Comparison

PaperCode vs 今日の漢字、一文字日記

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

Head to head
About

PaperCode

Organize your books and papers by assigning them to custom places and associating them with barcodes or QR codes. Quickly update an item's location by scanning its code. Automatically gather book information from databases by scanning ISBN barcodes.

Highlights
  • Manage items and places
  • Scan barcodes/QR codes
  • OCR for printed text
  • Automatic book information retrieval
  • Customizable place names
  • Quick item location updates
Features
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What you can do with this app: [The app remembers where your books/papers are.] *Manage ITEMS with PLACES where they belong to. -You can manage ITEMS and PLACES related to Barcodes/QR-codes by scanning codes or printed texts(OCR) using your phone's camera. -Only you need is minimum effort to add, update and search PLACES and ITEMS. -You can add and name any PLACES, such as "Bookshelf:A", "Box:B" and "Bed room closet". It is not necessary that PLACES are real physical places. They can be "Borrowed by John Doe", "Papers to copy", "Things to survey" and so on. -Though this app is designed for management of academic books and treatises(papers), you can also add and name any ITEMS. They can be "Golf shoes", "Water bottles for emergency", "Tax payment documents of 2019", "Buy salt", "Reserve restaurant" and so on. [Easier is better.] *Add, move, search, sometimes manage. With this app, you will: -Add(register) PLACES. Add(register) ITEMS and relate them to barcodes/QR-codes. -When you move an ITEM, scan a barcode/QR-code to update its PLACE to belong to. -Search an ITEM's name to find out its PLACE. -You can rename ITEMS and PLACES, update relationship between them and new codes, update their order in the lists at any time. [No automation, no life.] *ITEMS and PLACES cooperate with barcodes/QR-codes. -You can relate ITEMS and PLACES to any barcodes/QR-codes. -Once you created relationships between ITEMS/PLACES and codes, when you move an ITEM from current PLACE to another PLACE, all you have to do is: 1.Scan the code of the new PLACE using the camera, 2.Scan the code of the ITEM. That's it. It won't take more than 3 seconds. -The code will be scanned automatically when your camera focuses it. You don't even need to press the shutter button. -If the books or papers don't have barcodes/QR-codes, add codes to them. (for example, codes printed directly on the papers using handy printers or codes printed on sticker labels.) Any unique digits or characters will work. *Automatically collect information. -Information of books and papers (author, title, publisher, published date) will be collected automatically by searching with keyword(s). -This app accesses CiNii/CiNiiBooks database OpenSearch service on the web to get the information. -If you scan a barcode and the code is an ISBN, this app will collect and fill all necessary information automatically. All you need is to tap "OK" button. -You can search and find books or papers by using keyword(s). Use space for AND search and use slash for OR search. If multiple results hit, you can choose one to add as a new ITEM. -A particular chapter of a book can be added in the same way as a paper. *Relate ITEMS and PLACES to barcodes/QR-codes -Both ITEMS and PLACES can be related to barcode/QR-code. -You can delete or update(relate again) relationships between codes and ITEMS/PLACES. *Script(handwriting) recognition -If you can't use barcodes/QR-codes in some reason, you can try script(handwriting) recognition. It works, but it takes a lot of time and it won't recognize 100% correctly. So I strongly recommend you to use barcodes/QR-codes. [Nothing is more important than safety.] *Backup and export your data. -You can backup your data(ITEMS/PLACES) to a text file (as SQL expressions). -You can export backup file(s) to external storages/apps/services, such as iPhone's documents folder(which syncs with iCloud), Dropbox app, GoogleDrive app and so on. [Search and find at once.] *See all items in the place or search with keyword(s) -You can see all the ITEMS belonging to particular PLACE. -You can search an ITEM by keyword(s). AND/OR search is available. -You can search a PLACE as well. (but only AND search is available.)

