التطبيق بيحفظ البيانات على التليفون.

A natural Egyptian pronunciation is:

et-tatbīʔ biyḥfaẓ el-bayānāt ʿala et-tilifōn

A simpler learner-friendly version would be:

et-tatbee’ biyehfaz el-bayanaat ʿala et-telefoon

A few pronunciation notes:

• تطبيق ends in a glottal stop in Egyptian speech: -bee’
• ح in بيحفظ is a strong h sound from the throat
• ظ in يحفظ is usually pronounced like an emphatic z in everyday Egyptian

Because of the sun letter / moon letter rule.

• In التطبيق and التليفون, the first real consonant is ت, which is a sun letter
  • So the l of ال disappears in pronunciation
  • التطبيق sounds like et-tatbīʔ
  • التليفون sounds like et-tilifōn
• In البيانات, the first consonant is ب, which is a moon letter
  • So the l stays
  • البيانات sounds like el-bayānāt

So the spelling stays the same, but pronunciation changes.

In Egyptian Arabic, بيـ often marks the present / habitual form of the verb.

So بيحفظ can mean things like:

• saves
• is saving
• does save
• usually saves

The exact English translation depends on context. In a tech sentence like this, بيحفظ is a very natural way to say saves.

Because the subject التطبيق is grammatically masculine singular.

In Egyptian Arabic:

• هو بيحفظ = it/he saves
• هي بتحفظ = it/she saves

Since التطبيق is masculine, the verb takes the yi-/bi- type form: بيحفظ.

If the subject were a feminine noun, you would expect بتحفظ instead.

It comes from the verb حفظ.

This verb has a range of meanings, including:

• to preserve
• to keep
• to save
• to memorize

In technology contexts, it often means to save or to store.

So in this sentence, بيحفظ is the everyday Egyptian way to say that the app saves the data.

Because the last letter is ق, and in Egyptian Arabic ق is very often pronounced as a glottal stop.

So:

• MSA-style pronunciation: taṭbīq
• Egyptian pronunciation: tatbīʔ

That is very normal in Egyptian Arabic. So التطبيق is commonly pronounced et-tatbīʔ.

This is a very normal Egyptian Arabic word order: subject + verb + object.

So:

• التطبيق = the app
• بيحفظ = saves
• البيانات = the data

Egyptian Arabic often likes this order, especially when the subject is definite and already known.

A verb-first order is also possible in Arabic in some contexts, but التطبيق بيحفظ البيانات sounds very natural and straightforward.

It is plural in form.

بيانات is commonly used to mean:

• data
• information
• sometimes details

In modern Arabic, especially in technical language, it works very much like English data. Even though English speakers often treat data like a mass noun, Arabic بيانات is morphologically plural.

In this sentence, that does not change the verb, because البيانات is the object, not the subject.

In tech contexts, على is very commonly used for the idea of something being on a device, platform, or surface.

So على التليفون naturally means something like:

• on the phone
• stored on the phone
• available on the phone

في التليفون can also be said in some situations, but it tends to feel more like:

• inside the phone
• in the phone

For app/data language, على التليفون is very natural.

Yes, التليفون is completely normal in Egyptian Arabic.

Other possibilities include:

• الموبايل = the mobile / cellphone
• الهاتف = the phone, but this sounds more formal or MSA

So in everyday Egyptian:

• التليفون is common
• الموبايل is also very common

If you changed the word, the sentence would still be understandable, but التليفون fits everyday Egyptian well.

The clearest sign is بيحفظ.

In Egyptian Arabic, the present tense commonly uses bi-:

• بيحفظ

In MSA, you would more likely see:

• يحفظ التطبيق البيانات على الهاتف or
• يخزن التطبيق البيانات على الهاتف

Also:

• التليفون feels colloquial
• الهاتف would feel more standard/formal

So this sentence clearly sounds Egyptian and everyday, not formal MSA.

Because this is normal Arabic spelling, and especially normal for colloquial Arabic.

Two important points:

• Arabic usually does not write short vowels in ordinary text
• Egyptian Arabic does not use the full case-ending system that learners see in MSA grammar books

So you see:

• التطبيق
• بيحفظ
• البيانات
• على التليفون

without extra endings. That is exactly what you should expect in everyday Arabic writing.

Yes. حفظ is a broad verb.

Depending on context, it can mean:

• save
• keep
• preserve
• memorize

In a sentence about an app and data, the technical meaning save/store is the most natural one. But it is useful to know that the same verb appears in many other contexts too.