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Genius Jamtracks

Antonis Tsikandilakis · Music · Japan store
NOT IN TOP 100 HERE
View on App Store ↗ Instagram card Google Play version →
Revenue a month, worldwide EST
$467
Likely $156 to $1.4K
▼ 73.0% in 4 days
New ratings
+0
in 1 days, 385 in total
Rating
3.6 of 5
8 ratings in this store
Countries it ranks in
0
was 0 on Oct 19, 2026

Revenue

Estimated from the grossing charts of Oct 26, 2026 in the 53 countries we track, and ratings growth on the App Store.

EST. REVENUE / YEAR · WORLDWIDE
$5.6K
3.2 new ratings a month on average since launch
EST. LIFETIME DOWNLOADS
280 to 800
Estimated from ratings count
WHERE ITS USERS ARE · SHARE OF RATINGS
  • United States 182 ratings47%
  • United Kingdom 35 ratings9%
  • Germany 32 ratings8%
  • Canada 30 ratings8%
  • Italy 29 ratings8%
  • France 25 ratings6%
  • Spain 11 ratings3%
  • Australia 10 ratings3%
HOW SURE ARE WE
Not in any grossing chart, so this comes from ratings growth (3.2 new ratings a month on average since launch): revenue grows with new ratings, more slowly for apps that collect ratings fast. Tested on 418 apps with verified revenue: typically off by about 2 times, and big earners tend to come out low. Countries we don't track (and Google Play in China, which doesn't exist) aren't included, and neither are ads or web payments. Gross revenue before store fees.
RATINGS
8
AVG RATING
3.63
PRICE
¥2,500
AGE
10.2y
LAST UPDATE
122d ago
VERSION
12.3
SIZE
217 MB
AGE RATING
4+

Last 30 days

From our daily snapshots of every grossing chart and daily ratings counts.

DAYS IN A GROSSING CHART
2 / 30
COUNTRIES NOW
0 (was 0)
NEW RATINGS, LAST 1 DAYS
+0
EST. REVENUE A MONTH, DAILY · BOTH STORES EST
Show daily values
Sep 27, 2026not in a grossing chart
Sep 28, 2026not in a grossing chart
Sep 29, 2026not in a grossing chart
Sep 30, 2026not in a grossing chart
Oct 1, 2026not in a grossing chart
Oct 2, 2026not in a grossing chart
Oct 3, 2026not in a grossing chart
Oct 4, 2026not in a grossing chart
Oct 5, 2026not in a grossing chart
Oct 6, 2026not in a grossing chart
Oct 7, 2026not in a grossing chart
Oct 8, 2026not in a grossing chart
Oct 9, 2026not in a grossing chart
Oct 10, 2026not in a grossing chart
Oct 11, 2026not in a grossing chart
Oct 12, 2026not in a grossing chart
Oct 13, 2026not in a grossing chart
Oct 14, 2026not in a grossing chart
Oct 15, 2026not in a grossing chart
Oct 16, 2026not in a grossing chart
Oct 17, 2026not in a grossing chart
Oct 18, 2026not in a grossing chart
Oct 19, 2026not in a grossing chart
Oct 20, 2026$4K a month
Oct 21, 2026not in a grossing chart
Oct 22, 2026not in a grossing chart
Oct 23, 2026not in a grossing chart
Oct 24, 2026$1.1K a month
Oct 25, 2026not in a grossing chart
Oct 26, 2026not in a grossing chart
The same estimate as the headline, saved every day. Best rank Sep 27, 2026: not ranked. Now: not ranked.
RATINGS IN THE CORE COUNTRIES, DAILY
Show daily values
Oct 24, 2026385 ratings
Oct 25, 2026385 ratings
385 on Oct 24, 2026, 385 on Oct 25, 2026. New ratings track new downloads, even outside the charts.

Money and momentum

Measured from the store, not estimated.

WHAT IT CHARGES
No in-app purchases
Earns from its upfront price, ads or payments outside the store.
REVIEW MOMENTUM
0.1 reviews / week
  • Trendrising
  • Recent reviews average3.0 stars
  • Recent 1 and 2 star share37%
From the latest 43 written reviews, covering 3712 days.
RELEASE CADENCE
0 updates in 90 days
  • Typical gap between releases6 days
From the last 25 versions listed on the App Store.
RATING BREAKDOWN
8 ratings
5★50%
4★0%
3★25%
2★13%
1★13%

What users want

From the latest 43 reviews on the Japan App Store, Aug 27, 2016 to Jun 27, 2026: 37% are 1 or 2 stars. Open a theme to read what people wrote.

