Comparison

カスタムアラーム vs Focus Timer シンプルなタイマー

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

Head to head

Focus Timer シンプルなタイマー

シンプルで使いやすいフォーカスタイマー

Free

🔧 Utilities

No ratingsView app →

About

カスタムアラーム

Features

Read full description

朝が苦手な方のための、こだわり派アラームアプリです。【主な機能】・繰り返しアラーム（曜日・日付指定）・フォルダで複数アラームを管理・スヌーズ間隔をカスタマイズ・30秒リピートで二度寝防止（Pro）・3種類のテーマで着せ替えシンプルな操作で、細かく設定できます。

About

Focus Timer シンプルなタイマー

Features

Read full description

Focus Timer - Boost Your Productivity A simple and easy-to-use timer app. Perfect for focused work, studying, and the Pomodoro Technique. Key Features: - Simple Mode: Countdown timer - Interval Mode: Pomodoro timer with focus and break periods - Group Mode: Share timers with friends and focus together - Preset Function: One-tap access to frequently used time settings - Custom Sounds: Choose your preferred notification sound - Screen Always On: Screen stays on while the timer is running

Screenshots

カスタムアラーム4 screens

Focus Timer シンプルなタイマー1 screens

Verdict

The call

The clearest difference is in-app purchases: Focus Timer シンプルなタイマー at none against カスタムアラーム's 1. Focus Timer シンプルなタイマー also leads on update cadence (every 3 days vs every 4 weeks). カスタムアラーム's advantage is ads (none vs shown). On price, device support and iOS requirement 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. カスタムアラーム sells 1 one-off in-app purchase. Focus Timer シンプルなタイマー asks for nothing beyond the download.

UpkeepUpdate frequency

カスタムアラーム ships an update every 4 weeks, Focus Timer シンプルなタイマー every 3 days. The most recent releases landed on November 5, 2026 and November 9, 2026 respectively.

Scorecard3 real differences · 3 level

カスタムアラーム versus Focus Timer シンプルなタイマー: the parameters behind the verdict, then further details
Parameter	カスタムアラーム	Focus Timer シンプルなタイマー
Price	Free	Free
Update frequency	Every 4 weeks	Every 3 days — better
Ads	No — better	Yes
In-app purchases	Yes	No — better
Devices	iPhone, iPod	iPhone, iPad, iPod — better
Requires iOS	15.1	15.1
Further details — not scored
Size	39 MB	36 MB
Age rating	4+	4+
Developer	TAKUTO YOSHINO	Waffle, LCC

In-app purchases

1 purchases

カスタムアラーム

One-time1

Pro Plan$2.99

None

Focus Timer シンプルなタイマー

No in-app purchases

Questions

Is カスタムアラーム free?

カスタムアラーム is free to download, with in-app purchases available.

Is Focus Timer シンプルなタイマー free?

Focus Timer シンプルなタイマー is free to download, with no in-app purchases.

Do カスタムアラーム or Focus Timer シンプルなタイマー have ads?

Focus Timer シンプルなタイマー shows ads; カスタムアラーム does not.

Which is updated more often, カスタムアラーム or Focus Timer シンプルなタイマー?

カスタムアラーム ships an update every 4 weeks, and Focus Timer シンプルなタイマー every 3 days. Most recently, カスタムアラーム was updated on November 5, 2026 and Focus Timer シンプルなタイマー on November 9, 2026.