Comparison

こえで星座 vs Satellite Tracker

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

Head to head
About

こえで星座

Features
Read full description

「こえで星座」は、星座や星の名前を“声で答える”クイズアプリ。星の並びを見て「これはなに座?」と声でこたえるだけ。声がむずかしいときは4つから選ぶタップ(4たく)でもOK。星の色・季節・神話(七夕の彦星・織姫など)も、ヒントとカードで楽しく覚えられます。 ■ こんなお子さまに ・星や宇宙、理科が好きな小学生 ・中学受験(理科・天体)の芽を育てたいご家庭 ・寝る前や帰宅後の5〜10分で、季節の星空とつながりたい ■ あそびかた(みる→こえでこたえる→わかる→ずかんにためる) ・星の並びを見て、星座や星の名前を声で1つこたえる ・わからなくても大丈夫。ヒントを開く/4たくから選ぶ/「つぎへ」で止まらない ・正解のあと、やさしい解説。星座カードが図鑑にたまる ・「きょうの星空」は今の季節に見える星座を優先。連続日数バッジで続けやすい ■ 学べること ・有名な20星座と主要な星(シリウス・ベガ・アルタイル・北極星 ほか) ・星の色(青白・オレンジ・赤…)と季節、神話や愛称(七夕の彦星=アルタイル など) ・星図はすべて自前描画。星の位置・明るさ・色は公開データにもとづく事実です ■ 安心の設計 ・広告ゼロ。追加課金なし(買い切りのみ・サブスクではありません) ・声は端末の中だけで処理(オンデバイス)。録音は保存せず、外部に送りません ・学習の記録は端末内だけ。サーバーやクラウドには送りません ・遊ぶのに通信は不要(オフライン)。購入・復元のときだけApp Storeと通信します ・購入は保護者ゲート(かんたんな計算/4桁PIN)の内側だけ。お子さまに課金導線を見せません ・きょうだいで共有できます(端末内プロフィール/ファミリー共有対応) ■ 料金 ・無料で人気の星座(オリオン・北斗七星・夏の大三角・さそり座 ほか)が遊べます ・買い切り¥300で、全星座+関連知識の図鑑をすべて解放します 声で、楽しく、星空を覚えよう。

About

Satellite Tracker

Explore a live, 3D map of over 14,000 satellites orbiting Earth in real-time. Discover upcoming visible passes, identify objects in the sky with augmented reality, and learn about each satellite's orbit and history.

Highlights
  • Live 3D satellite map
  • Visible pass predictions
  • Augmented Reality (AR) mode
  • Detailed satellite information
  • Offline catalog
  • Search and share satellites
Features
Read full description

Every satellite in the sky, live on a spinning globe — all 14,000 of them. Satellite Tracker draws the whole catalog moving in real time: Starlink's woven shells, the GPS constellations, the ISS and Tiangong, spent rocket stages and tumbling debris. Filter by constellation or by nation, crank time to 600× and watch low orbits swirl while the geostationary ring hangs still. TONIGHT'S SKY See which satellites you can watch with your own eyes tonight — sunlit passes over your location, with rise direction, peak height and duration. Get an alert 10 minutes before, walk outside, look up. POINT YOUR PHONE AT IT AR mode draws satellites on your real sky. Pick the ISS, follow the arrow, and the station is right where your camera points. EVERY SATELLITE HAS A STORY Tap any dot for altitude, speed, period, inclination and its full orbit ring. Search 14,000 objects by name. Share any satellite with a friend. Works fully offline with a bundled catalog; live orbital elements when connected.

Screenshots

こえで星座4 screens
Satellite Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: Satellite Tracker at none against こえで星座's 1. こえで星座's advantage is iOS requirement (15.1 vs 18.6). On price, update cadence, 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. こえで星座 sells 1 one-off in-app purchase. Satellite Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

こえで星座 ships an update every 2 months, Satellite Tracker every 6 weeks. The most recent releases landed on October 25, 2026 and November 1, 2026 respectively.

Scorecard2 real differences · 8 level
こえで星座 versus Satellite Tracker: the parameters behind the verdict, then further details
Parameterこえで星座Satellite Tracker
PriceFreeFree
Rating—5.0 (2 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better18.6
Further details — not scored
Size25 MB11 MB
Age rating4+4+
DeveloperHideaki YasukawaCinnamon Mobile LLC

In-app purchases

1 purchases

こえで星座

One-time1
  • 全星座アンロック$1.99
None

Satellite Tracker

No in-app purchases

Questions

Is こえで星座 free?
こえで星座 is free to download, with in-app purchases available.
Is Satellite Tracker free?
Satellite Tracker is free to download, with no in-app purchases.
Do こえで星座 or Satellite Tracker have ads?
Neither こえで星座 nor Satellite Tracker shows ads.
Which is updated more often, こえで星座 or Satellite Tracker?
こえで星座 ships an update every 2 months, and Satellite Tracker every 6 weeks. Most recently, こえで星座 was updated on October 25, 2026 and Satellite Tracker on November 1, 2026.

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