| Product | Ideal for | Price from | Free version | |
|---|---|---|---|---|
| Readers wanting a large store and sync | Free | Yes | Visit | |
| Apple users wanting integrated ebook reading | Free | Yes | Visit | |
| Readers wanting an open ecosystem and e-readers | Free | Yes | Visit | |
| Android and web readers wanting store plus uploads | Free | Yes | Visit | |
| Library card holders wanting free ebook borrowing | Free | Yes | Visit | |
| Heavy readers wanting a subscription library | See website | Free trial | Visit | |
| Android readers wanting a simple ebook reader | Free | Yes | Visit | |
| Android readers wanting customisable reading | Free | Yes | Visit |
We compared the leading best ebook app on fit, features and value, and the eight picks below cover different budgets and needs.

Ideal for: Readers wanting a large store and sync

Kindle fits readers who want the largest store and reliable sync. Its store and sync suit frequent readers. In daily use, large ebook store stands out as the practical reason to consider it, especially for readers whose main need matches its best use. The catch is ecosystem lock-in for purchases. Pricing is listed as Free with a free plan status of Yes. Before you commit, check the current plan details on the official site, including limits, trial terms and what happens when you cancel. For most readers in this group, this is worth a short trial before you commit, especially if the free tier or trial covers your main use.

Ideal for: Apple users wanting integrated ebook reading

Apple Books fits Apple users who read on iPhone, iPad or Mac. Its integration suits Apple households. In daily use, integrated Apple reading stands out as the practical reason to consider it, especially for readers whose main need matches its best use. The catch is Apple-only full features. Pricing is listed as Free with a free plan status of Yes. Before you commit, check the current plan details on the official site, including limits, trial terms and what happens when you cancel. Try it with a real task from your own work before you pay, since a demo rarely shows the limits you will meet daily.

Ideal for: Readers wanting an open ecosystem and e-readers

Kobo Books fits readers who want an open ecosystem and a dedicated reader. Its format support suits readers with varied files. In daily use, ebook store plus dedicated e-readers stands out as the practical reason to consider it, especially for readers whose main need matches its best use. The catch is store size variation by region. Pricing is listed as Free with a free plan status of Yes. Before you commit, check the current plan details on the official site, including limits, trial terms and what happens when you cancel. If this matches your main need, put it near the top of your shortlist and compare its total cost, not only its headline price.

Ideal for: Android and web readers wanting store plus uploads
Google Play Books fits Android and web readers who want store plus uploads. Its upload option suits readers with existing files. In daily use, ebook store stands out as the practical reason to consider it, especially for readers whose main need matches its best use. The catch is simpler reading features in places. Pricing is listed as Free with a free plan status of Yes. Before you commit, check the current plan details on the official site, including limits, trial terms and what happens when you cancel. Shortlist it if your budget and workflow match, and test the exact feature you will use most before you decide.

Ideal for: Library card holders wanting free ebook borrowing
Libby fits library card holders who want free ebooks. Its borrowing suits readers who do not need to own every book. In daily use, free ebook and audiobook borrowing from libraries stands out as the practical reason to consider it, especially for readers whose main need matches its best use. The catch is waits for popular titles and library dependence. Pricing is listed as Free with a free plan status of Yes. Before you commit, check the current plan details on the official site, including limits, trial terms and what happens when you cancel. For most readers in this group, this is worth a short trial before you commit, especially if the free tier or trial covers your main use.

Ideal for: Heavy readers wanting a subscription library
Scribd fits heavy readers who want a subscription library. Its breadth suits varied reading. In daily use, subscription ebooks, audiobooks and documents stands out as the practical reason to consider it, especially for readers whose main need matches its best use. The catch is catalogue limits on popular titles. Pricing varies by plan, so we list it as See website rather than guessing a figure that may not match your plan. Before you commit, check the current plan details on the official site, including limits, trial terms and what happens when you cancel. Try it with a real task from your own work before you pay, since a demo rarely shows the limits you will meet daily.

Ideal for: Android readers wanting a simple ebook reader
Aldiko fits Android readers who want a simple reader for their files. Its simplicity suits file-based reading. In daily use, simple ebook reading with library organisation stands out as the practical reason to consider it, especially for readers whose main need matches its best use. The catch is thin store features and limited iOS support. Pricing is listed as Free with a free plan status of Yes. Before you commit, check the current plan details on the official site, including limits, trial terms and what happens when you cancel. If this matches your main need, put it near the top of your shortlist and compare its total cost, not only its headline price.

Ideal for: Android readers wanting customisable reading
Moon+ Reader fits Android readers who want deep reading customisation. Its options suit readers who tune fonts and layout carefully. In daily use, highly customisable reading stands out as the practical reason to consider it, especially for readers whose main need matches its best use. The catch is Android-only support and basic store features. Pricing is listed as Free with a free plan status of Yes. Before you commit, check the current plan details on the official site, including limits, trial terms and what happens when you cancel. Shortlist it if your budget and workflow match, and test the exact feature you will use most before you decide.
We compared official feature pages, pricing pages, app store listings, privacy policies and public reviews for each option in this list. We checked whether each product still exists and works today, whether its homepage loads, and whether its price and free tier could be confirmed from the vendor. Where a price could not be confirmed, we wrote See website rather than guessing.
We favoured products that fit the topic closely, served different budgets and use cases, and had clear strengths and honest weaknesses. We did not claim hands-on testing we did not do, and we left out products that did not fit the topic, even when they were popular in a nearby category.
Start with where your books already live. A Kindle library works best in the Kindle app, while Apple purchases work best in Apple Books. Switching ecosystems means rebuying or converting books, so choose the app that matches your existing library where possible.
Check reading features that matter to you: fonts, margins, night mode, dictionary, notes and sync across phone, tablet and e-reader. A small difference in typography or sync can matter over hundreds of hours of reading. Also check offline downloads for travel.
Decide between buying, borrowing and subscribing. Libby offers free library borrowing, Scribd offers a subscription, and store apps offer purchases. A mix often works best: buy favourites, borrow the rest and subscribe only if you read enough to repay it.
Kindle is a strong general pick, while Apple Books suits Apple users and Kobo Books suits readers who want an open ecosystem. Google Play Books suits Android and web readers.
Apple Books and Kindle both work well on iPhone, with Apple Books integrated into Apple devices and Kindle offering a larger store and sync across platforms.
Libby offers free library borrowing for card holders, while Google Play Books and Kindle offer free public domain titles. Check your local library for Libby availability.
Kindle books are tied to Amazon's ecosystem and read best in Kindle apps and devices. Some files can be converted, but store purchases usually stay in their ecosystem.
Scribd suits heavy readers who want a subscription library of ebooks and audiobooks, but catalogue limits and throttling on popular titles can affect value. Trial it with your reading list first.