Comparison

Card Hand Probability vs HPCG memo

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

Head to head
About

Card Hand Probability

Calculate the probability of drawing specific cards in your opening hand and assess the impact of redraws. Analyze deck consistency, compare card count changes, and save multiple deck configurations.

Highlights
  • Opening hand probability calculation
  • Redraw analysis with mulligan options
  • Customizable deck and hand sizes
  • Complex condition setting (AND/OR)
  • Probability comparison for card changes
  • Save and manage multiple decks
  • Multilingual interface
Features
Read full description

Check your chances of drawing key cards and make informed choices about card counts. Set the deck size, opening hand and success conditions to compare the consistency of your opening hands. Three steps: rules, cards, conditions • Set your deck size and opening hand size. • Choose no mulligan, one redraw after returning the whole hand, or one redraw excluding the whole hand. A redraw happens only when the hand fails your success conditions. • Enter names and counts for the cards you want to analyze. The remaining cards are grouped as Other cards. • Combine OR choices such as A or B with AND requirements such as A and B. Each AND row needs a separate physical card. If you add multiple success patterns, meeting any one counts as success. Read the probabilities clearly See the chance of meeting any condition, the chance of meeting none, and each condition's probability, displayed to three decimal places. With a mulligan, see the initial-hand probability and the gain from redrawing. Conditions can overlap, so their probabilities cannot be added together. Compare a one-card change Keep the deck size and rules fixed while adding or removing one copy. Choose which other card count changes in its place, then compare the before and after probabilities and the difference in percentage points. Apply the changed counts to your inputs. Save decks for your next build Save up to 3 named decks for free. Open, edit, duplicate and search by name. Your working draft is stored separately on your device so you can resume after an interruption, without using a saved deck slot. Copy a text backup of your saved decks to keep in a note or file, and import a copied backup later. 9 interface languages Japanese, English, Simplified Chinese, Traditional Chinese, Korean, Spanish, Brazilian Portuguese, French and German. Card and deck names stay as you entered them. Optional paid features Additional saved deck slots and ad removal are available through in-app purchases. Each slot purchase adds one slot. This app calculates opening hands and a single redraw under the conditions you set. It does not predict play sequences or match win rates.

About

HPCG memo

Manage your Harry Potter Card Game decks and collection with this fan-made app. Build decks according to game rules, search cards easily, track your owned cards, and share your decks with others.

Highlights
  • Deck building with rule enforcement
  • Card search with hiragana input
  • Owned card quantity management
  • Deck code sharing
  • In-app card details lookup
Features
Read full description

HPCG memo は、ハリー・ポッターカードゲーム (HPCG) のデッキ構築・所持カード管理を1つのアプリにまとめたメモアプリです。 ■ 主な機能 ・デッキ構築 — Partner1枚 + メインデッキ50枚 のルールに沿ってデッキを管理。同名カード4枚制限も自動チェック。 ・カード検索 — ひらがな入力でも検索可能(「はりー」→「ハリー・ポッター」)。タグでの絞り込み、レアリティ表示にも対応。 ・所持枚数管理 — カードごとに所持枚数を記録。デッキに対して何枚不足しているかを一目で確認。 ・デッキコード — デッキ構成をテキスト1行に圧縮してコピー&ペースト。別端末・他のプレイヤーと簡単に共有。 ・カード詳細 — 公式カードデータをアプリ内で素早く参照。 ■ 注意事項 本アプリは個人制作の非公式ファンメイドアプリです。Warner Bros. Entertainment Inc.、J.K. Rowling、株式会社ムービック、その他いかなる権利者とも提携・後援・公認関係はありません。

Screenshots

Card Hand Probability4 screens
HPCG memo4 screens

Verdict

The call

The clearest difference is in-app purchases: HPCG memo at none against Card Hand Probability's 2. HPCG memo also leads on update cadence (every 2 days vs every 9 days). On price, review sentiment, ads 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. Card Hand Probability sells 2 one-off in-app purchases. HPCG memo asks for nothing beyond the download.

UpkeepUpdate frequency

Card Hand Probability ships an update every 9 days, HPCG memo every 2 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 5 level
Card Hand Probability versus HPCG memo: the parameters behind the verdict, then further details
ParameterCard Hand ProbabilityHPCG memo
PriceFreeFree
Positive reviews100.0% of reviews100.0% of reviews
Update frequencyEvery 9 daysEvery 2 days — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhoneiPhone, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size108 MB48 MB
Age rating4+4+
DeveloperTakeru ItoSHOTA MIYAHIRA

Customer experience

Card Hand Probability

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

HPCG memo

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Card Hand Probability

One-time2
  • 保存デッキ枠拡張機能$0.49
  • 広告非表示機能$1.99
None

HPCG memo

No in-app purchases

Questions

Is Card Hand Probability free?
Card Hand Probability is free to download, with in-app purchases available.
Is HPCG memo free?
HPCG memo is free to download, with no in-app purchases.
Do Card Hand Probability or HPCG memo have ads?
Both Card Hand Probability and HPCG memo show ads.
Which is updated more often, Card Hand Probability or HPCG memo?
Card Hand Probability ships an update every 9 days, and HPCG memo every 2 days. Most recently, Card Hand Probability was updated on October 31, 2026 and HPCG memo on November 5, 2026.

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