To know which juz a recitation belongs to, identify the exact verse first, then the juz follows from it. Open RecitID, tap Detect, and in about 18 seconds it names the surah, the precise verse or range, and the translation. Once you have the exact verse, the juz is settled.
Why guessing the juz from the surah is unreliable
The Quran is divided into 30 juz (ajza in the plural; called para across South Asia). It is tempting to reason from the surah name alone: you recognise the surah, so you assume you know the juz. The problem is that juz boundaries do not line up neatly with surah boundaries. A single juz often begins partway through one surah and ends partway through another, and a longer surah can be spread across more than one juz.
That mismatch is exactly where guesswork breaks down. Two people can correctly name the same surah and still disagree about the juz, because the passage being recited sits either side of a boundary that falls in the middle of that surah. Knowing the surah narrows things down, but it does not resolve the juz on its own.
This is why we point you towards the verse rather than the surah. The surah tells you roughly where you are; the exact verse tells you precisely where you are, and precision is what a juz boundary demands.
The reliable way: pin the exact verse, and the juz follows
The dependable method has one step you can actually trust: get the exact verse. RecitID listens to the recitation and returns the surah together with the specific verse or verse range, over 95% accurate on clear audio. Once the verse is fixed, there is no ambiguity left about which juz it sits in.
In practice it looks like this:
- Open the app and tap Detect while the reciter is speaking.
- Wait about 18 seconds while it listens.
- Read the surah and the exact verse it returns, with the translation in your language.
- From that exact verse, the juz is determined for you.
If you want to understand the surah-level side of identification in more depth, our companion guide on what surah is this covers that ground. This article stays with the juz question specifically, and the honest answer to that question is: let the app fix the verse, and stop guessing at the boundary.
Translations are available in 38 languages, so whether you are following along in English, Urdu, Indonesian, French or another language, the verse comes back in a form you can read and place.
Following a full taraweeh with Auto-Detect
Taraweeh is where this question comes up most. In many mosques a portion of the Quran, often around a juz, is recited across the night, and the imam moves steadily through it. If you tap Detect once, you get a single snapshot. But over a long standing, the recitation keeps moving, and one snapshot only tells you where the imam was at that moment.
This is what Auto-Detect is built for. Instead of a single tap, it listens continuously in the background and logs each verse as the reciter moves through the passage. Across a long taraweeh you end up with a running sequence of verses, which lets you see the arc of the night rather than a single point.
The two modes suit different moments:
- Detect — a single tap when you just want to know where the imam is right now.
- Auto-Detect — continuous background listening that logs each verse, useful when you want to follow the whole portion and see the sequence unfold.
There is also a Smart Scanner mode that reads printed text with the camera, which is handy if you have a mushaf open in front of you rather than only audio to work from.
A note on Juz Amma and the thirty-juz structure
Because the Quran is arranged into 30 juz, the juz is a natural unit for memorisation and for pacing recitation. The best known of them is the thirtieth, commonly called Juz Amma — the last part, and the one most people memorise first. If the passage you are hearing turns out to sit in that final juz, that is the part being referred to.
Beyond that, we will not tabulate which surahs fall in which juz here, and you should be wary of any quick chart that claims to. As covered above, the boundaries fall mid-surah, and a table that looks tidy can quietly mislead. The Quran holds 114 surahs and 6,236 verses; the surest way to place any of them in a juz is to identify the exact verse and let that resolve the rest.
If you would like to know more about who is reciting as well as what, the reciters side of the app can name the voice when it recognises it, alongside the verse.
Frequently asked
Can the app tell me the juz directly?
It gives you the exact surah and verse, and the juz follows directly from that. Because the exact verse is unambiguous, once you have it there is no guesswork left about which juz you are in.
Why not just go by the surah name?
Because juz boundaries fall in the middle of surahs. Knowing the surah gets you close, but a passage inside that surah can sit either side of a boundary, so the surah alone cannot settle the juz. The exact verse can.
How do I follow the imam across a whole taraweeh?
Use Auto-Detect. It listens continuously and logs each verse as the reciter moves through the portion, so you get the sequence across the night rather than a single snapshot from one tap.
Do I need to pay to use this?
No. The free plan gives you 5 detections a day with no ads. If you want unlimited detections, Pro and Pro+ remove the limit and come with a 7-day free trial. You can compare them on the pricing page.
Next taraweeh, when you find yourself wondering which juz the imam is on, let the app pin the verse and the answer settles itself. Download RecitID for iOS and Android to try it.