Comparison

CollectBook vs 作品ログ

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

Head to head
About

CollectBook

Features
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CollectBook is the personal catalog app that lets you collect and organize anything you love. Create collections for the things that matter to you — movies you've watched, books you've read, restaurants you've visited, figures you've collected, games you've cleared. Set your own theme, add items with photos and notes, and build a personal database that's entirely yours. --- Collections for Everything --- There's no limit to what you can track. From hobbies and wishlist management to reviews and rankings — CollectBook adapts to any collection. Each collection gets its own rating style, so every theme feels right at home. --- Four Rating Styles --- Choose the rating method that fits your collection: • Star Rating (1–5): Perfect for movies, books, or anything you want to score • Rank (S / A / B / C / D): Great for games, spots, or tier-list style rankings • Check (Done / Not Done): Ideal for reading lists, bucket lists, and to-do tracking • Custom: Define your own scale with your own level names — up to 20 levels --- Powerful Filtering with Attributes --- Add custom attributes to each collection — like "Noodle Firmness" for a ramen log, or "Genre" for a music library. Filter items by any combination of attributes to find exactly what you're looking for. --- Search, Sort, and Browse --- Full-text search by name. Sort by rating, rank, check status, or date added. Group items by evaluation so you can see all your S-rank picks or 5-star favorites at a glance. Switch between grid and list view to browse your way. --- Bulk Add and Edit --- Select multiple photos at once and add them all in one go. Set names, ratings, and attributes in bulk before saving. You can also select multiple items to edit or delete them together — perfect for large collections. --- Your Data Stays on Your Device --- Everything is stored locally on your device. No accounts, no cloud sync, no data sent to external servers. CollectBook works fully offline — your collection is always private and always available. --- Backup and Restore --- Keep your collection safe with flexible backup options. Save backups inside the app (multiple generations) or export as a JSON file to Files or AirDrop. When restoring, pick individual collections to bring back — no need to overwrite everything. Auto-backup runs quietly in the background each time you leave the app. --- Key Features --- • Create and manage multiple collections • Add photos, notes, and custom attributes to items • Four rating styles: Star, Rank, Check, and Custom • Bulk photo import and bulk delete • Grid and list view • Search and filter by name and attributes • Group view by rating, rank, check status, or custom level • Backup and restore (in-app + file export) • Japanese and English support Start building your personal collection today.

About

作品ログ

Features
Read full description

作品ログは、観た映画の余韻を、自分のためだけに残すプライベートな日記です。本や漫画、音楽の記録にも対応しています。 ■ 記録はぜんぶ端末の中だけ 記録したデータは端末内にだけ保存されます。アカウント登録もログインも不要で、記録がインターネットへ送られることはありません。 ■ 何件でも、何度でも 記録できる件数に上限はありません。同じ作品を読み返しても観返しても、そのたびに別の記録として残ります。 ■ 記録すること 体験した日、星1〜5、任意の気分、任意の感想。書きたいところだけ書けます。 ■ 見返し方 - 作品棚: 映画・本・漫画・音楽を横断して並べます - ランキング: 今月・今年・全期間から、記録した作品を星順に見返せます - ホーム: 過去の記録を、そっと思い出させます ■ 作品の検索 映画はTMDBの作品情報とポスター、本と漫画の巻はApple Books、漫画シリーズはWikidata、曲・アルバムはApple Music(iTunes Search API)の情報から検索できます。検索を使わず手動で登録することもでき、その場合は通信が発生しません。表紙は端末内の写真から選べます。 TMDBのポスターは帰属表示とともに表示します。This product uses the TMDB API but is not endorsed or certified by TMDB. Apple Books/Apple Musicのアートワークは、提供元のバッジとストアリンクを表示できる場合だけ表示します。 ■ すべて無料 詳しい振り返り、作品棚の表示と並べ替えを含む全機能を、広告やアプリ内課金なしで使えます。

Screenshots

CollectBook4 screens
作品ログ4 screens

Verdict

The call

The clearest difference is update cadence: 作品ログ at every 5 days against CollectBook's every 4 months. 作品ログ also leads on iOS requirement (15.0 vs 17.0). 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

CollectBook ships an update every 4 months, 作品ログ every 5 days. The most recent releases landed on October 31, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 4 level
CollectBook versus 作品ログ: the parameters behind the verdict, then further details
ParameterCollectBook作品ログ
PriceFreeFree
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size2 MB38 MB
Age rating4+4+
DeveloperRIN OHUCHIKatsuhide Leung

In-app purchases

None

CollectBook

No in-app purchases

None

作品ログ

No in-app purchases

Questions

Is CollectBook free?
CollectBook is free to download, with no in-app purchases.
Is 作品ログ free?
作品ログ is free to download, with no in-app purchases.
Do CollectBook or 作品ログ have ads?
Neither CollectBook nor 作品ログ shows ads.
Which is updated more often, CollectBook or 作品ログ?
CollectBook ships an update every 4 months, and 作品ログ every 5 days. Most recently, CollectBook was updated on October 31, 2026 and 作品ログ on October 26, 2026.

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