About

今日の漢字、一文字日記

Features
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1日を一文字で切り取る、日記アプリ 「今日の漢字」は、毎日の気分や出来事を 漢字一文字 でサクッと記録できる日記アプリです。 長い文章は不要。思い浮かんだ一文字をパッと入力するだけで、あなたの1日が残せます。 特徴 爆速で書ける日記 文章を考える必要なし。1文字決めれば、もうその日の記録は完成! カレンダーで一望 記録した漢字がカレンダーに並んでいくので、1か月分を見返すとまるで「気分年表」。 おもしろ表現もOK 「眠」「爆」「鬼」「神」など、真面目でもネタでも自由。自分だけの辞書みたいに楽しめます。 サブメモ機能 一言だけ補足を残せるので、ちょっとした出来事も記録可能。 こんな人におすすめ 日記を始めたいけど続かない人 手軽に自分の気分を振り返りたい人 ネタっぽく「今日の一文字」をシェアしたい人 自分の1年を漢字でまとめてみたい人 未来の自分に「一文字の手紙」 一年分たまると、自分の気分の変化が一目で見えてきます。 「楽」が多い月、「眠」が多い週、「挑」が光った日。振り返ると、自分でも気づかなかった心の動きが漢字で浮かび上がってきます。 続けやすい理由 とにかく「楽で面白い」ことを大事にしています。 1日1文字だけなら、スマホを開いて3秒で完了。忙しい人でも、ズボラな人でも続けやすい設計です。 v2.0の新機能 ・連続記録(朱印バッジ): 「今日で11日連続」が積み上がっていきます ・ホーム画面ウィジェット: 今日の一字/直近7日/今月まるごと ・「これまで」タブ: 月の充足率と、今日のぶんのマスがひと目でわかります ・紙のテーマ(墨・藍・桜)と字の統計(プレミアム) ・ダークモード対応 プレミアムについて 中・大サイズのウィジェット、紙のテーマ、字の統計が使える自動更新サブスクリプションです(月額300円/年額2,000円)。 記録・履歴・小ウィジェットなど、これまでの機能はすべて無料のまま使えます。 購入の確定時にApple IDに課金されます。期間終了の24時間前までに自動更新をオフにしない限り、自動的に更新されます。更新の管理・解約は設定アプリのApple IDからいつでも行えます。 利用規約(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー: https://coconut-beginner-f20.notion.site/2718066636cd80408226cab3d518d662

Screenshots

PaperCode4 screens
今日の漢字、一文字日記4 screens

Verdict

The call

The clearest difference is price: PaperCode at Free against 今日の漢字、一文字日記's $1.99. PaperCode also leads on in-app purchases (none vs 2) and update cadence (every 3 weeks vs every 5 months). On 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

PaperCode is free to download; 今日の漢字、一文字日記 costs $1.99 up front. 今日の漢字、一文字日記 sells 2 in-app purchases, starting at $1.99 per month. PaperCode asks for nothing beyond the download.

UpkeepUpdate frequency

PaperCode ships an update every 3 weeks, 今日の漢字、一文字日記 every 5 months. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 6 level
PaperCode versus 今日の漢字、一文字日記: the parameters behind the verdict, then further details
ParameterPaperCode今日の漢字、一文字日記
PriceFree — better$1.99
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.6
Further details — not scored
Size25 MB22 MB
Age rating4+4+
DeveloperYuichiro MomosakiHIROTO TSUTSUSHIMA

In-app purchases

None

PaperCode

No in-app purchases

2 purchases

今日の漢字、一文字日記

Subscriptions2
  • Premium (Monthly)$1.991 Month
  • Premium (Yearly)7 Days trial$11.991 Year

Questions

Is PaperCode free?
PaperCode is free to download, with no in-app purchases.
Is 今日の漢字、一文字日記 free?
今日の漢字、一文字日記 costs $1.99, and also offers in-app purchases.
Do PaperCode or 今日の漢字、一文字日記 have ads?
Neither PaperCode nor 今日の漢字、一文字日記 shows ads.
Which is updated more often, PaperCode or 今日の漢字、一文字日記?
PaperCode ships an update every 3 weeks, and 今日の漢字、一文字日記 every 5 months. Most recently, PaperCode was updated on October 8, 2026 and 今日の漢字、一文字日記 on October 15, 2026.

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