石油标准 vs Readora
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
石油标准
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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。
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.
- 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
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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
Verdict
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
Both are free to download. Readora sells 1 one-off in-app purchase. 石油标准 asks for nothing beyond the download.
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.
| Parameter | 石油标准 | Readora |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (5 ratings) — better |
| Positive reviews | 30.0% of reviews | 63.6% of reviews — better |
| Number of ratings | — | 5 — better |
| Update frequency | Every 4 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 12.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 37 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | 石油工业出版社 | 澄娜 余 |
Customer experience
石油标准
Readora
In-app purchases
石油标准
No in-app purchases
Readora
- Permanent$4.99