WHAT THEY COMPLAIN ABOUT · SHARE OF BAD REVIEWS
Crashes and freezes25%

4 of the 1 and 2 star reviews.

★★★★★ Please fix this it could be brilliant. Nothing worse than unreliable software.
★★★★★ The idea behind this app is great and I've enjoyed playing with it but it now keeps crashing :(
★★★★★ I can't use this app because every time I use it it crashes.
Price and subscription25%

4 of the 1 and 2 star reviews.

★★★★★ don't waste your time or your money
★★★★★ I'd suggest you not waste your time or money.
Bugs, things not working13%

2 of the 1 and 2 star reviews.

★★★★★ App crashes can't use ... don't waste your time or your money
★★★★★ However, not even 24 hours after I purchased it, the sound completely stopped working.
Login and account problems13%

2 of the 1 and 2 star reviews.

★★★★★ Please add an opt-out to the login-screen!
★★★★★ Was good now I just deleted it, back to IReal Pro no login hassles required.
Lost data, sync, backup13%

2 of the 1 and 2 star reviews.

★★★★★ Was good now I just deleted it, back to IReal Pro no login hassles required.
★★★★★ This app has gone backwards.
Wrong or poor results13%

2 of the 1 and 2 star reviews.

WHAT THEY ASK FOR
  • Please add an opt-out to the login-screen! 1★, May 5, 2026
  • Here is my feature request: let me set it to cue the bar at any interval. 5★, May 8, 2024
  • I wish that it were either audio unit extension AU or inter-app audio so that it can be used with the AUM mixer on iOS. 5★, Dec 4, 2022
  • I need a refund please. 1★, Nov 28, 2022
  • They are light years ahead, this app needs a lot of work if you are comparing it to iReal Pro. 1★, Nov 28, 2022
  • (Tip: You can now change a song you don't need and save this) 5★, Jan 8, 2022
  • I wish we could: Create loop points within changes Create our own changes Have prefab polyrhythms that flow together well, because most don't flow well and it's not that useable this way Tempo slider - going from 100… 3★, Mar 20, 2020
  • It would be nice if the changes were editable and an option was provided to save song settings when going to another song. 4★, Apr 4, 2017
WORDS THAT KEEP COMING UP IN BAD REVIEWS

Nothing stands out.

WHAT THEY LOVE · SHARE OF GOOD REVIEWS
Accurate, great results26%

5 of the 4 and 5 star reviews.

★★★★★ This app stands out because of the realistic tracks you can create without a subscription.
★★★★★ The app works great now and sounds killer!
★★★★★ Works perfectly for my needs.
Useful, it helps21%

4 of the 4 and 5 star reviews.

★★★★★ It is super useful for writing and arranging as well as playing through standard tunes.
★★★★★ A few suggestions: 1) Having an alphabet column displayed on either far side of the screen would make it easier to browse and quickly find songs beginning witha specific letter ( doable in the search field, but with a…
★★★★★ It has a great selection of real book songs built in, and a bunch of practice sequences. It would be nice if the changes were editable and an option was provided to save song settings when going to another song. The…
Fast11%

2 of the 4 and 5 star reviews.

★★★★★ Really enjoyed the editor for quick lead sheet ideas.
★★★★★ Fusion / Smooth Jazz Style
Fun, addictive11%

2 of the 4 and 5 star reviews.

★★★★★ I have enjoyed using Genius Jamtracks.
★★★★★ Really enjoyed the editor for quick lead sheet ideas.

Found by matching words and phrases in the reviews, not read by a person. A review can count toward more than one theme.

What users say

Latest reviews, Japan App Store.

★★★★★Jun 27, 2026
Great for practice!

This app stands out because of the realistic tracks you can create without a subscription. It even offers the ability to change rhythm and harmony along with transposition, tempo and key changes. I would like the app to transfer charts between devices, but it earns five stars as it is. Worthy of mention: I found a small glitch in using transposition and called it to the attention of the developer. I got an immediate response and the bug was quashed and in an updated version within days. Impressive!

★★★★★May 5, 2026
Now requires mandatory login

Former standalone use is now prohibited. Bought this app without mandatory data sharing. This is made worse, as a previous e-mail exchange lead to doubts wether the author knows or cares, what data protection really means. Please add an opt-out to the login-screen!

★★★★★Apr 20, 2026
Very Good

Great sounding Sounds a lot better than iReal

★★★★★Mar 21, 2026
Mandatory Login? No Thanks

Was good now I just deleted it, back to IReal Pro no login hassles required.

★★★★★Jan 28, 2026
Update broke some things

Several songs won’t play audio since this update. I thought it was just when I searched for a song but I’ve discovered that there are just random songs that no longer work.

