Comparison

石油标准 vs Readora

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

Head to head
About

石油标准

Features
Read full description

石油标准是一个综合的标准信息化服务平台,主要提供全套石油行业标准和中国石油企业标准的查询与阅读服务,用户可在移动设备上查询、阅读、使用标准的正式有效文本,以及获取到相关的标准化信息。同时,在社区模块中以微课形式实现线上的标准宣贯与标准培训。

About

Readora

Organize your personal ebook library, highlight favorite passages, and track your reading progress. Listen to books with text-to-speech and sync your data across devices. Unlock unlimited features with a one-time purchase.

Highlights
  • Import EPUB, PDF, TXT, MOBI
  • Organize library into categories
  • Highlight text and add notes
  • Track reading time and progress
  • Text-to-speech functionality
  • iCloud sync across Apple devices
  • Home screen widgets
Features
Read full description

Read more. Keep the words that stay with you. Readora brings your own ebooks, favorite passages and reading history into one calm, personal space. Open a book, swipe through its pages and return to the ideas you want to remember. YOUR BOOKS, TOGETHER Import EPUB, PDF, TXT and DRM-free MOBI files. Add supported books from ZIP and unencrypted RAR archives, organize your library into categories and read downloaded local books offline. Readora does not include a book catalog; you bring the books you have the right to use. READ AT YOUR PACE Turn pages with a swipe, adjust text size in supported formats and choose a light, paper or night background. Your reading position is saved so you can pick up where you left off. MAKE GOOD WORDS LAST Highlight selectable text, add notes and collect passages by book. Return to the source, turn a quote into a shareable card or revisit your collection with quote reminders. SEE YOUR READING GROW Review reading time and progress in your calendar and watch your reading garden take shape. Bring your bookshelf, quotes and garden to your Home Screen with widgets. LISTEN AND CONTINUE Listen to supported text with available voices and adjust playback speed. Optionally enable iCloud sync for your books, highlights and reading progress across your Apple devices. Voice and text support depend on the file, language and device. START SMALL, GROW WITH PRO The free library holds up to 3 books. Readora Pro is a one-time purchase that unlocks an unlimited library, highlights and notes, listening, widgets, the reading calendar and garden, quote reminders and iCloud sync. Your local price is shown in the app before purchase. Readora supports compatible, unprotected files. It does not remove DRM; encrypted or multipart archives and text recognition in scanned PDFs are not supported. Privacy Policy: https://readora.layseallone.com/privacy Terms of Use: https://readora.layseallone.com/terms

Screenshots

石油标准3 screens
Readora4 screens

Verdict

The call

The clearest difference is in-app purchases: 石油标准 at none against Readora's 1. 石油标准 also leads on iOS requirement (12.1 vs 17.0). Readora's advantage is review sentiment (64% vs 30%) and update cadence (every 5 days vs every 4 months). On price, ads 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

Both are free to download. Readora sells 1 one-off in-app purchase. 石油标准 asks for nothing beyond the download.

UpkeepUpdate frequency

石油标准 ships an update every 4 months, Readora every 5 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard4 real differences · 6 level
石油标准 versus Readora: the parameters behind the verdict, then further details
Parameter石油标准Readora
PriceFreeFree
Rating—4.8 (5 ratings) — better
Positive reviews30.0% of reviews63.6% of reviews — better
Number of ratings—5 — better
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.1 — better17.0
Further details — not scored
Size37 MB37 MB
Age rating4+4+
Developer石油工业出版社澄娜 余

Customer experience

石油标准

Written reviews10 reviews
Positive30.0%
Neutral20.0%
Negative50.0%

Readora

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive63.6%
Neutral27.3%
Negative9.1%

In-app purchases

None

石油标准

No in-app purchases

1 purchases

Readora

One-time1
  • Permanent$4.99

Questions

Is 石油标准 free?
石油标准 is free to download, with no in-app purchases.
Is Readora free?
Readora is free to download, with in-app purchases available.
Do 石油标准 or Readora have ads?
Neither 石油标准 nor Readora shows ads.
Which is updated more often, 石油标准 or Readora?
石油标准 ships an update every 4 months, and Readora every 5 days. Most recently, 石油标准 was updated on November 3, 2026 and Readora on November 6, 2026.

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