SMSReader Downloads & RevenueSMSReader - PDF/EPUB Reader · App Store
SMSReader - PDF Reader
17 days old
SMSReader - PDF/EPUB Reader is #64 in Productivity Paid in Japan and charting in 1 of 30 countries we track.
Updated 8 Nov 2026 · rankings refresh through the day
DeveloperKotatsu RIN
CategoryProductivity
Price9.99 USD
Released
Rating★ 0.0 (0)
Version0.8.0
Age rating4+
First seen by us
23 Oct 2026
23 Oct 2026SMSReader - PDF/EPUB Reader update history & changes
Last change · 23 events since 22 Oct 2026Full timeline ↓📈Dropped out of every chart we track✏️Description updated📦Updated to version 0.7.0💰Price rise✏️New iPad screenshots📦Updated to version 0.6.0📈Entered the top 100🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 23 events
- 📈SMSReader - PDF/EPUB Reader dropped out of every chart we trackLast seen 3 Nov
- ✏️SMSReader - PDF/EPUB Reader: app got bigger14 MB → 15 MB (+14%)
- ✏️SMSReader - PDF/EPUB Reader: description updated· KR, JP
- 📦SMSReader - PDF/EPUB Reader updated to version 0.7.0読み上げ
・外部の音声合成サービスの声でも読み上げ（ご自身の API キーで利用）。
・読み上げツールバーの改善
EPUB
・縦書きの本の目次を縦書きで表示できます（設定 -> 読書 -> 目次）。
・レイアウト処理の改善。
書庫
・共有シートで取り込んだら「SMSReaderで開く」ですぐに開けます。
・ファイル名の文字化けの修復を支援。
そのほか
・多くの不具合を修正して、動作を安定させました。 - 💰SMSReader - PDF/EPUB Reader: price rise800.00 JPY → 1500.00 JPY · JP
- ✏️SMSReader - PDF/EPUB Reader: new iPad screenshots· JP
- ✏️SMSReader - PDF/EPUB Reader: new screenshots7 screenshots (was 7) · JP
- 📦SMSReader - PDF/EPUB Reader updated to version 0.6.0EPUB
・デイジー（DAISY）図書に対応。録音された朗読のある本は、その声で読み上げます。
・EPUB規格への適合を前進させました。
・EPUB Annotations 形式で書き出し、読み込みを実装してみました。
そのほか
・表紙の取得処理を改善して速くなりました。
・不具合を修正して、動作を安定させました。 - 📦SMSReader - PDF/EPUB Reader: now updating weekly4 updates in 30 days, after a quiet two months
- 📈SMSReader - PDF/EPUB Reader entered the top 100Top Paid · Productivity · KR
- 📈SMSReader - PDF/EPUB Reader charting in a new countrySouth Korea
- ✏️SMSReader - PDF/EPUB Reader: app got bigger11 MB → 14 MB (+26%)
- ✏️SMSReader - PDF/EPUB Reader: description updated· JP
- ✏️SMSReader - PDF/EPUB Reader: new iPad screenshots· JP
- ✏️SMSReader - PDF/EPUB Reader: new screenshots7 screenshots (was 7) · JP
- ✏️SMSReader - PDF/EPUB Reader: renamedSMSReader - PDFリーダー → SMSReader - PDF/EPUBリーダー · JP
- 📦SMSReader - PDF/EPUB Reader updated to version 0.5.0EPUB に対応
・リフロー型と固定レイアウト型の EPUB を、PDF と同じようにめくって読めます。縦書き・ルビ・縦中横・圏点にも対応しています。
・文字の大きさ、書体、余白、行間、地色を本ごとに選べます。
・目次、リンク、検索、文字の選択、読み上げ、翻訳も、PDF と同じように使えます。
iCloud で同期（設定でオンにします）
・読書位置、しおり、書き込み、棚、表紙、登録した読み、本ごとの文字の設定を、同じ Apple Account の端末同士で同期します。
書庫の場所
・本のファイルを、この端末のほか、iCloud Drive や、Dropbox などファイルアプリで開けるフォルダに置けます。
そのほか
・設定の項目を、分野ごとの画面に整理しました。
・不具合を修正して、動作を安定させました。… more - ✏️SMSReader - PDF/EPUB Reader: description updated· JP
- 📦SMSReader - PDF/EPUB Reader updated to version 0.3.0連結ブック
・書庫で選んだ何冊かの本をつないで、1冊の本として続けて読めます。
・ページは本をまたいでめくれ、検索・読み上げ・書込み・翻訳も本をまたいで使えます。元の本は書庫にそのまま残ります。
・連結ブックの名前や本の順番を変えたり、本を足したり取り除いたりできます。フォルダにも入れられます。
読み上げ
・読み上げ中にページを前後に移動しても、読み上げている位置はそのままです。読み上げのバーから、読み上げているページにすぐ戻れます。
・AIで確かめた漢字の読みを、段落ごとに調べ直したり、設定からすべて消したりできます。
・本の中で付いているふりがなを、より多くの語に使うようにしました。
・AIで漢字の読みを確かめるとき、確かめる語を選べるようになりました。
そのほか
・不具合を直し、動作を安定させました。… more - 📈SMSReader - PDF/EPUB Reader entered the top 10Top Paid · Productivity · JP
- 🆕SMSReader - PDF/EPUB Reader first spotted by AppInsider#158 in Top Paid · All Apps · Japan
- 📦SMSReader - PDF/EPUB Reader version 0.2.0LIBRARY
• A new Manual order: drag a book onto another to put it in its place.
