Comparison

KaLib vs Red In Bed

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

Head to head
About

KaLib

Features
Read full description

KaLib (Kyorinsya Academic Library)は、学術に特化した電子書籍サービスです。 KaLibのStoreサイトでは学協会や出版社の垣根を越えて、論文/ガイドライン/学術専門書/テキストなどの学術コンテンツを専門に扱っております。 KaLibリーダーはKaLib Storeサイトへ接続し学術書を読むために便利な機能を提供します。 【注意】 コンテンツによっては所属されている学会の認証が必要となるものがございます。また、所属されている学会の会員であっても課金が発生するコンテンツも含まれますのでご注意ください。 -主な機能- (1)十字スクロール機能:論文は一般書籍とは文章構造が異なります。そのためKaLibリーダーでは論文を読む時には縦スクロールし、他の論文へ移動するには横スクロールすることで論文間を自由に移動することが可能です。 (2)メモ付き付箋共有機能:KaLibリーダーには共有登録したメンバー間で、電子書籍につけた付箋やコメントが共有することが可能です。 (3)TwitterやFacebookとのSNS接続機能:気になった論文についてTwitterでさりげなく情報発信してみたり、Facebook上でおもいっきり議論することが可能です。

About

Red In Bed

This interactive storybook teaches children about colors and music. It follows the rainbow colors as they paint the world while Red is sick in bed. Each color has a unique musical note that plays when tapped, allowing for playful musical exploration.

Highlights
  • Interactive storybook
  • Teaches colors
  • Introduces musical notes
  • Tap-to-play interactivity
  • Gentle narrative engagement
  • Colorful illustrations
Features
Read full description

"This excellent children's app teaches kids about the colours of the rainbow. It tells the tale of the colours painting the world, apart from Red (who's ill in bed). Each colour gets its own musical note, too – ideal for tap-happy children." - http://www.guardian.co.uk/technology/appsblog/2013/feb/15/best-iphone-ipad-apps-15feb13 5/5 stars "The story along with the illustrations would have been sufficient to earn our recommendation, but the interactivity has been perfectly fit into context in this beautiful and very special app. Worth every cent and much more." - http://www.apps4kids.net "This simple yet substantive story gives toddlers a valuable primer on color and music." - http://www.kirkusreviews.com "Red in Bed is a delightful app. Having read it several times already, I think it may be one of my top five storybook apps for toddlers." - Camila Amanda, Geeks with Juniors 5/5 stars "fun and educational!" - Nikki, theiphonemom.com "The app is very simple to use: when your child taps on a colour, it jumps up and sounds a note – and you can ‘play’ more than one colour at a time so it’s great fun for little fingers." - http://www.appsplayground.com --------------------------------- Red In Bed is an original story about the colors of the rainbow who on this particular day cover for Red who stays in bed, sick. It is written, illustrated and developed by Josh On, an interaction designer who wanted to keep the simplicity of a classic children’s book while adding a layer of gentle interactivity to help involve the child in the narrative directly. Each color has a note which sounds on a tap, together they can be played like a musical instrument. This interactivity is aimed at pulling the child into the story. As each color goes to saturate objects of the world in their hue, the child reader can touch each object and it will fill with that color and play the color’s note.

Screenshots

KaLib4 screens
Red In Bed4 screens

Verdict

The call

The clearest difference is iOS requirement: Red In Bed at 5.1.1 against KaLib's 11.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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.

UpkeepUpdate frequency

KaLib ships an update every 2 months, Red In Bed every 3 months. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard1 real difference · 9 level
KaLib versus Red In Bed: the parameters behind the verdict, then further details
ParameterKaLibRed In Bed
PriceFreeFree
Rating—5.0 (11 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—11 — better
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.05.1.1 — better
Further details — not scored
Size25 MB45 MB
Age rating4+4+
DeveloperKyorinsha Co.,LtdPop Pop Pop LLC

In-app purchases

None

KaLib

No in-app purchases

None

Red In Bed

No in-app purchases

Questions

Is KaLib free?
KaLib is free to download, with no in-app purchases.
Is Red In Bed free?
Red In Bed is free to download, with no in-app purchases.
Do KaLib or Red In Bed have ads?
Neither KaLib nor Red In Bed shows ads.
Which is updated more often, KaLib or Red In Bed?
KaLib ships an update every 2 months, and Red In Bed every 3 months. Most recently, KaLib was updated on October 29, 2026 and Red In Bed on October 24, 2026.

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