World of Books App

Review by eFreeware

Buying secondhand books online usually means juggling a marketplace, a wishlist and a checkout that asks for more patience than the books themselves. The World of Books app is an attempt to put that whole loop in one place: browsing, buying and passing books on, from a company that deals in preloved copies.

It comes from World of Books, the seller behind the app of the same name, and it sits in the Books & Reference category on Google Play. It is free to download, carries no ads, and lists no in-app purchases. The store reports more than 100,000 installs and a 4.2 average from 666 ratings, which is a reasonable signal for an app released in August 2025.

What follows is a look at what the app is built to do, what it asks of you, and which readers are most likely to get value from it.

A storefront built around secondhand copies

The core of the app is a catalog of new and used books that you browse and buy directly. The developer frames the whole thing around giving books a second life, and that framing shapes what you see: this is a shop for physical reading copies rather than a library, a reader or a place to store ebooks.

Orders come with free delivery to your door, which removes one of the small frictions of buying single paperbacks online. If you tend to buy one book at a time rather than in bulk, that detail matters more than any loyalty scheme.

Because the catalog mixes new and used stock, condition and price will vary from copy to copy, and the app is designed for people who are comfortable with that. If you want a pristine first edition or a specific printing, a general secondhand shop is a different proposition from a specialist dealer.

Search and filters for narrowing a big catalog

The developer describes advanced search alongside filters for pinpointing what you are in the mood for. In practice, that is the part of a book app that decides whether browsing feels like a pleasure or a chore: a large secondhand inventory is only useful if you can cut it down by author, title, genre or format.

Smooth scrolling is mentioned as part of the browsing experience, which suggests the app is meant to be flicked through rather than searched only when you already know the title you want. That suits readers who enjoy stumbling onto something unexpected in a bargain bin.

I would treat the search tools as the feature to judge first. A bookshop app lives or dies on whether you can get from a vague idea, say a genre you fancy this month, to a shortlist you would actually pay for.

Offers, discounts and the Buy 3, Get Another Free deal

The app carries exclusive offers and discounts, including a Buy 3, Get Another Free promotion among the regular deals. That kind of offer rewards the reader who already buys in stacks: three titles plus a fourth at no cost changes the arithmetic on a monthly book budget.

The developer also promises prices that are easy on the wallet, which is the standard pitch for a used-book seller and the reason many people shop this way in the first place. Cheap copies are the point, not a side effect.

Where this becomes a trade-off is volume. A multibuy offer is only a saving if you were going to read four books anyway; otherwise it is a nudge to buy more than you planned. Readers who pick up one book every few weeks will get less out of the promotion than those who stock up.

Checkout and payment options

Checkout accepts several payment methods, including major wallets and cards, so most buyers can pay the way they already do without typing in card details. Checkout is quick and unfussy, and offering several wallets is the usual way to get there.

That breadth is worth something on a phone, where typing a long card number on a small keyboard is the least enjoyable part of any purchase. If you already keep a wallet set up on your device, the path from finding a book to owning it should be short.

What the app asks of you

The main requirement is simply that you want physical books. The app is a shop for paper copies: browsing a catalog, ordering with delivery, paying at checkout. Someone whose reading happens on a screen, or who wants to borrow rather than own, is looking at a different category of app.

Buying secondhand also means accepting that stock is what it is. A used-book catalog is deep but not guaranteed; a title you want may be available in one condition today and a different one next month. The app is built to make that hunt easier, not to make every book permanently available.

If you prefer to buy a specific book at a fixed price without thinking about bundles, the deal-driven framing will matter less to you.

Readers who will get the most from it

This is a natural fit for people who read a lot of paperbacks and do not mind them being preloved. If your shelf fills up faster than your budget would like, a shop that specializes in secondhand copies with free delivery is aimed at exactly that problem.

It also suits the browser rather than the hunter: someone happy to scroll a large catalog, apply a few filters and see what turns up, then take advantage of a multibuy offer when several titles catch their eye. The search and filter tools exist to serve that habit.

For readers who want a single specific edition in mint condition, or who read almost entirely on a phone or e-reader, the app's secondhand, physical-copy focus will not line up with how they buy books. Everyone else who enjoys a bargain and a full shelf is the audience here.

A worthwhile install for secondhand book buyers

It is free, ad-free and has no in-app purchases, and the 4.2 average from 666 ratings suggests buyers are broadly satisfied.

The trade-offs are the ones that come with the territory. You are shopping secondhand stock, so availability and condition vary, and the promotional structure rewards buying several books at a time. Neither is a flaw in the app; both are part of what a used-book shop is.

If you buy paper books regularly and like the idea of giving them a second life, this is an easy install. If your reading is digital or you only ever want one specific new copy, the app's focus will not match your habits.