Where everything comes from
Khalis is free, with no ads, no tracking and no account. It is built on the generous work of others, credited here with the terms each is used under. Where Khalis has changed something, it says what.
- 6,236verses from Tanzil
- 6reciters, named below
- 86hadiths from HadeethEnc
- 12credits in the app’s own list
The same list is in the app, under Settings › Sources and credits. This page gives a little more of each: what Khalis uses it for, the licence, and any change made to it.
The text, and what sits around it
The Arabic and its English, the commentary, the tajweed colours and the look-alike verses all come with the app, so they open without a connection.
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Quran text
Tanzil Project, Uthmani text, version 1.1 · tanzil.net
The Arabic of all 114 surahs, 6,236 verses, in the Uthmani script. The 30 juz follow the standard Madani division, as Tanzil publishes it.
- Changes
- None. Tanzil allows verbatim copies only, so the text is copied exactly, with Tanzil’s notice kept at the top of each surah’s file in the app. The notice in full
- Used in
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English translation
Marmaduke Pickthall, The Meaning of the Glorious Koran (1930), via Tanzil
The English under each verse. It is on to begin with, and you can turn it off.
- Licence
- The 1930 text is out of copyright. Tanzil’s terms for its translations ask for non‑commercial use, and Khalis is free, with no ads or payments.
- Changes
- None. Tanzil’s note for this translation is kept with it: see below.
- Used in
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Tafsir al-Jalalayn
Jalal al-Din al-Mahalli and Jalal al-Din al-Suyuti, digitised by Quranpedia.net (book 272, from its data of 10 August 2026)
The classical commentary, in Arabic, opened verse by verse. Where one passage explains several verses, Khalis shows that passage for each of them.
- Licence
- The Quranpedia data licence: free to use inside apps. It asks for no credit, though a link is appreciated, and here it is with thanks.
- Used in
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Tajweed colours
quran-tajweed by Collin Fair, from its file output/tajweed.hafs.uthmani-pause-sajdah.json
The colours on the Arabic. The data marks 18 tajweed rules; Khalis shows them in seven colours, with a key.
- Changed for Khalis
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The 60,057 marked ranges were made against Tanzil’s text as it was in 2017. Tanzil now writes a few marks differently, so Khalis moves each range onto the current text: 4,601 of them shift where a hamza or a small high yeh is now written as two characters. Each moved range is checked to cover the same letters as before.
Only the data is used, not the project’s code.
- Used in
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Similar verses
Quran_Mutashabihat_Data by Waqar144, based on the work of the late Qari Idrees Al Asim
The mutashabihat: verses that are easily confused with one another, shown in Memorise mode. A memorisation aid, and, as its author notes, not an exhaustive list.
- Licence
- CC0 1.0, public domain
- Used in
Six reciters, credited by name
The recordings are not part of the app. They are streamed when you press play, or saved on your own phone when you download a surah.
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Recitation audio
Islamic Network, verse-by-verse recordings from cdn.islamic.network
- Mishary Alafasy
- Mohamed Siddiq al-Minshawi
- Abu Bakr ash-Shaatree
- Hani ar-Rifai
- Abdur-Rahman as-Sudais
- Mahmoud Khalil al-Husary
- Terms
- Islamic Network’s terms and conditions: free for non-commercial streaming and personal download, with the reciter credited. Reciters may ask for their recordings to be removed.
- Used in
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Word-by-word timings
quran-align by Collin Fair, the release of 24 November 2016
Lights each word as it is recited, for the four reciters marked above, whose streamed recordings match the aligned files byte for byte. The As-Sudais file in that release is damaged, so it is not used.
- Changed for Khalis
- Put into a compact form for the app, keeping only the timings that fall within each verse’s words.
- Used in
Adhkar and duas, unchanged
Each hadith is shown as HadeethEnc publishes it, in Arabic and English, with its attribution and grade.
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Adhkar and duas
HadeethEnc.com, the Encyclopedia of Translated Prophetic Hadiths
86 hadiths from its categories for morning and evening, sleep, prayer, home, mosque and bathroom, hard times, remembrance at any time and reported duas. Khalis sets them out in seven sections, each entry with its title, the English, the Arabic, the attribution and the grade.
- Terms
- HadeethEnc allows its translations to be republished if they are not changed, the source is named, the version is given, and they are kept up to date.
- Version
- Taken from HadeethEnc’s API, version 1, on 28 October 2026. The API gives no other version number.
- Changes
- None. Each field is copied exactly as HadeethEnc gives it; nothing is shortened or edited.
