Comparison

Kaiteki vs B with U

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

Head to head
About

Kaiteki

Stream Japanese radio and TV channels from abroad. Stay connected to local news and programs with customizable favorite channel registration. Listen anytime, anywhere.

Highlights
  • Stream Japanese radio
  • Stream Japanese TV
  • For overseas residents
  • Favorite channel registration
  • Listen to local news
  • Listen to programs
Features
Read full description

Kaitekiは、海外在住、生活、出張、旅行者向けに日本のラジオ、テレビを受信するアプリです。 ユーザーはお気に入りのチャンネルを登録でき、いつでもどこでも、地元のニュースや番組を聴くことができます。

About

B with U

Receive direct messages from artists, enjoy exclusive digital photo books, and collect event-specific stamps. Stay updated with artist schedules and access behind-the-scenes content. Get a digital membership card and track your attendance history.

Highlights
  • Direct artist messages
  • Exclusive digital photo books
  • Digital membership cards
  • Event attendance history & stamps
  • Artist schedules & updates
  • Behind-the-scenes video content
Features
Read full description

【主な機能】 ◆ アーティストからメッセージが届く!「Poppin'」 ・Poppin'では、応援しているアーティストからダイレクトにメッセージが届きます。 ◆ ファンクラブ内限定フォトブック「Library」 ・ここでしか見られない撮り下ろし写真や、ライブ等のオフショットをデジタルフォトブックとして楽しめます。 ・本棚のように並ぶBookからお気に入りの写真をいつでも手軽にお楽しみいただけます。 ◆ メンバー限定の会員証発行 ・メンバーになった方にはもれなくアプリ内でデジタル会員証をプレゼント! ・イベントなどに応じて新しいデザインを入手でき、気に入ったものに着せ替えができます。 ◆ ライブやイベント参加時の来場履歴を思い出に「Check In」 ・ライブなどの会場にご来場いただくと、イベント限定のスタンプを獲得できます。 ・イベントに訪れた思い出や履歴を、スタンプと共に一覧で振り返ることができます。 ◆ アーティストの情報をいち早くチェック「Calendar」 ・アーティストごとに開催予定のライブ情報や新曲リリース、番組出演などのスケジュールを確認できます。 ◆ ここでしか見られない限定コンテンツ ・ライブの舞台裏映像や限定企画動画など、普段は見られないスペシャルなコンテンツを多数配信。 ・アーティストの日常のブログやオフショット、限定の生配信などもお届けします。 B with U / BMSG / BE:FIRST / MAZZEL / STARGLOW / SKY-HI / Novel Core / Aile The Shota / REIKO / edhiii boi / Ayumu Imazu / HANA / ふみの / B-Town

Screenshots

Kaiteki4 screens
B with U4 screens

Verdict

The call

The clearest difference is rating: B with U at 5.0 against Kaiteki's 2.7. B with U also leads on review sentiment (28% vs 0%) and update cadence (every 11 days vs every 6 weeks). Kaiteki's advantage is ratings volume (6 vs 2). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

B with U holds the better App Store score, 5.0 against 2.7. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews point the same way: 0% of Kaiteki's written reviews are positive against 28% of B with U's.

UpkeepUpdate frequency

Kaiteki ships an update every 6 weeks, B with U every 11 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

Scorecard4 real differences · 6 level
Kaiteki versus B with U: the parameters behind the verdict, then further details
ParameterKaitekiB with U
PriceFreeFree
Rating2.7 (6 ratings)5.0 (2 ratings) — better
Positive reviews0.0% of reviews28.3% of reviews — better
Number of ratings6 — better2
Update frequencyEvery 6 weeksEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size83 MB95 MB
Age rating4+4+
DeveloperKAITEKI TECH CO.,LIMITED株式会社BMSG

Customer experience

Kaiteki

All ratings6 ratings
Positive16.7%
Neutral50.0%
Negative33.3%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

B with U

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews53 reviews
Positive28.3%
Neutral17.0%
Negative54.7%

In-app purchases

None

Kaiteki

No in-app purchases

None

B with U

No in-app purchases

Questions

Is Kaiteki free?
Kaiteki is free to download, with no in-app purchases.
Is B with U free?
B with U is free to download, with no in-app purchases.
Which has better reviews, Kaiteki or B with U?
B with U is rated higher. Kaiteki averages 2.7 out of 5 from 6 ratings, while B with U averages 5.0 from 2 ratings.
Do Kaiteki or B with U have ads?
Neither Kaiteki nor B with U shows ads.
Which is updated more often, Kaiteki or B with U?
Kaiteki ships an update every 6 weeks, and B with U every 11 days. Most recently, Kaiteki was updated on November 3, 2026 and B with U on November 4, 2026.

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