• Each window remembers how the library is shown and sorted.
READ ALOUD (Improvements for Japanese)
• Kanji without readings are now read as the sentence means them. A word given a reading (ruby) once in a book is read the same way wherever it appears.
• Turn it on in Settings to ask an online AI service how words are read, for even more accurate reading (needs your own API key).
• Heard a word read wrong? Tap "Correct Reading" on the reading bar to register the right reading on the spot. Works with VoiceOver too.
AND MORE
• Bug fixes and better stability.… more - 🆕SMSReader - PDF/EPUB Reader released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
0.0 ★
0 ratings
Measured
Best rank now
#64
Productivity PaidMeasured
New ratings a week
1.2
App Store, 4-week average
Measured
SMSReader - PDF/EPUB Reader on the App Store
App details
App ID
6822021627
Publisher
Kotatsu RIN
On the store since
Oct 2026
Under a year
Minimum OS
iOS 18.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
16 MB
Also listed in
Books
App privacy Measured
SMSReader - PDF/EPUB Reader declares it collects no data at all — the rarest and most private label on the App Store.
Declared label
Data Not Collected
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | ProductivityPaid | #64 |
Apps near SMSReader - PDF/EPUB Reader on the chart
Productivity Paid, around #64.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
1.2
4-week average
Lifetime rating
4.5★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
57/100
faster than 62% of Productivity apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
What users say about SMSReader - PDF/EPUB Reader
From recent reviews.
About SMSReader - PDF/EPUB Reader
SMSReader is a reader for digital books and documents, built to be fast and comfortable. Even in a book of thousands of pages, the next page appears the moment you tap the edge, and holding the edge flips through pages at speed.
BUILT FOR THE LATEST DEVICES
• A comfortable PDF viewer on iPad and iPhone, and on iPhone Duo too
• Extensive accessibility support (VoiceOver and more)
FAST PAGE TURNING
• Tap the left or right edge to turn the page instantly, or choose a slide animation
• Hold an edge to flip continuously (7 speeds, from 6 to 60 pages a second)
• Flick, drag the slider, or type a page number to move
• Pinch in for an overview of the pages
EASY TO READ
• Home View: keep the zoomed area and move it along one view at a time. Self-scanned books and two-column pages become easy to read
• Right to left (vertical Japanese), left to right, or top to bottom. Two-page spreads and a cover shown alone are set automatically from the PDF
• Tall pages fit the screen's width, handy for web page screenshots
EPUB
• Read reflowable and fixed-layout EPUBs, turning pages as fast as with PDFs
• Vertical Japanese, ruby, tate-chu-yoko and emphasis marks, in the book's own fonts if you like
• Choose the text size, font, margins, line spacing and paper for each book
• Press and hold an illustration to see it over the whole screen, and pinch to zoom. Pictures larger than the page are fitted to it
• Vertical books can show their contents vertically
LISTEN AND SPEAK
• Read Aloud: reads the text, leaving out running heads and page numbers, and follows the ruby in Japanese. The word being read is highlighted; start from any word, or move a paragraph back or forward
• Turn Pages by Voice: say "next", "previous" or "page 12". Speech is recognized on the device
• Or hear an online speech service's voice, with your own API key: ElevenLabs API / Aivis Cloud API / Amazon Polly
• Siri and Shortcuts: "Continue reading in SMSReader", "Read aloud in SMSReader" and more
SEARCH AND ANNOTATE
• Search the text of a book or of your whole library, without missing words split across lines
• Select text to copy, look up or share, including vertical text and ruby
• Pages without text, such as scanned books, are read on the device and can be searched, selected, translated and read aloud
• Annotate and highlight pages with Apple Pencil or your finger (iPadOS 26 or later). The file itself is never changed
TRANSLATION AND SUMMARIES
• Open the translation panel beside the page to see a translation of each paragraph. Tap a paragraph to match the original and the translation
• For translation and summaries, use Apple Translate or Apple Intelligence (on device)
• Or an online translation or AI service, with your own API key: Claude / DeepL / PLaMo / OpenAI-compatible
BOOKSHELF
• Organize your library in folders, and folders within folders