★★★★★Jan 10, 2026
Developer Says No Subscription Coming

Correspondence from developer promises: NO SUBSCRIPTION coming after recent update. Seems shortsighted not to have include this in the updated App Store info. FYI, you can no longer access app until you give them your email and create an account. Update looks like a mostly polished GUI song browsing update, I’m not inherently seeing the reason for the necessary account creation. Will wait and see.

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Store screenshots

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App Store ads

Apple Search Ads this app ran in the last 90 days, from Apple's public ad repository.

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Growth research

Where this app is buying and earning its users. Each link opens pre filtered.

ASO keywords

Most repeated terms in the listing. Highlighted ones also appear in the title.

genius jamtracks8genius5jamtracks5jamtracks genius3

What's new in 12.3

楽器の移調機能を改善しました。選択した移調設定が、アプリを開くたびに正しく復元されるようになりました。

Released Sep 2, 2016. Current version shipped Jun 26, 2026.

Store description

ジャズを練習する新しい方法! 
Genius Jamtracks は、実際のトリオのように考え、演奏するジャズミュージシャンのためのプレイアロングアプリです。
驚くほどリアルなサウンドと感覚で、レパートリーを増やし、ジャズの語彙を広げ、ポリリズムをマスターするのに役立ちます。 Genius Jamtracks は "New Standards: 101 Lead Sheets by Women Composers" を発表しました。これは、Berklee Institute of Jazz and Gender Justice の創設者であり芸術監督である Terri Lyne Carrington によって指導された画期的な出版物です。 「Genius Jamtracks は間違いなく最高のプレイアロングアプリです! 特にピアノのボイシングは他のプレイアロングアプリよりも論理的でリアルです。 ベースとドラムは単なる反復的なパターンではなく、実際のジャズ言語を使用しています。また、バンドを予測不可能にして忙しくすることができるのも素晴らしいです。アルゴリズムから得られる実際のグループとの演奏にこれほど近いものはありません。強くお勧めします!」
~ Paul Bollenback 「ジャズミュージシャンが書いたようなアプリです。 ドラムとピアノは、ジャズのドラマーやピアニストが演奏するのとまったく同じです。 これを作るのは簡単な作業ではなかったに違いありません!」
~ Steve Beskrone * なぜこれが素晴らしい音を出すのか:
それはすべてダイナミクス、音符の持続時間、スペース、そしてフィーリングにあります。
Genius Jamtracks のトリオは、これらの要素のすべてに細心の注意を払い、練習体験をできるだけ本物に近づけています。 * 本物のスウィング感!
他のプレイアロングのロボット的な三連符は忘れてください。
テンポを変更すると、アプリは単に速くまたは遅く再生するだけでなく、スウィング感も変化します。 アプリはジャズの語彙を内面化し、マスターの実際のトランスクリプションに基づいて演奏することで、スウィングする方法を学びました。 * 実際のボイスリーディング!
設定に関係なく、再生ボタンを押すだけで、常にピアニストのボイスリーディングに同じ注意が払われ、ベーシストがあなたを伴奏するために美しいラインを作り出す同じ努力がなされます。 * Genius Jamtracks を使って自分の曲を作成でき、インターフェイスは簡単で直感的です。 * お気に入りのジャズスタンダードの楽譜を好きなように編集できます。 * お気に入りの曲のプレイリストを作成するオプション。 * カスタムフォントで、美しく読みやすいコードチャートが作れます。 * リズム部門:
簡単な伴奏から始めて、超人的なポリリズムをマスターするまで上達します!
特定のグループ、比率、ポリリズム、またはリズムのずれに焦点を当てます。 トリオ、または個々の楽器に、ポリリズミックなフレージングを導入する際に、要求した内容のみを含むように依頼できます。ただし、それがいつ、どのように使用されるかはわからないため、この機能は反射神経を鍛えるのにも役立ちますし、そのリズムをマスターするのにも役立ちます! * ハーモニックレベルセレクター:
トライアドから始めて、曲の高度な代替和音やリハーモナイズまで進みます。 * ボイシングセレクター:
新しいセレクターから直接、好みのボイシングタイプを選択します。 * リンクボタン:
曲が開くと、アプリは自動的に曲のスタイルに基づいて最適なボイシングを選択します。リンクがオフの場合、選択したボイシングタイプはデフォルトとして保存されます。 * タイム配置:
バラードやストレートアヘッドなスウィングが好きですか? トリオに、より強力な感覚または緩やかな感覚を与えましょう。 あなたのスキルを次のレベルに引き上げる準備はできましたか?

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