Comparison

Study Time Logger vs CCF Meter

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

Head to head
About

Study Time Logger

Boost concentration and manage your time effectively with a timer-based technique. This app helps you stay on track during study or work sessions, offering customizable timers and tools to review your progress and learn focus psychology.

Highlights
  • Customizable Pomodoro timers
  • Task categorization and time management
  • Visual progress review with graphs
  • Focus psychology tips and articles
  • Flexible timer and break durations
Features
Read full description

I have an exam coming up. A paper due this weekend. And honestly... I don't feel like doing anything. Deadlines are looming, tasks are piling up, and I just can't focus on work or study. Sounds familiar? You're not alone. We all go through these very human moments. But don’t worry! There’s a simple yet powerful technique designed to help you: the Pomodoro Technique. It helps boost your concentration, manage your study and work time, and build momentum using a timer. How it works: 1) Set a timer for how long you want to focus on studying or working. 2) Take a short break when the time ends. 3) Repeat. Sounds too simple? Try it — you’ll be surprised how well it works! This app is built on the Pomodoro Technique, refined with user feedback to help you stay on track, stay focused, and get things done. Key Features: 1 Customizable Pomodoro Timers - For work: 10, 25, 60 minutes - For breaks: 1, 5, 30 minutes - Set your own durations for maximum flexibility 2 Task Categorization and Time Management Track your study time and work sessions by: - Subject: English, Math, History, Physics... - Work type: Emails, Meetings, Writing, etc. - Study method: Reading, Listening, Memorizing, Note-taking - Other: Programming, Drawing, Practicing, Test prep, Meditation 3 Visual Progress Review Reflect on your focus patterns with helpful graphs: - "Nice, I stayed on track today." - "Hmm, hard to focus at home. I’ll try shorter sessions tomorrow." - "Focus is off today. A quick timer might help." 4 Focus Psychology Bite-sized tips and articles on: - Preventing smartphone distractions - Breaking focus-killing habits - The science of rest and how to use it wisely This app is for you if you're: - A student prepping for exams, quizzes, or assignments - A professional boosting productivity at work - A homemaker balancing house chores and personal time - A language learner working toward certification It's a small and simple app — just a repeating timer — but it’s made for those who care about focus, productivity, and making each day meaningful. We hope you’ll give it a try. It just might change the way you work and study! EULA (Legal Documents) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

CCF Meter

This app allows users to record and track chest compression fractions during CPR training. It displays real-time CCF, compression and pause times, and provides post-training analysis of interruptions. All training records are saved locally for review.

Highlights
  • Real-time CCF display
  • Record compression and pause times
  • Post-training interruption analysis
  • Save and review training history
  • Selectable operation methods
  • Configurable start recording option
Read full description

CCF Meterは、CPR(心肺蘇生)トレーニングのための記録アプリです。 胸骨圧迫をしている時間と中断している時間をタップで記録し、CCF(Chest Compression Fraction:CPR時間のうち胸骨圧迫が行われていた時間の割合)を表示します。 ■ できること ・CCFをリアルタイムに表示 ・CPR時間、圧迫時間、中断時間を表示 ・終了後に、中断回数・最長中断時間・タイムラインで振り返り ・トレーニングの記録を端末内に保存し、履歴で確認 ・操作方法は「タップ」と「長押し」から選択可能 ・開始と同時に圧迫の記録を始めるかどうかを設定可能 ■ こんな場面に ・シナリオ形式の蘇生トレーニングで、観察者やインストラクターが圧迫と中断の時間を記録 ・トレーニング後の振り返りで、中断がどこでどれだけあったかを共有 ・研修や自主練習での記録として ■ 計測方法について CCFは、画面を操作した時刻から計算しています。端末のセンサーで胸骨圧迫を検出するものではありません。表示される数値は、操作する人の操作に基づきます。 ■ プライバシー アカウント登録は不要です。記録は端末内にのみ保存され、外部に送信されません。広告はありません。 ■ ご注意 CCF Meterは、トレーニングおよび教育を目的としたアプリです。医療機器ではありません。実際の救急対応、診断、治療、臨床上の判断には使用しないでください。

Screenshots

Study Time Logger4 screens
CCF Meter4 screens

Verdict

The call

The clearest difference is price: Study Time Logger at Free against CCF Meter's $5.99. Study Time Logger also leads on device support (4 vs 1). CCF Meter's advantage is in-app purchases (none vs 7). On review sentiment, update cadence, ads 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

Study Time Logger is free to download; CCF Meter costs $5.99 up front. Study Time Logger sells 7 in-app purchases, starting at $3.49 per month. CCF Meter asks for nothing beyond the download.

UpkeepUpdate frequency

Study Time Logger ships an update fortnightly, CCF Meter every 9 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Study Time Logger versus CCF Meter: the parameters behind the verdict, then further details
ParameterStudy Time LoggerCCF Meter
PriceFree — better$5.99
Rating4.8 (119 ratings) — better—
Positive reviews92.6% of reviews100.0% of reviews — better
Number of ratings119 — better—
Update frequencyFortnightlyEvery 9 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size50 MB37 MB
Age rating4+4+
Developerbondavi Inc.Sogo Kamimura

Customer experience

Study Time Logger

All ratings118 ratings
Positive96.6%
Neutral1.7%
Negative1.7%
Written reviews68 reviews
Positive92.6%
Neutral2.9%
Negative4.4%

CCF Meter

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

7 purchases

Study Time Logger

Subscriptions3
  • Dramatically timer pause$3.491 Month
  • 応援コメントがラップ調 |無駄機能$6.991 Month
  • 応援コメントが名言風 |無駄機能$6.991 Month
One-time4
  • 無駄機能|ドラマティックに一時停止$2.99
  • Unnecessarily Detailed Data$5.99
  • 無駄機能|応援コメントが名言風$5.99
Show 1 more
  • 無駄機能|応援コメントがラップ調$5.99
None

CCF Meter

No in-app purchases

Questions

Is Study Time Logger free?
Study Time Logger is free to download, with in-app purchases available.
Is CCF Meter free?
CCF Meter costs $5.99, with no in-app purchases.
Do Study Time Logger or CCF Meter have ads?
Neither Study Time Logger nor CCF Meter shows ads.
Which is updated more often, Study Time Logger or CCF Meter?
Study Time Logger ships an update fortnightly, and CCF Meter every 9 days. Most recently, Study Time Logger was updated on November 6, 2026 and CCF Meter on October 31, 2026.

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