Comparison

۵۰۴ لغت ضروری vs Rah Book Reader

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

۵۰۴ لغت ضروری

Master 504 essential English words with this app, featuring explanations, Persian meanings, and audio pronunciations. Utilize the Leitner system for effective learning and track your progress with charts. Save your favorite words for quick review.

Highlights
  • 504 essential words
  • English explanations and Persian meanings
  • Audio pronunciation
  • Leitner learning system
  • Progress tracking charts
  • Favorite words list
Features
Read full description

•• مجهز به جعبه یادگیری «لایتنر» به همراه نمودار نحوه پیشرفت •• شامل جملات کتاب و معنی أنها برنامه «۵۰۴ لغت ضروری» برنامه ای طراحی شده برای آیفون و آیپد که ۵۰۴ لغت کاملا ضروری را از کتاب معروف بارونز به همراه توضیح و معنی آن شامل می شود. این کتاب از مراجع بسیار مهم برای امتحان TOEFL (تافل) و IELTS است. تلفظ صوتی انگلیسی لغت و توضیح آن از جمله امکانات این برنامه است. همچنین می توانید لغت های دلخواه را برای ارجاع بعدی در لیست مورد علاقه ها قرار دهید. • شامل ۵۰۴ لغت مهم و کاربردی • توضیح انگلیسی و معنی فارسی • تلفظ صوتی انگلیسی لغت و توضیح آن • امکان افزودن به مورد علاقه ها • جهت بهتر شدن برنامه لطفا نظرات و پیشنهادات خود را به info@ghazalestan.com بفرستید • برای مشاهده سایر برنامه ها به سایت غزلستان مراجعه کنید: http://ghazalestan.com/apps.php

About

Rah Book Reader

This application allows users to download and read PDF documents and audiobooks. It offers a simple and free experience for accessing digital content on mobile devices.

Highlights
  • Download PDF documents
  • Read audiobooks
  • Simple interface
  • Free to use
  • iPhone and iPad compatible
Features
Currently charting
Read full description

Rah Book Reader is a free and simple app, allowing you to download and read online PDF documents & audiobooks with ease on your iPhone and iPad.

Screenshots

۵۰۴ لغت ضروری4 screens
Rah Book Reader4 screens

Verdict

The call

The clearest difference is price: Rah Book Reader at Free against ۵۰۴ لغت ضروری's $2.99. Rah Book Reader also leads on ratings volume (9.1K vs 3) and chart position (#145 vs unranked). ۵۰۴ لغت ضروری's advantage is rating (5.0 vs 4.7) and update cadence (every 2 months vs every 5 months). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Rah Book Reader is free to download; ۵۰۴ لغت ضروری costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

۵۰۴ لغت ضروری holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Rah Book Reader has 9.1K ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 71% and 72% positive.

UpkeepUpdate frequency

۵۰۴ لغت ضروری ships an update every 2 months, Rah Book Reader every 5 months. The most recent releases landed on October 11, 2026 and October 18, 2026 respectively.

Scorecard6 real differences · 5 level
۵۰۴ لغت ضروری versus Rah Book Reader: the parameters behind the verdict, then further details
Parameter۵۰۴ لغت ضروریRah Book Reader
Price$2.99Free — better
Rating5.0 (3 ratings) — better4.7 (9.1K ratings)
Positive reviews71.4% of reviews72.1% of reviews — better
Number of ratings39.1K — better
Update frequencyEvery 2 months — betterEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank—#145 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size37 MB19 MB
Age rating4+4+
DeveloperGolden Mind Services LTDMajid Sharifi

Customer experience

۵۰۴ لغت ضروری

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

Rah Book Reader

All ratings9,116 ratings
Positive91.9%
Neutral3.5%
Negative4.5%
Written reviews373 reviews
Positive72.1%
Neutral2.9%
Negative24.9%

Bugs and requests

۵۰۴ لغت ضروری

Not enough reviews yet to summarise bugs or requests.

Rah Book Reader

Reported bugs

3 issues
  • App crashes after recent update
  • Books disappear from user library
  • Playback issues with audiobooks

Requested features

4 requests
  • Add support for ePub format
  • Implement highlighting and note-taking features
  • Improve syncing across devices
  • Optimize for tablet and landscape mode

In-app purchases

None

۵۰۴ لغت ضروری

No in-app purchases

None

Rah Book Reader

No in-app purchases

Questions

Is ۵۰۴ لغت ضروری free?
۵۰۴ لغت ضروری costs $2.99, with no in-app purchases.
Is Rah Book Reader free?
Rah Book Reader is free to download, with no in-app purchases.
Which has better reviews, ۵۰۴ لغت ضروری or Rah Book Reader?
۵۰۴ لغت ضروری is rated higher. ۵۰۴ لغت ضروری averages 5.0 out of 5 from 3 ratings, while Rah Book Reader averages 4.7 from 9.1K ratings.
Do ۵۰۴ لغت ضروری or Rah Book Reader have ads?
Neither ۵۰۴ لغت ضروری nor Rah Book Reader shows ads.
Which is updated more often, ۵۰۴ لغت ضروری or Rah Book Reader?
۵۰۴ لغت ضروری ships an update every 2 months, and Rah Book Reader every 5 months. Most recently, ۵۰۴ لغت ضروری was updated on October 11, 2026 and Rah Book Reader on October 18, 2026.

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