Comparison

bREADER Cloud vs Mathema Ebook Reader

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

Head to head
About

bREADER Cloud

This cloud-based e-book reader allows you to store and access your EPUB and PDF files from any device. It offers full-text search within your cloud-stored books and integrates with academic digital library services.

Highlights
  • Cloud storage for e-books
  • Full-text search
  • Access from any device
  • Integration with KinoDen academic library
  • 100GB free cloud storage
Features
Read full description

bREADER Cloudはクラウド型の電子書籍リーダーです。 EPUBやPDF等の電子書籍ファイルをクラウドストレージに保存し、場所を選ばずに「いつでも」「どこでも」読書できる環境を提供します。 ●クラウドストレージ連携ならではの機能 クラウドストレージ上に保存した電子書籍を全文検索することができます。対象書籍をダウンロードしていない端末でも素早く中身を検索することができます。 ●外部サービスとの連携 紀伊國屋書店が提供する学術電子図書館サービス「KinoDen(キノデン) Kinokuniya Digital Library」と連携しています。KinoDen電子図書館の利用者の皆様はコンテンツをbREADER Cloudに登録すれば、本棚から簡単に閲覧できるようになります。 KinoDenはWebブラウザでご利用ください。また、ご利用するには図書館へのアクセス権が別途必要です。 ●クラウドストレージの無料枠100GB ストレージ100GByte、月間転送量5GByteが無料で利用可能です。 当面は課金サービス及び広告提示はありません。 以下は今後のアップデートで実装予定の機能です。 ・画像アーカイブ形式のコンテンツへの対応

About

Mathema Ebook Reader

Learn high school and university math and physics with interactive ebooks and video explanations. This app is designed for students seeking supplementary educational resources.

Highlights
  • High school math learning
  • University math learning
  • University physics learning
  • Ebook format
  • Video explanations
Features
Read full description

スマートフォン、タブレットを使用した高校数学、大学数学・物理学を電子書籍と解説付き動画で学習できます。

Screenshots

bREADER Cloud3 screens
Mathema Ebook Reader4 screens

Verdict

The call

The clearest difference is update cadence: Mathema Ebook Reader at every 3 weeks against bREADER Cloud's every 4 months. On price, ads, in-app purchases and monetization model 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

bREADER Cloud ships an update every 4 months, Mathema Ebook Reader every 3 weeks. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

Scorecard1 real difference · 9 level
bREADER Cloud versus Mathema Ebook Reader: the parameters behind the verdict, then further details
ParameterbREADER CloudMathema Ebook Reader
PriceFreeFree
Rating—2.0 (1 ratings) — better
Positive reviews57.1% of reviews—
Number of ratings—1 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.012.0 — better
Further details — not scored
Size89 MB29 MB
Age rating12+4+
DeveloperINFOCITY, Inc.MASEMA, K.K.

Customer experience

bREADER Cloud

Written reviews21 reviews
Positive57.1%
Neutral9.5%
Negative33.3%

Mathema Ebook Reader

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

bREADER Cloud

No in-app purchases

None

Mathema Ebook Reader

No in-app purchases

Questions

Is bREADER Cloud free?
bREADER Cloud is free to download, with no in-app purchases.
Is Mathema Ebook Reader free?
Mathema Ebook Reader is free to download, with no in-app purchases.
Do bREADER Cloud or Mathema Ebook Reader have ads?
Neither bREADER Cloud nor Mathema Ebook Reader shows ads.
Which is updated more often, bREADER Cloud or Mathema Ebook Reader?
bREADER Cloud ships an update every 4 months, and Mathema Ebook Reader every 3 weeks. Most recently, bREADER Cloud was updated on October 9, 2026 and Mathema Ebook Reader on October 1, 2026.

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