Comparison

TumuBook vs Book Keep

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

Head to head
About

TumuBook

Features
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The books they grew up with. TumuBook is a reading log for parents and kids. Keep every book your child reads, with the date and how old they were. "The picture book they asked for again and again as a baby." "The book they practised reading with in first grade." Books carry a picture of who your child was at the time. Note what they read, when, and how old they were, and the record becomes a memory in itself. One book finished, and what next? With no time to look, or no quick trip to the library or bookshop, that eagerness to keep reading can quietly fade. TumuBook lays out what might come next from the books they've read: "if they loved this one, here are a few more." A natural moment to ask, "Want to try this one?" SECONDS TO LOG. YOURS TO KEEP. - Scan the barcode to add a book - The date and your child's age are saved automatically - Add a note if you like - Browse each shelf by age or by month A SHELF FOR EACH CHILD - A separate shelf for every child - Whatever the age gap, all in one app MORE TIME WITH BOOKS - Picks like "Because you read…" and "More by the same author" appear on the Home, grown from the books they've read - Save the ones to read next, and check the list on your next trip to the library or bookshop SERIES AND NEW RELEASES - See every volume of a series, with a tick on the ones they've read - The next volume shows up on the Home - We keep an eye on new releases in the series they read WORKS ON IPHONE AND IPAD Made for parents who want to: - keep the books their child reads as memories - log every sibling's reading in one place - spend less time hunting for the next book - keep track of library books as well as their own

About

Book Keep

Features
Read full description

今読んでる本、すでに読んだ本、これから読みたい本すべてをスキャンして記録しよう! あなたの読書習慣を可視化できます!もっともっと本の世界に浸かりましょう!

Screenshots

TumuBook4 screens
Book Keep3 screens

Verdict

The call

TumuBook and Book Keep are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
TumuBook versus Book Keep: the parameters behind the verdict, then further details
ParameterTumuBookBook Keep
PriceFreeFree
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad — betteriPhone
Requires iOS18.017.6 — better
Further details — not scored
Size5 MB2 MB
Age rating4+4+
DeveloperTomoko OkadaSota Mitsumori

In-app purchases

None

TumuBook

No in-app purchases

None

Book Keep

No in-app purchases

Questions

Is TumuBook free?
TumuBook is free to download, with no in-app purchases.
Is Book Keep free?
Book Keep is free to download, with no in-app purchases.
Do TumuBook or Book Keep have ads?
Neither TumuBook nor Book Keep shows ads.

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