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Tibetan, word by word, on iPhone and Mac.

  • Translator
  • Speech to text
  • Image to text
  • Dictionary
  • Text to speech

Kerog helps you read Tibetan. Give it a voice note, a photograph of a page, typed text or someone speaking, and it divides each sentence into its words and shows each word’s meanings from ten Tibetan dictionaries. Everything runs on the iPhone or the Mac itself, so it works without a connection, and nothing you record, photograph or type is uploaded.

Online translators handle whole sentences better, and when you have a good connection they are worth using. Kerog also offers a rough English translation, but it is meant to be read alongside the words, not on its own.

iPhoneMacOne download for both.

No account, subscription or analytics. It works in aeroplane mode.

The Kerog app icon: a Tibetan letter inside the five-coloured ring.
Kerog
Read ་ Hear ་ Gloss
Tibetan ↔ English
iPhone
iOS 17 or later
Mac
macOS 14 or later
Bundled models
About 1 GB, all on-device
Dictionary
265,000 entries, 10 sources
Network
Only if you switch it on
Price
Free
The gloss

Every word, with its meanings from each dictionary

A model small enough to run on a phone will get sentences wrong, so Kerog puts the word-by-word reading first. Each sentence is divided into its words, and each word shows its meanings from ten Tibetan dictionaries, with the dictionary named. A meaning that several dictionaries share is shown once, under the first of them, and the others say how many they repeat, so the list stays short; a tap on the count shows them. This lets you see where a translation went wrong and work out what was actually said. All of it is on the phone, so it is there without a connection.

Reading Select a word

ཁྱེད་རང་གིས་སྐད་ཆ་དེ་གོ་ཐུབ་ཀྱི་འདུག

You can understand what is said.

Eight words, from the dictionaries bundled with the app. Each meaning appears once, under the first dictionary that gives it; +N is how many more a later one repeats, and a tap shows them.

Glossaries

Decide a word’s meaning once

A tap on a meaning in the gloss chooses it for that word, in that sentence. Working through one text for weeks, you would make the same choice hundreds of times: ཆོས as Dharma in your practice texts, as phenomena in the Abhidharma course. A glossary remembers it. Choose the meaning once, and from then on the word opens on it — on the chip, on its card, and in what you copy.

The Glossaries pane on the Mac: My glossary with twelve words, a project glossary called Shamatha, and the word སྡུག་བསྔལ opened on its meanings with 'suffering' chosen.
The words you have decidedEach with the meaning chosen for it. Open one to see every dictionary’s meanings again, pick another, or write your own. A word can also be added by hand, before it turns up in a reading.
Always in use

My glossary

The meanings you want in every reading. Under a word’s meanings, Remember keeps the one shown; a tap on a meaning alone never changes a glossary.

One at a time

A glossary for each text

One for a text, a course or a teacher, as many as you like. Put one in use, and where it has a meaning for a word, that meaning wins over My glossary.

Your own wording

In your teacher’s words

A teacher’s list often says what no dictionary does — mind of enlightenment for བྱང་ཆུབ་སེམས. A glossary keeps it as written, and the word shows it first.

A spreadsheet, in iCloud Drive

Each glossary is a CSV file: the Tibetan and its meaning, one word to a row. It opens in Numbers, Excel or Google Sheets, so a list can be printed, handed to a study group, or kept with the rest of your notes. Kerog takes in any word list a spreadsheet writes, in Tibetan script or in Wylie, and shows what it found before anything changes.

With iCloud Drive on, your glossaries are the same on the iPhone and the Mac, one file each in a Kerog folder you can open in Files or the Finder. A word remembered on one is on the other a moment later, and a file edited there changes the glossary everywhere.

Only the glossaries go to iCloud Drive — each word and its meaning, never the sentence it was chosen in. To keep them on the device, switch off Sync with iCloud Drive in Settings.

How glossaries work, step by step →

Where it fits

For the times without a connection

The large models that run on servers translate better than anything that fits on a phone. Kerog is for the times they cannot be reached.

With a good connection

A translator in the cloud

Models running on servers are far larger than anything that fits on a phone, and they handle whole sentences better. When you have Wi-Fi, they are the better tool. Kerog can also send individual tasks to them, through the Cloud (Monlam AI), if you switch them on in Settings.

With little or no data

The words are already on the phone

When you are travelling, or in a conversation that cannot wait, the gloss, the dictionary and a rough translation are already on the phone. You can follow someone as they speak, look a word up by how it sounded, or type English and hear it in Tibetan.

Listening, in aeroplane mode

Nothing here depends on a server. Each sentence appears as it is spoken, with its English and its words, and keeps its own audio so you can replay that line on its own.

The name

སྐད་སྒྱུར་རོགས་པ།

skad sgyur rogs pa

The translator’s companion — not the translator.

