the menu (top left) → Settings → Signatures, and turn on Use Email Signatures.
- Tap + Add Signature, then tap the HTML button (top right) — this is important, or the code won’t render.
- Paste your Mirosign HTML into the box. Tap HTML again to preview.
- Tap Save, then set it as Default for your email account.
Compose a new email to confirm the signature appears correctly.