Comparison

SideBooks vs マチイロ

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

Head to head
About

SideBooks

This app offers a high-performance PDF and comic viewer with realistic paper-turning animations. It supports various viewing directions, enhanced bookshelf management, and secure password protection for your documents. Easily import files from multiple sources and enjoy a customizable reading experience.

Highlights
  • Realistic paper curl animation
  • Multiple viewing directions
  • Enhanced bookshelf management
  • Password protection
  • Dropbox and iTunes file import
  • Supports PDF, ZIP, CBZ, RAR, CBR
Features
Read full description

SideBooks is a high performance, high speed PDF viewer that allows you to enjoy reading with the feel of actual paper. =Features= Curl animation that simulates the actual turning of paper pages has been added to the standard page slide function. Supports viewing from 3 directions, documents that open left to right, right to left and vertically. It provides the optimal environment for viewing any book. All zoom rates have been optimized providing high speed, dynamic screen display. An infinite hierarchy of folders can be created, moved, deleted, renamed, etc. using the enhanced bookshelf management function. Real visual bookshelf function that corresponds to back cover style display. Files can be imported by 3 methods, Network transfer through Dropbox, USB transfer through iTunes and direct transfer from other applications. Books can be protected so others cannot view them by using the password protected locking function. This is a universal application that operates on the iPhone, iPod Touch and iPad. =Functions= Overall: *Brightness Adjustment *Screen rotates to match the orientation of the device *Screen Rotation Lock *Password Protected Start-up Lock Viewer: *Support PDF,ZIP,CBZ,RAR and CBR format *Page Turning: Choose from slide or curl *Viewing Directions: Choose from opening left to right / right to left / vertically *Page Spacing: Choose form wide / narrow / none *Facing Pages: Choose the pair of facing pages by setting the cover to on or off *Trim function within the range of page display *Cache pre-read function for the previous and next pages *Set the display for each book and remember the page number of the last page read *Text search function (list display type) *Contents function (also supports hierarchy type) *Bookmark function (with editable memos) *Edit handwritten notes *Send to other applications (Open-In) *Send by email *Printing function (Air Print) *In-page link function *Link to outside URL function (built-in browser / Safari / Printing) *Display / Don't Display link buttons *Page turning function using tap or swipe *Expansion / Contraction function using pinch and double tap (1-1024x zoom) *Viewing of encrypted PDF files with password protection *Display / non-display of statusbar when reading Bookshelf: *Display form: Choose form list bookshelf / visual bookshelf *Function to set theme of visual bookshelf with each folder *Bookshelf thema extension pack (Add-On) *Cover editing function (corresponds to the trim) *File editing function: create, move, delete, setting for all books in folder *Bookmark list *Reading history list *Unread list *Edit of mark choose form already read / unread *Book name search function *Network transfer through Dropbox *USB transfer through iTunes *Direct transfer from other applications Special thanks to, "Give My Regards to Black Jack" SHUHO SATO Manga on Web http://mangaonweb.com

About

マチイロ

This app provides local government news and information, allowing users to stay updated on their community. It offers push notifications for the latest updates and free access to official city newsletters. Users can also explore content that makes local government more accessible.

Highlights
  • Local government news updates
  • Push notifications for latest info
  • Free access to city newsletters
  • Content to make local government accessible
  • Information on various municipalities
  • Translated newsletters available
Features
Read full description

おかげ様で導入機関数が1,000件を突破! 配信中の自治体は下記よりご確認ください。 https://machiiro.town/map マチを好きになるアプリ「マチイロ」 あなたの住む地域や全国の自治体に関する情報を、いつでもどこでもご覧いただけます ・ホームページの最新情報をプッシュ通知でお知らせ ・配信自治体の広報紙(最新号)がいつでも無料で読める ・自治体をもっと身近にするコンテンツも配信中 ※お住まいの地域と簡単な個人設定をするだけでご利用いただけます ※一部地域では翻訳した広報紙を読むことが可能です ●こんな方にオススメ ・お住まいの地域に関する情報を漏らさずチェックしたい ・出身地や離れた家族が住んでいる地域の情報を確認したい ・地方創生や地域のまちづくりに関心がある ご要望・ご質問・不具合は下記のアドレスまで気軽にお問い合わせください info(at)machiiro.town

Screenshots

SideBooks4 screens
マチイロ4 screens

Verdict

The call

The clearest difference is review sentiment: SideBooks at 74% against マチイロ's 5%. SideBooks also leads on update cadence (every 9 days vs monthly). マチイロ's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement 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. SideBooks sells 1 one-off in-app purchase. マチイロ asks for nothing beyond the download.

UpkeepUpdate frequency

SideBooks ships an update every 9 days, マチイロ monthly. Both last shipped on October 29, 2026.

Scorecard4 real differences · 6 level
SideBooks versus マチイロ: the parameters behind the verdict, then further details
ParameterSideBooksマチイロ
PriceFreeFree
Rating4.6 (97 ratings) — better—
Positive reviews73.7% of reviews — better5.0% of reviews
Number of ratings97 — better—
Update frequencyEvery 9 days — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size33 MB17 MB
Age rating4+12+
DeveloperTatsumi-system Co., Ltd.JICHITAI WORKS, K.K

Customer experience

SideBooks

All ratings97 ratings
Positive92.8%
Neutral2.1%
Negative5.2%
Written reviews518 reviews
Positive73.7%
Neutral9.1%
Negative17.2%

マチイロ

Written reviews20 reviews
Positive5.0%
Neutral15.0%
Negative80.0%

Bugs and requests

SideBooks

Reported bugs

3 issues
  • Crashes when opening certain PDF files
  • Corrupted files cause repeated crashes
  • Dropbox integration issues on some devices

Requested features

6 requests
  • Add support for ePub and other popular formats
  • Implement iCloud/Google Drive integration
  • Allow manual rearrangement of bookshelf
  • Add dark mode and customizable background options
  • Improve bookmark and annotation features
Show 1 more
  • Implement a more intuitive file management system

マチイロ

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

SideBooks

One-time1
  • Thema extension Add-On$0.99
None

マチイロ

No in-app purchases

Questions

Is SideBooks free?
SideBooks is free to download, with in-app purchases available.
Is マチイロ free?
マチイロ is free to download, with no in-app purchases.
Do SideBooks or マチイロ have ads?
Neither SideBooks nor マチイロ shows ads.
Which is updated more often, SideBooks or マチイロ?
SideBooks ships an update every 9 days, and マチイロ monthly. Most recently, SideBooks was updated on October 29, 2026 and マチイロ on October 29, 2026.

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