Comparison

Pitch Scope vs Kifu Vault

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

Head to head
About

Pitch Scope

Analyze sound in real time by visualizing its pitch, waveform, and spectrum. Explore the acoustic differences in voices and musical instruments. Understand how different sounds are represented visually.

Highlights
  • Real-time pitch measurement
  • Waveform display
  • Spectrum analysis
  • Voice and instrument sound analysis
  • Visual comparison of sounds
Features
Read full description

The pitch scope app measures sound from the microphone and displays its pitch(frequency), waveform, and spectrum in real time. Use this app to analyze voices and instrument sounds. Why do vowels U O A E I sound like U O A E I? You can see and check the waveform and spectrum of each vowel.  When you hear someone says “this guitar sounds brightly and that one sounds heavy”, what is the difference? For such a question, you can check it with this app.

About

Kifu Vault

This app helps you study your Shogi games by saving and reviewing key moments as quizzes. It allows you to organize your game records, search for specific board positions, and import existing game files. Designed for serious study and skill improvement.

Highlights
  • Save key game moments as quizzes
  • Organize games by custom labels
  • Search for specific board positions
  • Import various Shogi game file formats
  • Create custom Shogi quizzes
  • Print and export game records
Features
Read full description

自分の将棋の勉強ノート。AIに頼らず、自分の頭で考えて強くなるためのアプリです。 「対局で負けた。どこが悪かったか、次は忘れたくない」 → 棋譜を貼り付けて、悪かった場面を「クイズに保存」。正解するたびに次に出るまでの間があき、まちがえた問題はすぐまた出ます。 「同じ戦型で、いつも負けている気がする」 →「自分の定跡」で、いつもの局面で自分が何を指して何勝何敗だったかが分かります。 「前に指したあの形の対局、どこだっけ?」 → 駒をならべると、その形になった自分の対局が出てきます(局面検索)。 将棋の先生(鈴木肇)が作りました。 ■ 1,000円の買い切り ● 月額なし・追加の課金なし・広告なし・会員登録なし ● 電波がなくても、すべての機能が使えます。通信は「新しい版が出ているか」の確認だけで、棋譜やお名前は送りません ● 棋譜・メモ・クイズは端末の中だけに保存します ● 個人情報を集めません ■ 習ったことが、身につく ● 「ここが悪かった」と言われた場面を、そのまま保存 ● 「クイズに保存」で残すと、メモつきの「次の一手クイズ」になります ● まちがえた問題は10分後にまた出ます。正解すると1日・2日・4日…と間があいていきます ● 解くほど段位が上がります ● 先生は、生徒に復習の宿題をリンクで送れます ■ 棋譜の保存と検索が、本格的 ● 局面検索:駒をならべると、その形の対局が出てきます(駒ひとつからでも) ● 対局者・棋戦・戦型・年でもさがせます ● 「自分の戦法」ラベルで、自分流に整理できます ● 二重保存+まるごとバックアップ。端末を替えても戻せます ■ いま使っているアプリの棋譜を、そのまま持ってこられます ● ZIP・7z のまま、まとめて取り込めます(何局でも) ● 読める形=KIF・KI2・CSA・USI・SFEN・JKF・盤面図 ● 棋書から起こした、分かれ道の多い棋譜も、正しい枝のまま読めます ● 読めなかった時は、何手目が読めなかったかをお伝えします ■ できること ● 本物のルールの盤。反則(二歩・打ち歩詰めなど)は指せません ● 戻る/進む/早送り・早戻し/盤の反転 ● 「もしこう指したら?」の分かれ道(分岐)も保存できます ● 局面にメモ。同じ場面に来ると出てきます ● 投了・中断・千日手・持将棋・入玉勝ちを記録 ● 駒落ち19種類(香落ち〜十枚落ち・金落ち・三枚落ちなど)+「じぶんの駒落ち」 ● 棋譜用紙(A4)を印刷・PDFに ● 書き出し=KIF・KI2・CSA・USI・JKF・盤面図・SFEN ■ こんな方に ・棋譜をためて研究したい有段者 ・指導対局で習ったことを身につけたい方 ・将棋教室に通うお子さん、級位者の方 ・生徒に復習の宿題を渡したい指導者の方

Screenshots

Pitch Scope4 screens
Kifu Vault4 screens

Verdict

The call

The clearest difference is review sentiment: Kifu Vault at 60% against Pitch Scope's 0%. Kifu Vault also leads on update cadence (every 2 days vs every 3 months) and iOS requirement (15.0 vs 17.6). Pitch Scope's advantage is price ($2.99 vs $5.99). On ads, in-app purchases, monetization model 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

Pitch Scope costs $2.99 and Kifu Vault $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Pitch Scope ships an update every 3 months, Kifu Vault every 2 days. The most recent releases landed on November 7, 2026 and November 10, 2026 respectively.

Scorecard4 real differences · 6 level
Pitch Scope versus Kifu Vault: the parameters behind the verdict, then further details
ParameterPitch ScopeKifu Vault
Price$2.99 — better$5.99
Rating2.0 (1 ratings) — better—
Positive reviews0.0% of reviews60.0% of reviews — better
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size4 MB6 MB
Age rating4+4+
DeveloperNOKKEUSI Inc.suzuki hajime

Customer experience

Pitch Scope

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Kifu Vault

Written reviews10 reviews
Positive60.0%
Neutral10.0%
Negative30.0%

In-app purchases

None

Pitch Scope

No in-app purchases

None

Kifu Vault

No in-app purchases

Questions

Is Pitch Scope free?
Pitch Scope costs $2.99, with no in-app purchases.
Is Kifu Vault free?
Kifu Vault costs $5.99, with no in-app purchases.
Do Pitch Scope or Kifu Vault have ads?
Neither Pitch Scope nor Kifu Vault shows ads.
Which is updated more often, Pitch Scope or Kifu Vault?
Pitch Scope ships an update every 3 months, and Kifu Vault every 2 days. Most recently, Pitch Scope was updated on November 7, 2026 and Kifu Vault on November 10, 2026.

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