The Best Ebook Reader Apps and Online Bookstores for Bestselling Books in 2025

Scrolling through a never‑ending list of ebook apps and online bookstores can feel more confusing than relaxing with a good novel. In 2025, readers have more digital choices than ever, but that also means more decisions: Which app is easiest to use? Where can you reliably find new and bestselling books? How do subscriptions, bundles, and ownership really work?

This guide unpacks the best ebook reader apps and online bookstores for bestselling books in 2025, with a focus on clarity, everyday usability, and what actually matters when you’re deciding where to read and shop.

Understanding the 2025 Ebook Landscape

Before looking at individual services, it helps to understand how the ebook world generally works in 2025.

How People Are Reading Now

Many readers:

• Mix print and digital instead of choosing one format.
• Use multiple apps (for example, one for purchases, another for free titles or subscriptions).
• Prefer syncing across devices, so they can read a chapter on a phone, then continue on a tablet or laptop.
• Look for easy access to bestsellers, whether new releases, book club favorites, or trending titles on social platforms.

The takeaway: you may not need just one “perfect” app. Often, a small toolkit of 2–3 apps and bookstores works best.

Key Terms You’ll See Repeatedly

To read this guide comfortably, it helps to know a few recurring concepts:

• Ebook reader app – Software that lets you read digital books on phones, tablets, computers, or dedicated e‑ink devices.
• Online bookstore – A digital store where you buy or sometimes rent ebooks and audiobooks.
• Digital rights management (DRM) – Technology that controls how purchased ebooks are used, such as which app or device can open them.
• Subscription vs. ownership – Subscriptions give temporary access to a catalog as long as you keep paying. Purchases are typically long‑term access in that store’s ecosystem.

What to Look For in an Ebook Reader App or Bookstore

Different readers value different things. It helps to rank what matters most to you before choosing.

1. Catalog Depth and Bestseller Availability

If you like staying current with buzzed‑about books, pay attention to:

• Breadth of publisher partnerships – Platforms connected with major publishers usually offer a wide range of bestsellers.
• Local and indie options – Some apps highlight independent presses, translated works, or niche categories.
• Release timing – Popular bestsellers often appear on most large platforms, but exact release dates or regional availability can vary.

2. Reading Experience and Customization

A comfortable reading experience often includes:

• Font and layout control – Adjustable font size, line spacing, margins, and themes (light/dark/sepia).
• Annotations – Highlights, notes, and bookmarks that are easy to create and revisit.
• Syncing – Progress syncing across devices under your account.
• Accessibility features – Screen reader compatibility, adjustable contrast, and sometimes dyslexia‑friendly fonts.

3. Buying, Borrowing, and Subscriptions

Many platforms blend several models:

• Buy‑to‑own – You pay per title and keep access in that app’s ecosystem.
• Subscription reading – You pay monthly for access to a rotating catalog. Bestsellers may or may not be included.
• Borrowing or lending – Integration with libraries, family sharing, or limited lending between accounts.

Understanding these options helps you avoid paying for the same book twice or subscribing when you mostly want long‑term ownership.

4. Device Ecosystem and Portability

Consider:

• Where you read most – Phone, tablet, laptop, dedicated e‑reader?
• Ecosystem lock‑in – Some bookstores strongly connect to a specific device line, while others are more open.
• Offline reading – Ability to download books for travel or commuting.

Major Types of Ebook Platforms in 2025

Most ebook apps and online bookstores fit into a few broad categories.

1. All‑In‑One Ecosystem Stores

These are large platforms where you:

• Buy ebooks and audiobooks.
• Sync them across multiple devices within that brand’s ecosystem.
• Often combine reading with other services (music, video, cloud storage, etc.).

They typically focus strongly on bestsellers, new releases, and mainstream genres such as thriller, romance, fantasy, and nonfiction.

2. Device‑Independent Ebook Apps

These apps are usually available on both iOS and Android and sometimes desktop, and they:

• Let you import your own files (like EPUB or PDF) or buy from linked stores.
• Emphasize flexibility and customization over a single bookstore.
• May support multiple sources of books, including independent stores or libraries.

