For the love of reading

Every book you’ve finished. In order.

Crestora is a free iPhone app for keeping track of the books you’ve read, and ranking them. Pick between two at a time, and the ones that stayed with you rise to the top.

Download on theApp Store See how it works

Free on iPhone.

Mina’s book rankings in Crestora on an iPhone, its top three on a podium, in front of a real pile of books

See it in 14 seconds

That wobbly pile, finally in order.

Every book you’ve finished, in one library. Then the fun part: deciding which ones mattered most.

A library by year. See what you read and when, at a glance.
Two books, your call. Pick the one that stayed with you.
A shelf you can recommend from. Your top ten, and a tier for every book.

Film credits

Music: ‘Ashes of a Fallen Year’ by Scott Buckley, CC BY 4.0. Example collection; screens rebuilt from the current app.

How it works

A reading log that knows your favourites.

Most reading trackers stop at a list. Crestora keeps the list, then helps you find out what you really loved.

Add the books you’ve read.
Search for a book, add it with the date you finished it, and it joins your library, grouped by year. It’s a reading log that takes seconds to keep.
Two books. Your call.
Crestora asks which of two books stayed with you more. Tap one and the order updates. Too tough? Call it a draw. Fuzzy memory? Skip it.
Every book, a tier.
Your top ten forms with a podium for the top three, and every ranked book falls into a tier, from Essential reading down to Not for me.

Try it

Your call.

Six much-loved books, five quick choices. Tap the one that stayed with you, and see your top three.

Tap the one that stayed with you.

1. SSEssential reading
2. SExtraordinary
3. A+Outstanding
4. AExcellent
5. BStrong
6. CSolid
7. DUneven
8. EWeak
9. FNot for me
Crestora’s nine book tiers, top to bottom.
Your book tier list
From Essential reading to Not for me.
As you compare, every book earns a score and a tier. It’s a book tier list that builds itself: the ones you’d press into a friend’s hands at the top, the ones that weren’t for you at the bottom, and room in the middle for books you liked about equally.
How to rank the books you’ve read
Your library
Every book, by the year you read it.
Scroll back through your reading life year by year. It’s the reading log you meant to keep, without the spreadsheet.
How to keep a reading log
Across genres
Fantasy against memoir? Easy.
Star ratings make every genre feel incomparable. One question, asked of two books at a time, cuts straight through: which one do you still think about?
Draws and skips
No forced answers.
Two books you love equally can stay equal. A book you barely remember can wait. Your ranking only records the choices you’re sure of.
Always changing
Your list grows with you.
Finish something brilliant and it finds its place after a few comparisons, without reshuffling everything by hand.

Made for

Readers, all kinds.

01 · The book clubBring your top three.
When someone asks for a recommendation, you’ll have one ready, in order, with a reason.
02 · The reading challengeFifty books. Which was best?
Rank as you read and your year’s favourites are sorted by the time December comes.
03 · The rereaderThe ones that last.
Some books keep their place for decades. Crestora shows you which ones, and which have quietly slipped.

Reading guides

Questions readers ask us.

Free, practical guides you can use with a notebook, a spreadsheet or Crestora.

Questions

Book ranking, answered.

How do I rank the books I’ve read?

Pick a question your ranking should answer, such as “Which books have stayed with me most?”, then compare books two at a time. In Crestora, each choice updates both books’ scores, so your top ten and tiers take shape without comparing every pair.

Can Crestora keep track of books I’ve read?

Yes. Add books as you finish them and Crestora keeps your library grouped by the year you read them, next to your ranking. If you’d rather start on paper, our reading log guide has a free template.

How do you compare books from different genres?

Use the same question every time. A thriller and a memoir are hard to compare on craft, but easy to compare on which one you still think about. If two books really feel equal, call it a draw.

What are Crestora’s book tiers?

Ranked books fall into nine tiers by score: SS Essential reading, S Extraordinary, A+ Outstanding, A Excellent, B Strong, C Solid, D Uneven, E Weak and F Not for me. Books you haven’t compared yet wait outside the tiers.