Comparison

Soragaki start up vs UDリーダー

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

Head to head
About

Soragaki start up

This application helps elementary school students master the stroke order and form of Chinese characters through interactive tracing. It covers all mandatory characters for grades 1-6, offering detailed character information and motivational rewards.

Highlights
  • Interactive character tracing
  • Covers all mandatory elementary school characters
  • Three practice levels
  • Character usage and derivation information
  • Motion picture of stroke order
  • Motivational flower prizes
Features
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Soragaki software, the application software for mastering the stroke order of Chinese characters, has been invented for elementary school students to learn both the right stroke order and the form of Chinese characters by tracing over model characters on the screen of the tablet computer with a stylus pen or fingers at three levels. As a result, elementary school students can master not only the stroke order and the form of Chinese characters but also an appropriate way of finishing each stroke.* Traditionally, the word "Soragaki" means the method used to teach children the correct stroke order and the form of Chinese characters. When translating "Soragaki" into English, one can translate the word as "writing in the sky". As this translation shows, "Soragaki" is a dynamic method to give the discipline of writing Chinese characters to the learners. This time, we made a success in replicating the features of "Soragaki" in a tablet computer. Mastering the correct stroke order leads to the acquisition of the ability to write in a good hand. At the same time, students are likely to study Chinese characters, which are new to them, enjoying without any mental suffering. This Soragaki software includes all of the Chinese characters that should be learnt in elementary school. Besides that, we made lots of efforts toward showing letters clearly in the same font type as the textbook in order to enable the students to study comfortably. Moreover, the learners will obtain special information about the character such as how to use the character, the motion picture of the stroke order, and the derivation of the character. Each time the learners master the each character, they will get a mark of the flower on the character as a prize. This special prize will surely accelerate students' motivation to learn and finally fill the students' hearts with satisfaction with accomplishment. *Chinese characters have three types of ways of ending each stroke. 1."Tome" : finishing a stroke with complete stop 2."Hane" : finishing a stroke with a sharp hook 3."Harai" : finishing a stroke smoothly without making rapid stop - Specific functions of Soragaki software ・ It contains all the Chinese characters that the Ministry of Education, Culture, Sports, Science and Technology formally regards as mandatory in elementary school. ・ The mandatory characters in each grade can be sorted depending on the pseudo-Chinese reading of each character, stroke count, or the radical of each Chinese character. Therefore, students can freely learn the characters that they want to master. ・ It requires its users to practice Chinese characters at three levels, which guarantees them that they can effectively learn the characters.

About

UDリーダー

Features
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このアプリで行えることは以下の通りです。 【表示モード】  このアプリには固定表示モードと行移表示モードの2つの表示モードがあります。 ・固定表示モード:オリジナルのコンテンツのレイアウトをできるだけ再現した表示モードです。原本の書籍等と似たレイアウトで読みたい方には向いています。また,授業などで教員が「38ページの右下の写真を見て。」といった指示にも即応できます。 ・行移表示モード:文字のみの表示で,文字の大きさを大きくできる表示モードです。文字サイズを大きくできるため,原本のレイアウトの概念はなくなります。しかし,文字だけを大きくして読むことに集中したい場合に向いています。 ・固定表示モードと行移表示モードの両方を同時に表示できます。 ・固定表示モードでは,見開き表示と単票表示を選択できます。教科書のように見開きでページが構成されている場合は見開き表示が読みやすいです。 【読み上げ】  このアプリは読み上げ機能が備わっています。 ・このアプリでは合成音声にいよる読み上げが可能です。 ・読み上げ時に,読み上げに同期したハイライトが表示されます。 ・ハイライトの長さは,文節単位と,段落単位で設定できます。 ・ハイライトは,固定表示と行移表示を併用している場合,同期して表示されます。 ・ハイライトの色をカスタマイズできます。 【ふりがな】  ふりがなを表示することができます。 ・ひらがな,カタカナを選択できます。 【その他】  その他の機能を含んでいます。 ・テキストメモを文字に貼り付けられます。 ・描き込みによりアンダーラインなどを記入できます。 ・ページジャンプにより,ページ番号指定でページを移動できます。 ・ページ記憶,ページを記憶しておき,そのページを表示することができます。  この仕様は予告なく変更されることがあります。  UD-Bookに関するお問い合わせは,以下までお願いします。 https://jpn01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fhome.hiroshima-u.ac.jp%2Fujima%2Fonsei%2Findex.html&data=05%7C01%7Cm214634%40hiroshima-u.ac.jp%7C06f8ae5715d84d5565e008da70ebd026%7Cc40454ddb2634926868d8e12640d3750%7C1%7C0%7C637946455349592114%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=bHEFJSsAe707zb6R9e%2BPY4g7Cjwl1TOQ0MuVxQnHP4Y%3D&reserved=0 このアプリの開発に当たっては,広島大学氏間研究室のスタッフが活躍しました。 (五十音順) 開発グループ  奥屋 玲香  谷口 昭彦  中村 雄大  諸星 奏希 評価グループ  西川 英理子  山下 祥代

Verdict

The call

The clearest difference is update cadence: UDリーダー at every 3 weeks against Soragaki start up's every 11 months. Soragaki start up's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and device support 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

Soragaki start up ships an update every 11 months, UDリーダー every 3 weeks. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.

Scorecard2 real differences · 8 level
Soragaki start up versus UDリーダー: the parameters behind the verdict, then further details
ParameterSoragaki start upUDリーダー
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 11 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPadiPad
Requires iOS12.0 — better15.0
Further details — not scored
Size12 MB9 MB
Age rating4+4+
DeveloperBUNKEIDO CO.,LTD.kazuhito ujima

In-app purchases

None

Soragaki start up

No in-app purchases

None

UDリーダー

No in-app purchases

Questions

Is Soragaki start up free?
Soragaki start up is free to download, with no in-app purchases.
Is UDリーダー free?
UDリーダー is free to download, with no in-app purchases.
Do Soragaki start up or UDリーダー have ads?
Neither Soragaki start up nor UDリーダー shows ads.
Which is updated more often, Soragaki start up or UDリーダー?
Soragaki start up ships an update every 11 months, and UDリーダー every 3 weeks. Most recently, Soragaki start up was updated on November 6, 2026 and UDリーダー on November 7, 2026.

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