- Used in
The times, and the call to prayer
Prayer times and the Qibla are worked out on your phone. The two adhan recordings are part of the app.
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Prayer time calculation
Adhan by Batoul Apps (adhan-js, version 4.4.6)
Works out the day’s prayer times and the direction of the Qibla from your location and the calculation method.
- Licence
Copyright (c) 2016 Batoul Apps
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Short adhan
Wikimedia Commons: “Adhan.ogg” by Aishatu98
One of the two adhan sounds you can choose for each prayer, besides a chime. It is also offered as the sound for the night alarms.
- Licence
- CC0 1.0, public domain
- Changed for Khalis
- Loudness-normalised and, for iPhone notifications, trimmed to its first 29.5 seconds with a fade, because iPhone stops notification sounds after 30 seconds.
- Used in
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Full adhan
Aaqib Azeez, “The Adhan – Muslim Call to Prayer” (Wikimedia Commons, uploaded by Atcovi)
The other adhan sound you can choose for each prayer, and for the night alarms.
- Licence
- CC BY-SA 4.0
- Changed for Khalis
- Trimmed, made mono, faded and loudness-normalised. For iPhone notifications and alarms Khalis uses its opening, up to the first pause (27.7 seconds). The changed files are shared under CC BY-SA 4.0 too.
- Used in
The letters on every screen
The app’s fonts are bundled with it, so nothing is fetched to show them.
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Fonts
Aboreto, Figtree, Amiri and Amiri Quran, via Google Fonts
Aboreto for headings, Figtree in regular, medium and semibold for text, Amiri Quran for the verses of the Quran, and Amiri for the other Arabic, such as the adhkar.
- Licence
- SIL Open Font Licence 1.1
What this site uses
The site is plain HTML, CSS and JavaScript. Its prayer-time library, fonts and city list are copies of the app’s own, and the library and fonts keep their licences beside them.
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Prayer times
Adhan by Batoul Apps, version 4.4.6, the same build the app uses
Works out the prayer times shown on these pages, in your browser.
- Licence
MIT licence, in full at assets/js/adhan-LICENSE.txt
Copyright (c) 2016 Batoul Apps
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City list
The app’s own list of 45 cities in 34 countries
Each city has its coordinates, its time zone and the calculation method the app picks there, the one most mosques there follow. It is copied from the app, so the site and the app agree.
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Fonts
Aboreto, Figtree and Amiri Quran, the same font files as the app’s
Aboreto for headings, Figtree in regular, medium and semibold for text, and Amiri Quran for the Arabic.
- Licence
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SIL Open Font Licence 1.1, with each font’s licence file beside it:
- Aboreto: OFL-Aboreto.txtCopyright 2022 The Aboreto Project Authors (https://github.com/domija/Aboreto)
- Figtree: OFL-Figtree.txtCopyright 2022 The Figtree Project Authors (https://github.com/erikdkennedy/figtree)
- Amiri Quran: OFL-AmiriQuran.txtCopyright 2010-2022 The Amiri Quran Project Authors (https://github.com/aliftype/amiri).
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Screens and quotations
Khalis itself
The pictures of the app are screens from Khalis, in its light theme. The verses and adhkar on these pages, and in those screens, come from the sources above through the app’s own data, and are credited where they appear.
Tanzil’s notice
Tanzil asks for this notice to be kept with its text. Here it is as the app keeps it, with the note for Pickthall’s translation that comes with it. For updates to the text, see tanzil.net.
PLEASE DO NOT REMOVE OR CHANGE THIS COPYRIGHT BLOCK
Tanzil Quran Text (Uthmani, Version 1.1) Copyright (C) 2007-2026 Tanzil Project License: Creative Commons Attribution 3.0
This copy of the Quran text is carefully produced, highly verified and continuously monitored by a group of specialists at Tanzil Project.
TERMS OF USE:
- - Permission is granted to copy and distribute verbatim copies of this text, but CHANGING IT IS NOT ALLOWED.
- - This Quran text can be used in any website or application, provided that its source (Tanzil Project) is clearly indicated, and a link is made to tanzil.net to enable users to keep track of changes.
- - This copyright notice shall be included in all verbatim copies of the text, and shall be reproduced appropriately in all files derived from or containing substantial portion of this text.
Please check updates at: http://tanzil.net/updates/
Quran Translation Name: Pickthall Translator: Mohammed Marmaduke William Pickthall Language: English ID: en.pickthall Last Update: September 4, 2010 Source: Tanzil.net
With thanks to everyone whose work is here.
If your work is listed and something is wrong or missing, or you would like it changed or removed, please say so.
A contact address will be added here before Khalis is released.