Comparison

SpaceStationAR vs SPI言語 【Study Pro】

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

Head to head
About

SpaceStationAR

Visualize satellites, stars, and galaxies in augmented reality. Track the International Space Station, Starlink trains, and more overlaid on your surroundings. Access celestial charts, event calendars, and receive notifications for upcoming passes.

Highlights
  • AR satellite pass simulation
  • Real-time satellite tracking
  • Display of stars, galaxies, and spacecraft
  • Satellite orbits on maps and charts
  • Calendar of upcoming passes and launches
  • Satellite pass notifications
  • Night Observation Mode
Features
Read full description

SpaceStationAR is an augmented reality (AR) application that simulates the visibility of satellites in the night sky. With SpaceStationAR, you can easily spot the brilliant International Space Station, spectacular Starlink Trains, and various satellites at the forefront of space exploration with your own eyes! As your iPhone or iPad camera captures the scenery around you, SpaceStationAR overlays passes of the International Space Station, the Starlink Train (a group of Starlink satellites), and the Chinese Space Station onto the actual scenery. You can also use the app to find bright stars, galaxies, spacecrafts like Voyager 1 and Voyager 2, and even see the direction of major cities beyond the ground. SpaceStationAR also indicates the positions of geostationary satellites, making it a valuable tool for antenna installation. It can even forecast potential atmospheric re-entries of satellites. You can easily access satellite orbits on maps and celestial charts in addition to the AR views. The "Calendar" tab displays events like upcoming satellite passes and rocket launches within the next two weeks. You can choose a pass from the list and simulate it in AR. SpaceStationAR also comes with an Apple Watch app and a "Today" widget. If you have a compatible device, you can conveniently check a simplified satellite forecast list without needing to open the main app. List of Features * AR simulation of satellite passes overlaid on real landscapes * Real-time tracking of passing satellites (Exclusive to the paid version) * Display of stars, galaxies, black holes, planetary probes, satellites, and world cities in AR (Visibility can be customized by type) * Visualization of satellite passes on maps and celestial charts (Celestial chart feature is available in the paid version) * Presentation of satellite orbits and current locations on a global map * Calendar listing satellite passes within the next two weeks * Support for newly launched satellites * Turn on "Night Observation Mode" to switch AR and the celestial chart to a red-and-black color scheme, helping your eyes stay adapted to the dark (Night Observation Mode is available in the paid version) * Offline app usage * Forecasts potential atmospheric re-entries of satellites (currently in beta) * Satellite pass notifications: Set notification times from 15 minutes to 6 hours before the event for accurate alerts. (Please allow background location updates for precise notifications. Disabling this feature may lead to inaccurate notifications when traveling long distances with the app closed.) The LITE version of the app restricts AR mode display to 30 minutes before satellite passes and does not provide real-time AR functionality. Additionally, advertisements will be displayed at the bottom of the screen. http://itunes.apple.com/jp/app/torisat/id361194118?mt=8

About

SPI言語 【Study Pro】

This app helps users prepare for the SPI language test with a large question bank and detailed explanations. It features an optimal learning mode that prioritizes difficult and unlearned questions, along with a high-function handwriting memo tool.

Highlights
  • Optimal learning mode
  • 232 practice questions
  • Detailed explanations for all questions
  • Handwriting memo tool
  • Covers various language categories
Features
Read full description

------------------------------ トップチャート ------------------------------ 有料アプリランキング5位(教育)獲得! 大人気御礼600円から360円のセールを延長中! ------------------------------ お薦めのポイント ------------------------------ ・特長① 最適学習モード搭載! 最適学習モードは、未学習の問題と苦手な問題が優先的に出題される、学習効果を徹底的に追求したモード。時間のない就活生には、必ず役に立つ! ・特長② 十分な問題量! 全232問(例題を含む)を収録! ※市販の問題集(SPI言語分野)の約2倍程度 ・特長③ 全問題に本よりも詳しい解説つき! 「Study Proならでは」の徹底解説! ユーザーに疑問点を残さない! ・特長④ 高機能手書きメモツールつき! 選択肢の消去や、問題を解く過程をメモに残すことができる! ------------------------------ カテゴリ一覧 ------------------------------ ・二語の関係(同意語関係、反意語関係、包含関係、役割関係、原材料関係、並列関係、セット関係) ・語句の意味(難解語句、四字熟語) ・語句の用法(同音異義語、比喩的用法、文法) ・文の並び換え ・空欄補充 ・空欄補充(3文) ・空欄補充(3語) ・熟語の成り立ち ・文節の並び換え ・長文読解

Screenshots

SpaceStationAR4 screens
SPI言語 【Study Pro】4 screens

Verdict

The call

The clearest difference is in-app purchases: SpaceStationAR at none against SPI言語 【Study Pro】's 1. SpaceStationAR also leads on update cadence (weekly vs monthly) and device support (4 vs 2). SPI言語 【Study Pro】's advantage is iOS requirement (9.0 vs 15.6). On price, review sentiment and ads 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

SpaceStationAR costs $2.99 and SPI言語 【Study Pro】 $2.99 up front. SPI言語 【Study Pro】 sells 1 one-off in-app purchase. SpaceStationAR asks for nothing beyond the download.

UpkeepUpdate frequency

SpaceStationAR ships an update weekly, SPI言語 【Study Pro】 monthly. The most recent releases landed on October 14, 2026 and October 10, 2026 respectively.

Scorecard5 real differences · 5 level
SpaceStationAR versus SPI言語 【Study Pro】: the parameters behind the verdict, then further details
ParameterSpaceStationARSPI言語 【Study Pro】
Price$2.99$2.99
Rating4.8 (117 ratings) — better—
Positive reviews65.5% of reviews70.0% of reviews — better
Number of ratings117 — better—
Update frequencyWeekly — betterMonthly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, iPod
Requires iOS15.69.0 — better
Further details — not scored
Size24 MB8 MB
Age rating4+4+
DeveloperToriningen Co.,Ltd.Study Pro

Customer experience

SpaceStationAR

All ratings117 ratings
Positive96.6%
Neutral1.7%
Negative1.7%
Written reviews84 reviews
Positive65.5%
Neutral13.1%
Negative21.4%

SPI言語 【Study Pro】

Written reviews20 reviews
Positive70.0%
Neutral15.0%
Negative15.0%

In-app purchases

None

SpaceStationAR

No in-app purchases

1 purchases

SPI言語 【Study Pro】

One-time1
  • SPI英語(ENG)$0.99

Questions

Is SpaceStationAR free?
SpaceStationAR costs $2.99, with no in-app purchases.
Is SPI言語 【Study Pro】 free?
SPI言語 【Study Pro】 costs $2.99, and also offers in-app purchases.
Do SpaceStationAR or SPI言語 【Study Pro】 have ads?
Neither SpaceStationAR nor SPI言語 【Study Pro】 shows ads.
Which is updated more often, SpaceStationAR or SPI言語 【Study Pro】?
SpaceStationAR ships an update weekly, and SPI言語 【Study Pro】 monthly. Most recently, SpaceStationAR was updated on October 14, 2026 and SPI言語 【Study Pro】 on October 10, 2026.

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