Comparison

KaraLog vs うたキー | カラオケで自分のキーがすぐわかる

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

Head to head
About

KaraLog

Features
Read full description

KaraLog is an app for keeping track of the points you earn at karaoke. Easily log the songs you sing and the points you earn, and revisit your singing history and personal bests anytime. 【Add songs easily】 Search Apple Music or recognize music playing around you to add songs easily. Spend less time entering song titles and artist names by hand and keep your karaoke history effortlessly. 【Keep your records organized】 • Record scores and personal bests for each song • Save the date sung, karaoke machine, musical pitch adjustment, and more • Look back at past records and see your progress • Organize songs into folders 【More convenient, more fun】 • View playlists created in Apple Music • Discover songs to sing from popular music charts • Check your karaoke records with widgets “What score did I get on this song last time?” “I want to beat my personal best!” “I want to see how I’m improving on the songs I’m practicing.” KaraLog supports your karaoke life whenever you need it. It is great for solo karaoke, singing with friends, and keeping track of vocal practice. Enjoy recording your growth as a singer with KaraLog. Note: This app includes features that require an Apple Music subscription.

About

うたキー | カラオケで自分のキーがすぐわかる

Find the perfect karaoke key for your voice. This app analyzes your vocal range to suggest optimal key adjustments for any song, making it easier and more enjoyable to sing. Manage your song list and track your preferred keys for each track.

Highlights
  • Personalized key recommendations
  • Vocal range analysis
  • Song search by key and theme
  • Vocal performance tracking
  • Favorite song management
  • Easy-to-use interface
Features
Read full description

「この曲、キーが合わないな…」 カラオケでそう感じたこと、ありませんか? サビが高すぎて苦しい。原曲キーだと低すぎる。好きな曲なのに、なんだか気持ちよく歌えない——。 それは曲があなたに合っていないのではなく、“キー(高さ)”が合っていないだけかもしれません。 うたキーは、あなたの声に合ったカラオケのキーがわかるアプリです。 曲ごとに「何キー上げ/下げれば気持ちよく歌えるか」を提案。カラオケのキー設定にその数字を入れるだけで、いつもの曲が驚くほど歌いやすくなります。 ▼ できること ・声のプロフィールを登録すると、曲ごとに最適なキー(+2 / −3 / オク下…)を提案 ・◎ラクに出せる / ○ギリギリ、の手応えがひと目でわかる ・好きな歌手を選ぶと、“あなたが歌えるキーの曲”がホームに並ぶ ・最高音(hiA・hiB・hiC…)やテーマ、キー調整から曲を探せる ・歌った曲と使ったキーを記録。「前は+3が気持ちよかった」を次に活かせる ・持ち歌・マイリストで十八番を管理 ▼ 使い方はかんたん 1. かんたんな質問と数曲の登録で、あなたの声域を推定 2. 曲を選ぶと、あなた専用のおすすめキーを表示 3. その数字をカラオケのキー設定に入れて歌うだけ 無料でご利用いただけます(広告付き)。広告を消せるプレミアム(月額/年額)もあります。 キーが合えば、歌はもっと楽しくなる。 うたキーで、あなたにぴったりの高さを見つけてください。 【利用規約・プライバシー】 利用規約(EULA): https://utakey.jp/terms/ プライバシーポリシー: https://utakey.jp/privacy/

Screenshots

KaraLog4 screens
うたキー | カラオケで自分のキーがすぐわかる4 screens

Verdict

The call

The clearest difference is update cadence: うたキー | カラオケで自分のキーがすぐわかる at every 3 days against KaraLog's every 9 days. うたキー | カラオケで自分のキーがすぐわかる also leads on iOS requirement (18.0 vs 26.5). On price, ads, in-app purchases 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. KaraLog sells 1 one-off in-app purchase and うたキー | カラオケで自分のキーがすぐわかる sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

KaraLog ships an update every 9 days, うたキー | カラオケで自分のキーがすぐわかる every 3 days. The most recent releases landed on November 10, 2026 and November 12, 2026 respectively.

Scorecard2 real differences · 6 level
KaraLog versus うたキー | カラオケで自分のキーがすぐわかる: the parameters behind the verdict, then further details
ParameterKaraLogうたキー | カラオケで自分のキーがすぐわかる
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 9 daysEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.518.0 — better
Further details — not scored
Size15 MB35 MB
Age rating4+4+
DeveloperYuta NishimatsuDERUKU LLC

In-app purchases

1 purchases

KaraLog

One-time1
  • KaraLog Pro$3.99
3 purchases

うたキー | カラオケで自分のキーがすぐわかる

Subscriptions2
  • UtaKey PRO (Monthly)7 Days trial$2.991 Month
  • うたきー PRO(年額)7 Days trial$22.991 Year
One-time1
  • 広告削除2 variants$9.99

Questions

Is KaraLog free?
KaraLog is free to download, with in-app purchases available.
Is うたキー | カラオケで自分のキーがすぐわかる free?
うたキー | カラオケで自分のキーがすぐわかる is free to download, with in-app purchases available.
Do KaraLog or うたキー | カラオケで自分のキーがすぐわかる have ads?
Neither KaraLog nor うたキー | カラオケで自分のキーがすぐわかる shows ads.
Which is updated more often, KaraLog or うたキー | カラオケで自分のキーがすぐわかる?
KaraLog ships an update every 9 days, and うたキー | カラオケで自分のキーがすぐわかる every 3 days. Most recently, KaraLog was updated on November 10, 2026 and うたキー | カラオケで自分のキーがすぐわかる on November 12, 2026.

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