སྐད་
ke · skad
speech, voice, language
རོགས་
rog · rogs
a friend, a helper, a companion

Kerog does not translate for you. It works alongside you, giving you the words, their meanings, the places where the dictionaries differ, and a rough English translation to compare with your own reading.

It is meant for people who know some Tibetan or are learning it, whether with a teacher or among Tibetan speakers. It is not a way around the language but a support while you learn it: to help you understand a teacher’s voice note or a conversation, and to show you the words as you go.

The letter A within five concentric coloured rings, the image used as Kerog's icon.

The icon

This image is used in Dzogchen as well as Bön practices.

My Lama is a Kham Dzogchen master. This app began with his voice notes.

Why it exists

I made this to understand my Lama’s messages

He sends voice notes and photographs of texts on WhatsApp. I had nothing on the phone to help me with them: no app could take Tibetan audio or a page and turn it into words I could study, and by the time I was at a computer the moment had passed.

So Kerog starts from the share sheet. You hold the message, choose Share, and pick Kerog. The rest of the app was built around that step.

Hold

A voice note arrives

In WhatsApp, Messages, Files or another app. Hold it and choose Share.

Share

Choose Kerog

The recording opens in the app. A photograph of a page works the same way, or you can use the camera.

Read

Kerog reads it

It is divided into sentences and written out in Tibetan. Gloss then breaks it into words; Translate adds the English as well. Nothing is uploaded.

From WhatsApp to Kerog

A voice note is held down in WhatsApp and shared into Kerog. The Tibetan transcript comes first, then the English, then each word with its meanings. There is nothing to copy, and no connection is needed.

On the phone
Kerog showing a Tibetan passage broken into word chips, each with its first sense.
Word by wordEach sentence, its translation, then its words. The gloss can be hidden when you do not need it.
The dictionary answering the phonetic query 'tashi delek' with Tibetan script, Wylie and senses.
Look a word up by soundType what you heard. Tibetan script, Wylie and phonetics all go in the same field.
The note Kerog shows on first launch: the gloss comes first, nothing leaves the phone, and the translation makes mistakes.
Stated from the startThe first screen explains what Kerog is for, that nothing leaves the phone, and that the translation will make mistakes.
On the Mac

The same app, at a desk

Kerog is on the Mac as well, from the same download, and free there too. Everything runs on the Mac itself, without a connection, and your glossaries are the ones on your phone. What the Mac adds is room: the page beside its reading, a word’s meanings beside the word, and your glossaries in a window of their own beside both.

Kerog on the Mac: a photographed Tibetan page and the text read from it on the left; on the right, each sentence with its English and its words.
The page beside its readingThe page and the text read from it on the left; on the right, each sentence with its English and its words, glossed.
Paste

A page from a PDF

Take a screenshot of the page and paste it with ⌘V, or drop a scan or a photograph onto the window. Kerog straightens it and reads it line by line.

Click

The meanings, beside the word

Click a word and its entry opens next to it, each dictionary named, with the rest of the reading still in view.

Keys

The keyboard reaches all of it

⌘↩ translates, ⇧⌘↩ glosses, and ⌘1 to ⌘6 move between the modes. Every command is in the menus as well.

A word clicked in the reading on the Mac, its entry open beside it with the meanings from Rangjung Yeshe and Jim Valby.
Every meaning, next to the wordClick a chip and its entry opens in place, each dictionary named. Tap the meaning that fits and the chip shows it.
A pasted Tibetan passage on the Mac, translated, with each sentence's words underneath; some chips are marked with a dot.
A passage, sentence by sentencePasted text, translated, with the words under each sentence. A dot on a chip marks a meaning a glossary chose.
Five ways in

What each mode is for

Audio, Listen and Text run in both directions — Tibetan to English, or English to Tibetan.

Audio

Record, or share in a voice note from WhatsApp, Messages or Files. It is split on silence, transcribed, and translated sentence by sentence. Play it back and the sentence being spoken is highlighted as it goes; tap any line to play from there.

Listen

Live. Transcribes and translates while someone is still talking, a sentence at a time. Each line keeps the audio it was heard in, so you can play any one sentence back on its own afterwards.

Photo

Photograph a page, or share one in from your library. Kerog straightens it and suggests a crop, and you can adjust both by hand, always from the original photo. Then it is read line by line. Tap the page to see it large, above the text read from it, and compare the two.

Text

Type or paste Tibetan, or English. For the message that arrived as text rather than as a voice note — and for trying a sentence out while you are learning.

Look up

The dictionary on its own. Search in Tibetan script, in Wylie, in phonetics, or say the word out loud. You rarely know which of the three you are holding — the field works out which it was given.

Guides

How to work with it

The modes above say what each part of Kerog is for. The guides go through how to use it, step by step, on the iPhone and the Mac.