3. Library‑Connected Reading Apps

These focus on:

• Borrowing ebooks and audiobooks using a library card.
• Offering a broad range of titles, including many bestsellers, depending on your library’s selection.
• Time‑limited loans and waiting lists for popular titles.

They are ideal if you want bestsellers without paying per book, and your local library offers digital services.

4. Niche and Specialty Bookstores

Some online bookstores and apps target specific niches:

• Genre‑specific platforms (romance, fantasy, manga, etc.).
• Self‑published and independent author marketplaces.
• Region‑specific platforms emphasizing particular languages or countries.

These can be valuable if you read heavily within a genre or want to support certain communities of authors.

Comparing Ebook Reader Apps and Online Bookstores

The table below summarizes common strengths and limitations you might see across popular categories of platforms in 2025.

Ebook Reader Apps: What Stands Out in 2025

Different apps focus on different strengths. The options below are grouped by what they tend to do best, rather than by name, to keep the guidance more neutral and broadly applicable.

Apps Built Around Large Ecosystems

These apps typically:

• Integrate closely with major hardware (phones, tablets, e‑readers).
• Sync reading position, notes, and highlights automatically.
• Offer storefronts stuffed with current bestsellers, preorders, and daily or seasonal deals.

Common features include:

• Whispersync‑style syncing across devices.
• Integrated audiobook support, sometimes letting you switch between reading and listening.
• Cloud libraries that store purchased titles for re‑download.

Readers often choose these when they value convenience and polish over maximum flexibility. Many heavy ebook readers find it simple to keep everything in one ecosystem, especially when they already use that brand for other media.

Apps That Emphasize Customization and Open Formats

Device‑independent reading apps often give you:

• Extensive layout control (fonts, page backgrounds, spacing).
• Support for multiple file formats, such as EPUB, PDF, and sometimes more specialized ones.
• Local file importing, so you can sideload books from other stores, public domain sources, or personal documents.

These apps are appealing if you:

• Own ebooks from a variety of sources.
• Read technical PDFs, manuals, or academic texts alongside bestsellers.
• Prefer fine‑tuned control over how text appears on your screen.

Some readers use an ecosystem’s main app for purchases and syncing, and a separate custom reader app for personal or imported content.

Library‑Linked Reading Apps

In 2025, many public libraries support at least one Ebook + Audiobook borrowing platform. These apps often:

• Link directly to your local library card.
• Offer bestseller ebooks and audiobooks on loan, similar to physical books.
• Include wish lists, holds, and recommendations based on your borrowing history.

Typical features:

• Borrowing periods that vary by library.
• Hold queues for popular titles.
• Options to adjust font settings and sometimes support for read‑along children’s books.

These apps are useful if you want access to bestsellers without frequent purchases. The main trade‑off is patience: you may need to wait for high‑demand titles during peak popularity.

Online Bookstores for Bestselling Books in 2025

Now let’s look more directly at online bookstores and how they help you discover and buy bestsellers.

Large Global Bookstores

These stores are often connected to major tech companies and typically provide:

• Vast catalogs featuring new releases, bestsellers, classics, and backlist titles.
• Personalized recommendations based on your reading or browsing history.
• Bundles and discounts at certain times (seasonal sales, series bundles, etc.).

They tend to dominate search results for popular books, which makes discovery easy. If you search the name of a bestseller, these stores often appear as primary purchase points.

Common advantages:

• Instant delivery of ebooks and, in many cases, audiobooks.
• Unified accounts across devices running the same platform.
• Tools for managing a large digital library, such as sorting, tagging, or creating collections.

Readers who focus on mainstream bestsellers often gravitate to these stores because they usually get new titles quickly and prominently.

Publisher‑Direct Ebook Stores

Some traditional and digital‑first publishers run their own online bookshops. These can be interesting if you:

• Follow specific imprints, authors, or series.
• Want access to exclusive editions, pre‑order bonuses, or extended extras.
• Prefer buying directly from publishers when possible.

Publisher stores may:

• Offer multi‑format downloads (for example, EPUB and PDF) when allowed.
• Provide curated lists of titles organized by theme or genre.
• Occasionally run publisher‑specific promotions.

While they may not always be your primary source for bestsellers, they can be a useful second option when you want special editions or extra materials.

