Comparison

GlobeViewer PRO vs Jazz Theory

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

Head to head
About

GlobeViewer PRO

Explore Earth with a high-resolution 3D globe and detailed topography maps. View surface and underwater features, track natural events, and discover millions of place names. Offline data caching is available for continued exploration.

Highlights
  • Interactive 3D globe
  • High-resolution topography maps
  • Surface and underwater views
  • Natural event tracking
  • Offline data caching
  • Millions of place names
Features
Read full description

GlobeViewer is a high resolution 3D terrestrial globe with topography and surface maps. This app enables a high-quality view of the surface of our blue planet. It is divided into two areas: the rotatable, global view as an interactive globe and a high-resolution 3D map representation of the Earth's topography. - Interactive 3D globe with surface, underwater and topography maps - High-resolution 3D topography map set of the entire Earth's surface - divided into 22,912 individual tiles. You can load 110 different regions onto the interactive globe, which then present the many individual tiles in a meaningful, connected way and reload them automatically. The app initially only contains the textures for the globe in low resolution. All required downloads are automatically loaded from our server. A total of around 105 GB of data is available. The data remains in the cache on your device for offline use, but can be deleted at any time in the main menu. Furthermore, all events recorded by the GDACS, such as hurricanes, earthquakes, etc., are entered on the globe. The 3D topography map is based on the elevation data from the NASA Terra probe, which recorded 83° of the northern and southern hemispheres between 2000 and 2013 - this is the result of the ASTER3-DEM. With version 0.10.0, the map is enriched with around 7.5 million place names from geonames.org. This means that all the towns, mountains, lakes, deserts and many other geographical features entered there are shown on the map. From version 0.12.0, data from OpenStreetMaps (buildings, borders, streets...) is also available on the tiles - but only for the demos and the purchased maps. Use the tutorial in the app to get started quickly or read the manual to find out which functions are included in this app. Since the app is still under development, some functions may still change. We hope you enjoy using GlobeViewer!

About

Jazz Theory

Features
Read full description

毎日5分、ジャズ理論の「反射的理解」を目指す。 Jazz Theory は、ジャズアドリブに不可欠な音楽理論を、 ゲーム形式で習得するiOSアプリです。 【なぜこのアプリが必要か】 ジャズセッションやライブで即興演奏するには、 理論知識を「瞬時に使える状態」に定着させることが重要です。 単なる暗記ではなく、反射的に使えるレベルまで鍛えることで、 セッション中に「次に何を弾くか」を瞬時に判断できるようになります。 本アプリは、毎日5分のゲーム感覚のトレーニングで、 ジャズアドリブに必要な理論知識を効率的に定着させます。 【11段階のプログレッシブラーニング】 アプリは11個のステージで構成されており、 基礎から実践まで段階的に学習できます。 ■ 第1段階:スケール基礎(2ステージ) Stage 1: メジャースケール ドレミファソラシド = 明るく楽しい響き ジャズ理論の基本となるスケール このステージで「スケールとは何か」を理解します Stage 2: ナチュラルマイナースケール メジャースケールの6度から始めた音階 暗く悲しい響き、ジャズの基本スケール マイナーキーの即興に必須です ■ 第2段階:4大コード理論(4ステー

Screenshots

GlobeViewer PRO4 screens
Jazz Theory4 screens

Verdict

The call

The clearest difference is price: Jazz Theory at Free against GlobeViewer PRO's $14.99. Jazz Theory also leads on update cadence (every 2 weeks vs every 3 months). GlobeViewer PRO's advantage is device support (4 vs 2) and iOS requirement (12.0 vs 18.0). On ads and in-app purchases 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

Jazz Theory is free to download; GlobeViewer PRO costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

GlobeViewer PRO ships an update every 3 months, Jazz Theory every 2 weeks. Both last shipped on October 24, 2026.

Scorecard4 real differences · 6 level
GlobeViewer PRO versus Jazz Theory: the parameters behind the verdict, then further details
ParameterGlobeViewer PROJazz Theory
Price$14.99Free — better
Rating1.0 (1 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaid—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS12.0 — better18.0
Further details — not scored
Size236 MB20 MB
Age rating4+4+
DeveloperRAB-Softwareryusei kukita

In-app purchases

None

GlobeViewer PRO

No in-app purchases

None

Jazz Theory

No in-app purchases

Questions

Is GlobeViewer PRO free?
GlobeViewer PRO costs $14.99, with no in-app purchases.
Is Jazz Theory free?
Jazz Theory is free to download, with no in-app purchases.
Do GlobeViewer PRO or Jazz Theory have ads?
Neither GlobeViewer PRO nor Jazz Theory shows ads.
Which is updated more often, GlobeViewer PRO or Jazz Theory?
GlobeViewer PRO ships an update every 3 months, and Jazz Theory every 2 weeks. Most recently, GlobeViewer PRO was updated on October 24, 2026 and Jazz Theory on October 24, 2026.

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