Instructions:
After installation, enable Navlipi Soft Keyboard in Settings->System->Languages & input->Virtual keyboard->Manage keyboards OR in Settings->Languages & input->Current Keyboard->Choose keyboards

User Guide:
https://navlipi.org/downloads/NAVLIPI-Full-Alphabet-with-Word-Examples.pdf

Description:

NAVLIPI
World’s first practical phonemic (also phonetic) alphabet.

See: https://navlipi.org

ALL LANGUAGES

Superscripts on some keys: E English; M Mandarin; T Tamil; A Arabic; Dewanaagari letter.

“Post-Ops”

• Aspiration (महाप्राण): Add hₒ to letter being aspirated. Thus, k, Hindi क, p, Hindi प ➪ khₒ (ख), phₒ (फ)

• Fricatization (hissing sound): Add hᵩ. Except: x for velar unvoiced fricative (also writable as khᵩ)

Common vowels

• aa English father, Hindi आ. aao Dravidian lang. short vowel.

• Long vowels by reduplication: So short i, u ➪ Long ii, uu, etc; aa an exception.

• Ω English ball, vowel in Hindi कौन

• ɔ (inverted-c) English Jack, vowel in Hindi मै

• q English about, 2nd vowel in Hindi यन्त्र

• a English but, Hindi अ

• e English bet; ee fair, vowel in Hindi है; ε English gray, Hindi ए, Spanish que

• y French tu, German ȕber; o// feuille; o/ German schön

Common non-vowels (consonants)

• j English yes, Hindi य

• ƪ (inverted-j) English Jack Hindi ज

• c Spanish chica Hindi च

• ƹ for voiced velar fricative, Hindi/Faarsi ग़म

• shᵩ English shoot Hindi श; zhᵩ English pleasure

Nasals

• As tilde symbol (~); place after syllable. Thus, Hindi हाां, French mon, Portuguese Saõ ➪ haa~, mo~, Saao~.

• Velar, nasals nₒ (Dewanaagari ङ, English king ➪ kinₒg); palatal η (Dewanaagari ञ, English inch iηc)

Upper-, lower- case letters ARE distinguished.

SPECIFIC LANGUAGES

English, West European, Russian languages

• Alveolar t- , d as ŧŧ (or just tt ), đt (or just dt)

• Unvoiced, voiced dental fricatives: English thin ➪ thᵩin, this ➪ dhᵩis

Hindi, other Indian languages

• Retroflex (मूर्धन्त्य) non-vowels (ट, ठ, ड, ढ, ण) ŧ, ŧhₒ, đ, đhₒ, ր

• Flaps add dot (.). Thus ट. ड. ण. become ŧ. đ. ր.

• Vowel r-sound (ऋ): ȓ

• Wisarga (glottal stop): as colon (:)

• Diphthongs ऐ, औ, if actual diphthongs: aaε, aau. But these frequently pronounced as vowels ( cf. मै, है, कौन )

• Retroflex Tamil l-like sound (zh in Latin transcription) as ⱡ

Arabic

• Unvoiced uvular k-sound (q in Latin transcription): k..

• Pharyngealized (faucal) dental t-, d- as t.., d..

Mandarin

• 4 standard tones: Placed after syllable having tone

• hs-sound (x in Latin transcription, Xie Xie “thank you”): ŧŧhᵩ

Select African languages

• “Velarized” bilabials kp, gb

• Initial nasals as ~ E.g. Ngoma, Mbeki as ~gomaa, ~bƐki

PHONEMIC RENDITIONS

Hindi

• vw for both v, w sounds in Hindi

• ph₈ for both f, pho (aspirated-p) sounds

English

• pₒ for both p and pho

• ttₒ for alveolar t, th-sounds

Standard French, Hochdeutsch

• xr for both “throaty-r”, “rolled-r”

Mandarin

• b∞ for both p-, b-sounds

• d∞ for both alveolar t, d-sounds

Tamil

• tₒ for both dental t, th sounds