Correcting it

Every transcript is editable, and the translation follows

Speech and page recognition make mistakes, so every sentence can be corrected. Change a syllable, tap elsewhere, and that sentence is translated and glossed again with your correction. The English for the whole passage, at the top, updates with it.

Any line of Tibetan can also be read aloud, and what is spoken can be shared as an audio file — back into WhatsApp, for example.

A correction

One syllable is corrected here. As soon as you tap elsewhere, the English and the word meanings update, and so does the English for the whole passage at the top of the screen.

What to expect

What to expect of it

This is the note Kerog shows on its first launch, before anything else.

The point

Every word, with its meanings

Each sentence is divided into its words, with their meanings from ten Tibetan dictionaries. Online translators handle whole sentences better, but when you are travelling with little or no data, or talking with the people around you, this gives you every word straight away.

Privacy

Everything happens on this phone

Listening, reading photographed pages, translating, speaking and the dictionary all run on this device. There is no account and no server: nothing you record, type or photograph leaves the phone, and all of it works in aeroplane mode.

iPhone and Mac

Your glossaries, on iPhone and Mac

Kerog is on the Mac as well, from the same download. Where iCloud Drive is on, the meanings you keep in your glossaries are stored in a Kerog folder there, so your iPhone and your Mac hold the same ones. That is all Kerog puts in iCloud: each word and its meaning, never the sentence it was chosen in. Settings can keep them on this phone instead.

First run

The first translation is the slow one

Translating on a phone means loading a model the size of the app itself, and that happens the first time you ask for it. Expect a wait of up to a minute or so, once. After that the model stays loaded and translations start straight away.

Battery

Heavy work for a phone

Listening, reading pages and translating on the phone itself take a lot of computing. While they run, the phone may grow warm, the battery runs down faster than usual, and things can slow down — most of all over a long session. That is the cost of keeping everything on the device; tasks you send to the Cloud run on Monlam AI’s servers instead.

Accuracy

Expect the translation to get things wrong

The models are chosen to fit on a phone alongside everything else, and it shows. Names, rare spellings and long sentences are where they fail. Read the English as a rough first pass — the gloss underneath is what to check it against.

With a connection

More accurate with the Cloud (Monlam AI)

When you do have a connection, cloud models are far larger than anything that fits here. In Settings, choose which tasks go to the Cloud — audio, translation, pages — leaving the rest on the phone. It uses monlam.ai’s free public service, so there is no key and no bill, but nothing promises it will be there: when it is busy or gone, the phone takes the task back. The gloss and everything you leave switched off never go anywhere. What gets sent, exactly.

Coming

Better models are on the way

The models on the phone are about two years old, and Tibetan AI has improved a great deal since. The Monlam AI team is working on new ones. Each new model is tested with this app as it is released, and any that does better and fits on a phone will arrive in an update.

The price

Free to use

Kerog has no price, subscription, advertising, analytics or accounts, and that will not change. It is made by one person, for a small community, and it is not a business.

It is not a professional tool. It is meant to help people learn Tibetan, and to understand what their teachers are saying.

iPhoneMacOne download for both.

Credits

Built out of other people’s work

Kerog trains no models and compiles no dictionaries. Everything it knows was made by the people below and released for others to build on. Copyright in each stays with its author; this app converts and bundles them, and does not own them. The same list is in the app, under Settings.

Models on the phone

The dictionaries

  • Rangjung Yeshe Rangjung Yeshe Tibetan-English Dharma Dictionary 3.0 Erik Pema Kunsang, 2003.
  • Jim Valby James Valby’s Tibetan-English Dictionary James Valby.
  • Tsepak Rigdzin Tibetan-English Dictionary of Buddhist Terms Tsepak Rigdzin — revised and enlarged edition.
  • Dan Martin Tibetan Vocabulary Dan Martin, 2003.
  • Ives Waldo Ives Waldo’s glossary compilation Ives Waldo.
  • Compiled and kept in step by christiansteinert/tibetan-dictionary Christian Steinert, whose collection the app imports from.

Anki decks

Learner vocabulary, shared as decks by their authors. Where a deck names nobody, it is credited by its title.

  • The Heart of Tibetan Language, V1–V3
  • Small Steps Tibetan’s First 1000 Tibetan Words
  • LRZTP Tibetan — Ocean of Words

And

  • How a word sounds bophono, KVP scheme Esukhia. The phonetics tables are theirs; the state machine that reads them on the phone is a port of their code.
  • Line detection and English speech Vision · Speech · AVFoundation Apple — shipped with iOS and macOS.
  • The Cloud, when it is switched on Monlam AI Its hosted Tibetan models stand in for the ones on this phone whenever a task is switched over to them.

Every model and every dictionary above is somebody else’s work, released on its own terms and credited here by name. Kerog itself has no price, no subscription, no ads and nothing sold.