How we build
Made with care, because it’s about our deen.
These are the rules we hold ourselves to. Each one is written down where we work, and we check our own work against it.
Who we are
Assalamu alaikum. I’m Ryan Khalil, a Muslim father of boys and the founder of LMKdev. I build the tools I want in my own home and give them away.
- Sabrfy: prayer times, the Qur’an, the qibla and places to pray. The iPhone app is in testing.
- LMK Principles: a guidebook for parents raising kids who are ready for life by 18. In development.
- myOS: my own day-to-day app, where most of this gets tried first.
Free, with nothing hidden
No forced ads
No banners, no pop-ups, nothing you have to sit through. Nothing locked behind a subscription.
No trackers
No third-party trackers on the site, no analytics kit in the app. The site counts visits in aggregate, without cookies.
Nothing sold
Your location stays on your device. We have nothing to sell, and we wouldn’t.
Kept up by tips
People who can chip in leave a tip. A tip buys nothing extra; it keeps the app free for the next person.
How we handle sacred text
- No AI-written scripture or hadith. Ever. No machine paraphrase of the Qur’an, no generated tafsir, no hadith typed from memory. A model can make a sentence sound right and get the meaning wrong, and nobody would know which verse.
- The Arabic is kept exactly. The Qur’an text is the Tanzil Project’s, copied byte for byte. The app fingerprints the file and its checks fail if a single character changes.
- Every text names its source. Translator, book and licence are shown where the text appears and again on the Sources page. If we can’t say where something came from, it doesn’t go in.
- Hadith come with their reference. Collection and number, every time. For the hadith collection we’re building now, we use only those graded ṣaḥīḥ or ḥasan, and we name the scholar who graded each one.
- Unchecked means labelled. Anything still waiting for a scholar’s or teacher’s review says so on screen. Our list of the 99 Names and our salah and wudu steps carry that label today.
- We translate the buttons, not the scripture. The app speaks 16 languages, but the Qur’an and every translation of its meaning stay in the words of the person who wrote them.
When we get it wrong
A correction, October 2026
The English Qur’an in myOS is Pickthall’s 1930 translation, which is in the public domain, and it is the edition Sabrfy is cleared to use. Our copy came from a widely used digital file. Before using Sūrat Luqmān for a parents’ collection, we read 31:12–19 word by word against a scan of the 1930 printing.
Verse 14 in the digital copy read concerning his
. Pickthall printed partnersconcerning his parents
. That’s the verse about a mother carrying her child in weakness upon weakness, and it was wrong in the copy everyone shares. We fixed our copy, recorded the page of the printing we fixed it from, and wrote the rule down: any future change has to cite the printed page.
To be clear, we have only checked those eight verses against the printing so far. The rest of the translation is still to be checked.
Our halal line
This goes for everything LMKdev makes, not just Sabrfy:
- Halal in everything we make or put our name to: recipes, pictures, examples.
- No gambling. No betting, no paying for a chance at a prize.
- No riba. Our money lessons for kids teach earning, saving and giving, not interest.
- No overclaiming. Sabrfy’s halal-food list is a public listing, not a certification, and the app says so.
How we reference the people whose work we use
Most of what we show was translated, digitised or mapped by someone else, often for free. This is how we credit them, every time:
- On the screen itself. Wherever someone’s text appears, their name and the name of their work appear with it. A hadith shows its collection and number, and in the hadith collection we’re building, the grade and the scholar who graded it.
- On our Sources page. Every source is listed on our Sources page with its translator or publisher, its licence, and a link to their own site or store.
- Word for word. We quote a translation exactly as it was published. We don’t reword it, shorten it or mix it with anyone else’s.
- Support the source. We ask the people who use our apps to support the people who made the text: buy the translator’s book, or give to the project that made it available. Those links sit on the Sources page.
- We ask first. When a translation isn’t free to use, we write to the translator or publisher and wait for a written yes before it goes in. If they say no, we leave it out.
We don’t make money from anyone’s work
Our goal is to help Muslim families, not to earn from the Qur’an, the hadith or the work of the people who translated them. Our apps are free. There are no forced ads, no subscriptions, and nothing is sold, including your data. Some people choose to leave a tip. Tips only help cover what it costs to keep the apps running, they buy nothing extra, and they are never tied to anyone’s text. We will never charge for, or sell access to, the work of the translators and projects we credit.
Your privacy, briefly
Prayer times and directions are worked out on your device. Signing in is optional; if you do, we keep your email and your settings so they follow you to a new phone, and we delete them when you ask. Tips go through Apple, and we never see your card. The full privacy page.
Spotted a mistake?
Please tell us. Email hello@lmkdev.com with what you saw and where. In the app, anything marked ⚠︎ has a button to report it. We check every correction to religious text against the printed source, and fix it.
Privacy questions: privacy@lmkdev.com.
Common questions
- Does Sabrfy use AI to write or translate the Qur’an or hadith?
- No. Every Qur’an text and every translation in Sabrfy was written by a named human and is shown with its source. The app’s buttons and menus are translated into other languages, but scripture never is.
- Is Sabrfy really free?
- Yes. No forced ads, no subscription, nothing locked. People who can chip in leave a tip, and a tip buys nothing extra.
- Does Sabrfy sell or share my data?
- No. Your location stays on your device. The website has no third-party trackers; it counts page views in aggregate without cookies.
- How does Sabrfy credit translators and publishers?
- Their name and work appear on every screen where their text appears, and again on the Sources page with a link to their site or store. We quote them word for word, and we point our users to support them by buying the book or giving to the project.
- Does Sabrfy make money from the Qur’an or hadith translations it shows?
- No. The apps are free, with no forced ads and nothing sold. Optional tips only help cover running costs, buy nothing extra, and are never tied to anyone’s text.
- How do I report a mistake?
- Email hello@lmkdev.com with what you saw and where. Corrections to religious text are checked against the printed source before anything changes.