Independent and Niche Online Bookstores

These shops often:

• Focus on particular genres (for example, romance‑heavy catalogs, or science fiction and fantasy).
• Champion independent and self‑published authors.
• Offer community features such as reviews, forums, or reader groups.

For trending or bestselling books within a specific genre, niche bookstores sometimes highlight emerging hits earlier in their lifecycle. Many readers use them alongside a mainstream store to:

• Discover hidden gems.
• Support author communities or regions that matter to them.
• Access DRM‑light or DRM‑free ebooks where permitted.

Subscriptions vs. Buying: What Works Best for Bestsellers?

In 2025, readers are weighing subscription services against traditional buy‑to‑own purchases more carefully.

When Subscriptions Shine

Subscription reading platforms typically:

• Offer access to a rotating library of ebooks and sometimes audiobooks.
• Include a mix of backlist titles, midlist authors, and selected bestsellers.
• Encourage exploration of new authors and genres without paying per book.

They can be especially attractive if you:

• Read large quantities each month, including lesser‑known titles.
• Prefer to sample many books quickly, stopping when something doesn’t grab you.
• Enjoy genre fiction that is well represented in subscription catalogs.

However, not all current bestsellers are included in subscription plans, especially very recent releases from major publishers. Many platforms instead:

• Offer recent bestsellers as separate paid purchases.
• Rotate certain popular titles into the subscription catalog for limited times.

When Buying Individually Makes Sense

Buying ebooks individually remains common for:

• Brand‑new bestsellers and big releases.
• Books you know you’ll reread or reference long‑term.
• Titles that are unlikely to appear in subscription catalogs or may cycle in and out.

Many readers use a hybrid approach:

• Subscribe to a service for everyday reading and genre browsing.
• Purchase standout bestsellers and favorites separately for long‑term access.

Privacy, DRM, and Ownership: What to Know

As ebook platforms evolve, many readers are asking deeper questions about who controls their books and how their data is used.

Digital Rights Management (DRM)

Most major online bookstores apply some form of DRM to ebooks, which can:

• Tie the ebook to your account and authorized devices.
• Restrict casual copying or sharing of files.
• Sometimes limit which apps can open a purchased book.

This means that “owning” an ebook often means long‑term licensed access rather than full file control. Many readers accept this trade‑off for convenience, but it is useful to:

• Check a store’s policies on account access and device limits.
• Understand what happens to your library if you change ecosystems.

Some independent and niche stores offer DRM‑light or DRM‑free options in permitted contexts, which can provide more control over your copies.

Data and Personalization

Many ebook apps and bookstores use your reading data to:

• Recommend new titles.
• Show reading statistics, such as time spent reading or completion estimates.
• Adjust marketing and promotions.

Readers who value privacy may want to:

• Explore account settings to limit certain data uses where possible.
• Use platforms that allow some degree of local storage and offline use without constant data syncing.

How to Choose the Right App and Store for You

With so many possibilities, it helps to narrow the options based on your habits and priorities.

Step 1: Define Your Reading Style

Ask yourself:

• Do you mostly read brand‑new bestsellers or a mix of new and backlist?
• Are you a heavy reader (multiple books per week) or a casual reader?
• Do you prefer phone, tablet, e‑reader, or laptop?

Your answers point to what you need most: broad catalogs, budget options, or device‑specific features.

Step 2: Decide Your Budget Strategy

Consider how you want to pay:

• Primarily buy: Focus on large bookstores with competitive pricing and robust libraries.
• Primarily borrow: Explore library‑connected apps and check what your local library offers.
• Mix of both: Combine a subscription service for browsing with individual purchases for key bestsellers.

Step 3: Pick 2–3 Core Apps

A compact digital “reading toolkit” might include:

• One main ecosystem app for bestsellers and polished features.
• One library‑linked app for borrowing ebooks and audiobooks.
• Optionally, one flexible reader app for personal files or specialized formats.

This approach lets you adapt to different situations without constantly switching to new platforms.

Step 4: Test Drive Before Committing

Many apps and bookstores allow:

• Free sample chapters of ebooks.
• Trial periods for subscription services.
• Free classics and public domain titles to test the reading experience.

