Siddham Keyboard

Siddham (Siddhaṃ) is a Sanskrit writing system that took shape in ancient India around the sixth century CE. An important branch of the Brahmic family, it is known for its rich body of conjunct forms and combining marks. It is a significant subject for the study of ancient Indic languages and South Asian writing traditions, and a witness to the evolution of writing and cultural exchange. Unicode has assigned it a dedicated block (U+11580–U+115FF).
Because mobile devices rarely ship with Siddham fonts, ordinary users have had no practical way to type or share this script on a phone. Siddham Keyboard was built to solve exactly that problem: a system keyboard for iOS.
[Two input modes]
· Direct mode: tap a Siddham letter on the keyboard and the corresponding character is inserted as-is.
· Transliteration mode: type romanised text following the International Alphabet of Sanskrit Transliteration (IAST); the built-in engine composes the Siddham form in real time and the space bar commits it.
[Letters page and combining marks]
Consonants and vowels are laid out in rows, with three combining marks — virāma, anusvāra and visarga — for syllable composition. Tap a consonant, then a mark, then another consonant to build a consonant cluster.
[Symbols page]
Punctuation, variant letters and common character combinations of the script. The vowels u / ū are available in two glyph variants, selectable from a long-press panel.
[Phrase templates]
A template bar sits above the keyboard with 10 presets, expandable to 30. Tap to insert, and add, edit or delete entries inside the app.
[Image export]
Renders the Siddham text you have typed into an image and copies it to the clipboard. Paste it into any chat app and the recipient will see the characters correctly even without a Siddham font installed.
[Fully offline]
The app does not connect to the network and collects no user data. Only image export requires "Allow Full Access" (to write to the clipboard); no other feature needs any permission.