Comparison

PTTEP E vs Storius Reader

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

Head to head
About

PTTEP E

Features
Read full description

The PTTEP E-Library app offers you a digital life of reading on mobile devices. It enables you to enjoy a popular e-books, e-magazines as well as e-books published by PTTEP. It is totally FREE for the company’s employee. “We create happiness in all reading with excellent service and green technology.” About PTTEP E-Library App. Cloud Library All eBooks you download will be stored automatically in the cloud library, allowing you to enjoy them on up to three devices. Bookmarks, the current page you're enjoying, and all other data are synced across all your devices. Enjoy eBook Anytime, Anywhere All eBooks you borrowed will be available for re downloads for an unlimited number of times until expiry date, so you can enjoy them even after you change your device or upgrade the OS. Once downloaded on the device, you will be able to enjoy your eBooks anytime, anywhere, even in places where Internet connection isn't available. Easy and Simple It's easy and simple to use the app, and it's equipped with intuitive tools allowing you to bookmark your eBooks, write notes and comments, search for words, and more. Bookshelves Personal bookshelves or “My Shelf” allows you to organize your eBooks on your devices easily. In case not enough memory is available on your device, it's OK to delete them from your bookshelves, because they would be stored in the cloud library for you to download again anytime.

About

Storius Reader

Organize and read your Storius books in a single library. Customize your reading experience with adjustable fonts and spacing. Enjoy a built-in audiobook player with playback controls and a sleep timer.

Highlights
  • Centralized book management
  • Customizable reading settings
  • Built-in audiobook player
  • Adjustable playback speed
  • Cross-device syncing
  • Sleep timer
Features
Read full description

MANAGE YOUR BOOKS Keep your Storius books in one place and start reading any book in your library with just a tap. HOW DOES IT WORK When you buy or receive books from Storius, they will be added to your app library automatically. Tapping any book cover in the app will open it instantly. READ COMFORTABLY Read in our app or cloud reader and customize the settings for your comfort. Choose your ideal font type and text size, line spacing, and margins. Tap any book cover in your library to open it in our reader and get started. START LISTENING NOW The built-in audiobook player has the features you expect— bookmarks, download quality, and a beautiful, easy-to-navigate player. The Storius app also gives you the ability to fine-tune the settings you really care about, including playback speed, custom skip-back and skip-forward buttons, and a sleep timer. READ WHERE YOU LIKE Sync your books across devices and never lose your place. When you’re reading a book in our app, it will automatically mark your last page read and take you back to it the next time you open the book, so switch freely between your phone and tablet and back again.

Screenshots

PTTEP E4 screens
Storius Reader4 screens

Verdict

The call

The clearest difference is update cadence: PTTEP E at every 3 months against Storius Reader's every 15 months. Storius Reader's advantage is iOS requirement (11.0 vs 14.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

PTTEP E ships an update every 3 months, Storius Reader every 15 months. The most recent releases landed on September 19, 2026 and August 15, 2026 respectively.

Scorecard2 real differences · 7 level
PTTEP E versus Storius Reader: the parameters behind the verdict, then further details
ParameterPTTEP EStorius Reader
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 months — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.011.0 — better
Further details — not scored
Size25 MB41 MB
Age rating9+9+
DeveloperBOOKDOSE COMPANY LIMITEDBookFunnel

In-app purchases

None

PTTEP E

No in-app purchases

None

Storius Reader

No in-app purchases

Questions

Is PTTEP E free?
PTTEP E is free to download, with no in-app purchases.
Is Storius Reader free?
Storius Reader is free to download, with no in-app purchases.
Do PTTEP E or Storius Reader have ads?
Neither PTTEP E nor Storius Reader shows ads.
Which is updated more often, PTTEP E or Storius Reader?
PTTEP E ships an update every 3 months, and Storius Reader every 15 months. Most recently, PTTEP E was updated on September 19, 2026 and Storius Reader on August 15, 2026.

Other comparisons