Comparison

Harmonic Analysis vs GeoMemorizer

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

Head to head
About

Harmonic Analysis

Master music theory with interactive exercises focused on chord and Roman numeral analysis. Practice constructing chords, analyzing progressions, and improving your musical ear through various training modes and customizable settings.

Highlights
  • Chord to Roman numeral training
  • Chord construction exercises
  • Chord construction with keyboard
  • Chord progression analysis
  • Selectable difficulty levels
  • Support for inverted chords
  • Performance reports
Features
Read full description

"This app is a great way to learn your chords. It is simple, robust and well written, and has positive comments when you start it up." -- 5-Star App Store Review Master Roman numeral analysis and chord progressions. Whether you are preparing for AP Music Theory, ABRSM exams, or college-level harmony classes, Harmonic Analysis is your complete pocket tutor for understanding how chords work. Ditch the paper worksheets and practice interactively through four dedicated training modules: Roman Numeral Analysis • Identify the correct Roman numeral for the chord displayed on the staff. Chord Construction • Read a Roman numeral and build the correct chord directly on the sheet music. Keyboard Construction • Translate theory to practice by constructing the requested chord on an interactive piano keyboard. Progression Analysis • Analyze a sequence of Roman numerals and select the correct musical progression. Core Features for Serious Musicians • Comprehensive Clefs: Practice in Treble, Bass, Soprano, Alto, Tenor, and Baritone clefs. • All Keys Covered: Work across all 15 major and 15 minor key signatures. • Inversions: Full support for root position and inverted chords. • Audio Playback: Hear what you build—play and arpeggiate chords to train your ear alongside your eyes. • Smart Review: Flag difficult questions and keep a dedicated list for focused review sessions. • Track Progress: Monitor your accuracy and growth with detailed performance reports. Subscriptions • Payment will be charged to your Apple ID account at the confirmation of purchase. • The subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. • Your account will be charged for renewal within 24 hours prior to the end of the current period. • You can manage and cancel your subscriptions by going to your App Store account settings after purchase. • You will not be able to cancel the subscription once activated. Support & FAQ Do you have any questions? Visit our FAQ page at https://sightsinging.app/faq for detailed instructions and troubleshooting tips. You also can reach us by email at support@sightsinging.app. • Terms & Conditions https://sightsinging.app/terms-and-conditions • Privacy Policy https://sightsinging.app/privacy-policy

About

GeoMemorizer

Features
Read full description

GeoMemorizer は、日本の地理を「地図の上で」覚えるための学習アプリです。 白地図に並んだ地名・川・山・鉄道・道路の名前を、3つのモードでくり返し練習できます。 ■ 覚えられる項目 ・地名記憶 … 都道府県名(47)、市区町村名(全国1,747。都道府県を選ぶと、その地図に拡大します) ・河川名記憶 … 一級河川名(全国109水系の本川) ・山名記憶 … 100名山、標高3000m以上、2500m以上3000m未満、2000m以上2500m未満 ・鉄道・駅名記憶 … 新幹線・JR・私鉄の路線名と駅名(路線を選ぶと、その路線の駅に拡大します) ・道路名記憶 … 高速道路名、高速道路のIC・JCT名、国道番号 ■ 3つのモード ・表示モード … すべての名前とふりがなを表示。地図を眺めて覚えます ・記憶モード … 名前は隠れています。タップすると名前が表示され、もう一度タップで隠れます ・記入モード … タップして名前を入力。正解は緑、不正解は赤。全部正解すると「おめでとう!!」 記入の結果は、「リセット」を押すまで保存されます ■ 特長 ・名前の下にふりがなを表示。読み方の分からない地名や駅も覚えられます ・鉄道は路線の色、国道・高速道路も色分けして表示 ・ピンチで拡大・縮小、なぞって移動。地図アプリと同じ感覚で操作できます ・ダークモードに対応 ・通信を行わず、端末の中だけで動作。さくさく動きます ・個人情報や利用状況を集めることはありません ■ データの出典 ・国土数値情報(行政区域データ・鉄道データ・高速道路時系列データ)(国土交通省)を加工して作成 ・「地球地図日本」「日本の主な山岳標高」、地理院地図ベクトル(国土地理院)を加工して作成 ・読み: 総務省「全国地方公共団体コード」、国土交通省「河川整備基本方針」、Wikidata、Wikipedia

Screenshots

Harmonic Analysis4 screens
GeoMemorizer4 screens

Verdict

The call

The clearest difference is in-app purchases: GeoMemorizer at none against Harmonic Analysis's 3. Harmonic Analysis's advantage is update cadence (every 2 days vs every 2 weeks). On price, 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

Both are free to download. Harmonic Analysis sells 3 in-app purchases, starting at $3.99 per month. GeoMemorizer asks for nothing beyond the download.

UpkeepUpdate frequency

Harmonic Analysis ships an update every 2 days, GeoMemorizer every 2 weeks. The most recent releases landed on November 2, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
Harmonic Analysis versus GeoMemorizer: the parameters behind the verdict, then further details
ParameterHarmonic AnalysisGeoMemorizer
PriceFreeFree
Rating4.7 (22 ratings) — better—
Positive reviews42.9% of reviews—
Number of ratings22 — better—
Update frequencyEvery 2 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhoneiPhone, iPad — better
Requires iOS17.617.0 — better
Further details — not scored
Size86 MB20 MB
Age rating4+4+
DeveloperDeeryard LLCTakafumi Nakasu

In-app purchases

3 purchases

Harmonic Analysis

Subscriptions2
  • Premium Access Monthly$3.991 Month
  • Premium Access Yearly$39.991 Year
One-time1
  • One-time Payment$119.99
None

GeoMemorizer

No in-app purchases

Questions

Is Harmonic Analysis free?
Harmonic Analysis is free to download, with in-app purchases available.
Is GeoMemorizer free?
GeoMemorizer is free to download, with no in-app purchases.
Do Harmonic Analysis or GeoMemorizer have ads?
Neither Harmonic Analysis nor GeoMemorizer shows ads.
Which is updated more often, Harmonic Analysis or GeoMemorizer?
Harmonic Analysis ships an update every 2 days, and GeoMemorizer every 2 weeks. Most recently, Harmonic Analysis was updated on November 2, 2026 and GeoMemorizer on October 29, 2026.

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