• Keep the library on this device, in iCloud Drive, or in a folder the Files app can open, such as Dropbox. Books in the cloud are downloaded when yo
BUILT FOR THE LATEST DEVICES
• A comfortable PDF viewer on iPad and iPhone, and on iPhone Duo too
• Extensive accessibility support (VoiceOver and more)
FAST PAGE TURNING
• Tap the left or right edge to turn the page instantly, or choose a slide animation
• Hold an edge to flip continuously (7 speeds, from 6 to 60 pages a second)
• Flick, drag the slider, or type a page number to move
• Pinch in for an overview of the pages
EASY TO READ
• Home View: keep the zoomed area and move it along one view at a time. Self-scanned books and two-column pages become easy to read
• Right to left (vertical Japanese), left to right, or top to bottom. Two-page spreads and a cover shown alone are set automatically from the PDF
• Tall pages fit the screen's width, handy for web page screenshots
EPUB
• Read reflowable and fixed-layout EPUBs, turning pages as fast as with PDFs
• Vertical Japanese, ruby, tate-chu-yoko and emphasis marks, in the book's own fonts if you like
• Choose the text size, font, margins, line spacing and paper for each book
• Press and hold an illustration to see it over the whole screen, and pinch to zoom. Pictures larger than the page are fitted to it
• Vertical books can show their contents vertically
LISTEN AND SPEAK
• Read Aloud: reads the text, leaving out running heads and page numbers, and follows the ruby in Japanese. The word being read is highlighted; start from any word, or move a paragraph back or forward
• Turn Pages by Voice: say "next", "previous" or "page 12". Speech is recognized on the device
• Or hear an online speech service's voice, with your own API key: ElevenLabs API / Aivis Cloud API / Amazon Polly
• Siri and Shortcuts: "Continue reading in SMSReader", "Read aloud in SMSReader" and more
SEARCH AND ANNOTATE
• Search the text of a book or of your whole library, without missing words split across lines
• Select text to copy, look up or share, including vertical text and ruby
• Pages without text, such as scanned books, are read on the device and can be searched, selected, translated and read aloud
• Annotate and highlight pages with Apple Pencil or your finger (iPadOS 26 or later). The file itself is never changed
TRANSLATION AND SUMMARIES
• Open the translation panel beside the page to see a translation of each paragraph. Tap a paragraph to match the original and the translation
• For translation and summaries, use Apple Translate or Apple Intelligence (on device)
• Or an online translation or AI service, with your own API key: Claude / DeepL / PLaMo / OpenAI-compatible
BOOKSHELF
• Organize your library in folders, and folders within folders
• Keep the library on this device, in iCloud Drive, or in a folder the Files app can open, such as Dropbox. Books in the cloud are downloaded when yo
Latest updates
0.8.0
READ ALOUD
• More online speech services to choose from. With ElevenLabs, Japanese voices from its Voice Library can be chosen too.
• Reading in an online voice no longer waits at the turn of a page.
• While reading aloud, a tap where the bar was brings the bars back.
EPUB
• Join several EPUBs to read them on as one book, in the order you pick them in the library.
• "Show Ruby" can be turned off (reader settings > Layout and Direction).
• Drop caps, body line spacing in Western books, the space around figures and captions and more are set nearer to what the book asks.
LIBRARY
• Move between folders by voice ("open the ... folder", "go up", "top folder" and more).
• "Open in SMSReader" from the share sheet switches to the imported book even while another is being read.
• Sheets that only close now close with "×".
SYNC
• Where you read on another device is told by that device's name, such as "iPad mini".
AND MORE
• Choose the color of links (Settings > Reading > Links).
• Fixed a crash after reading a scanned book for a long time.
• Bug fixes and better stability.
0.7.0
読み上げ
・外部の音声合成サービスの声でも読み上げ（ご自身の API キーで利用）。
・読み上げツールバーの改善
EPUB
・縦書きの本の目次を縦書きで表示できます（設定 -> 読書 -> 目次）。
・レイアウト処理の改善。
書庫
・共有シートで取り込んだら「SMSReaderで開く」ですぐに開けます。
・ファイル名の文字化けの修復を支援。
そのほか
・多くの不具合を修正して、動作を安定させました。
0.6.0
EPUB
・デイジー（DAISY）図書に対応。録音された朗読のある本は、その声で読み上げます。
・EPUB規格への適合を前進させました。
・EPUB Annotations 形式で書き出し、読み込みを実装してみました。
そのほか
・表紙の取得処理を改善して速くなりました。
・不具合を修正して、動作を安定させました。
Store changes
What SMSReader - PDF/EPUB Reader changed on its store page: name, icon, screenshots, price, size, languages, requirements.
App got bigger
14 MB → 15 MB (+14%)
Description updated 
Price rise
800.00 JPY → 1500.00 JPY
