DamApp vs Manhole Card Map
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DamApp
Discover over 2,000 dams across Japan. Search by name, distance, prefecture, type, or purpose. Record check-ins, dam card ownership, and add favorites or notes. All dam information is available offline.
- Search over 2,000 dams nationwide
- Filter by distance, prefecture, type, purpose
- Offline access to dam details
- Record check-ins and dam card ownership
- Map view with MAPCODE support
- Import visit records from text files
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日本全国で2千基を超えるダムから、ダムを検索 ・名前はもちろん、現在地からの距離、都道府県やダムの形式、ダムの目的、ダムカード配布の有無などからダムを検索できます。 ・チェックイン記録やダムカード所持情報を使えば、未訪問やダムカード未所持のダムの検索も。 ・検索したダムは、一覧でも、マップ上でも表示できます。 検索したダムを選んで、ダムの詳細を調べる ・住所や堤高、貯水容量などのダムの諸元やダムカード情報が参照できます。 ・ダムの情報はすべてオフラインでも参照可能(マップ上への表示のみ、インターネット接続が必要です)。 ・ダムやダムカード配布場所のMAPCODEを収録、NaviConへの転送に対応(NaviCon,MAPCODEは、株式会社デンソーの登録商標です)。 訪問日時やダムカードの所持情報を記録 ・位置情報を使ってチェックインし、訪問日時を記録。ダムカードを手に入れたら、所持情報も記録できます。 ・「お気に入り」や「行きたい」ラベルをつけたり、メモを追加することができます。ラベルを使ってダムを検索したり、メモの内容で検索することもできます。 ・チェックイン記録から、都道府県別やダムの形式別、目的別の訪問達成率を参照できます。ダムカードの所持率も。 ダムカードの配布情報やバージョン情報はできる限り収集して配信しており、最新の情報をダウンロードできるようになっています! すでに多くのダムを訪問している・多くのダムカードを所持していてそれらをひとつひとつ記録するのが面倒だ、という方にも! テキストファイルから訪問記録・ダムカード所持記録をインポートする機能も用意しており、一括して入力することで手間を省くことができます。
Manhole Card Map
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Manhole Card Map helps you find distribution locations for Manhole Cards across Japan and keep track of the cards you have collected. MAIN FEATURES ■ Find distribution locations on the map View distribution locations near your current position or travel destination. Pin colors make it easy to distinguish cards you have not collected, cards already collected, locations that are out of stock, and cards not yet available. ■ Manage your collection Mark a card as collected with a single tap. You can also view card images, detailed information, and related websites. ■ Filter to plan your visits Filter cards by region, series, collection status, and availability on weekdays, weekends, or public holidays. ■ Update distribution location data Download updated distribution location data directly in the app. ■ Back up and transfer your data Export your collection status to a file and import it on another device. This is useful for backups and when moving to a new device. RECOMMENDED FOR • Manhole Card collectors • Travelers looking for nearby distribution locations in Japan • Anyone who wants a simple way to track collected and uncollected cards • People planning an efficient card-collecting trip Make Manhole Card Map your companion for collecting cards throughout Japan.
Screenshots
Verdict
The clearest difference is ads: DamApp at none against Manhole Card Map's shown. Manhole Card Map's advantage is update cadence (weekly vs every 2 months). On price, in-app purchases, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
DamApp ships an update every 2 months, Manhole Card Map weekly. The most recent releases landed on October 10, 2026 and October 15, 2026 respectively.
| Parameter | DamApp | Manhole Card Map |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 85.7% of reviews | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 228 MB | 141 MB |
| Age rating | 17+ | 4+ |
| Developer | Yuta Kokubo | TETSUNOSUKE HIDA |
In-app purchases
DamApp
No in-app purchases
Manhole Card Map
No in-app purchases
Questions
Is DamApp free?
Is Manhole Card Map free?
Do DamApp or Manhole Card Map have ads?
Which is updated more often, DamApp or Manhole Card Map?
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