These options make it easy to try the user interface, font options, and general feel before you spend heavily in one ecosystem.

Quick Consumer Checklist ✅

Here is a concise, skimmable checklist to help you evaluate any ebook reader app or online bookstore:

• 📱 Device compatibility

  • Works on your main phone/tablet/computer?
  • Syncs across all devices you care about?

• 📚 Bestseller access

  • Carries most of the popular titles you see in stores or online conversations?
  • Clear search and category tools to find trending books?

• 🎨 Reading comfort

  • Adjustable fonts, themes, and spacing?
  • Comfortable night or dark mode for low‑light reading?

• 💳 Payment and pricing

  • Mix of one‑time purchases and optional subscriptions?
  • Fits your budget and reading volume?

• 📖 Borrowing and sharing

  • Library card integration available where you live?
  • Family sharing or limited lending options?

• 🔒 Control and privacy

  • Transparent account and device policies?
  • Clear explanations of what is stored, synced, and tracked?

Using this list while exploring apps can help you quickly rule out poor fits and focus on services that match your reading life.

Shopping Tips for Bestselling Ebooks in 2025

Bestsellers are easy to find, but there are still a few smart ways to shop.

Time Your Purchases

Some readers notice that:

• Certain platforms run frequent promotions on popular titles, such as weekend or holiday discounts.
• Backlist titles by bestselling authors sometimes drop in price when a new book in the series or by the same author releases.

If you are flexible on timing, watching campaigns and seasonal sales can help stretch your budget.

Use Sample Chapters Wisely

Many stores allow you to:

• Download the first chapter or a preview of an ebook.
• Test not only the writing style but also how the interface feels in your hand.

This can prevent the common experience of buying a hyped bestseller, then realizing it isn’t for you after two pages.

Consider Format Pairing

If you enjoy switching between reading and listening:

• Look for ecosystems where ebooks and audiobooks can be paired or used together.
• Some platforms allow seamless switching between the text and audio versions.

This can be especially helpful for long bestsellers or dense nonfiction where you might prefer audio during commutes and text at home.

Organize as You Go

Large digital libraries can become cluttered. Many readers find it useful to:

• Create collections or shelves (for example: “2025 Reads,” “Book Club Picks,” “To Read Soon”).
• Mark finished books clearly to keep your home screen focused on current reads.
• Use tags or notes when apps support them, especially if you highlight heavily.

This makes it easier to revisit favorites or track your reading over time.

Where Online Bookstores and Ebook Apps Are Heading Next

Looking beyond 2025, several trends are shaping how people discover and read bestselling books digitally.

More Integrated Ecosystems

Large platforms continue to:

• Connect reading with video, audio, and social features.
• Offer integrated recommendations based on your entire entertainment activity, not just books.

This can make discovery more fluid but also ties you more closely to specific brands.

Smarter Discovery Tools

Many apps and stores are experimenting with:

• Enhanced search filters for mood, pacing, and themes.
• Social‑style features that let you see what friends or communities are reading.
• More detailed category pages for bestsellers, beyond simple top‑10 lists.

These tools aim to help readers find the right book at the right moment, not just the most popular one.

Growing Attention to Accessibility

There is increasing emphasis on:

• Readable fonts and layout for various visual needs.
• Better screen reader integration.
• Features like synchronized text and audio for language learners or readers who benefit from multi‑sensory support.

For readers with specific accessibility requirements, checking these features can be just as important as checking catalog size.

Bringing It All Together

Digital reading in 2025 is less about chasing a single “best” ebook app or online bookstore and more about building a small, reliable reading ecosystem that fits your habits.

If you like staying up to date with bestselling books:

• Use a major online bookstore and its companion app as your central hub for new releases and big fiction or nonfiction.
• Add a library‑connected app to access popular titles without buying every book outright.
• Consider a flexible, format‑friendly reader app if you regularly download files from various sources or read PDFs and personal documents.

By focusing on catalog depth, reading comfort, pricing, device support, and privacy, you can choose platforms that make reading feel effortless rather than complicated. The goal is simple: spend less time managing apps and accounts, and more time lost in the stories and ideas you care about.