Comparison

Koku vs KEEPit

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

Head to head
About

Koku

This app helps you focus on tasks with customizable work and rest intervals. It offers a simple, distraction-free interface and integrates with your home screen and Apple Watch for easy access and control. Enjoy deep work without accounts, streaks, or subscriptions.

Highlights
  • Customizable focus and rest sessions
  • Classic Pomodoro rhythm option
  • Home Screen widget for quick access
  • Live Activities on lock screen
  • Apple Watch companion app
  • Minimalist, distraction-free design
Features
Read full description

Koku is a focus timer for deep work. Focus. Rest. Repeat. Set your own session lengths or use the classic rhythm - twenty-five minutes of focus, five minutes of rest, a longer break every four sessions. Each minute is a dot. Watch them fill. - No accounts. - No streaks. - No subscriptions. Just time, and the work in front of you. Add Koku to your Home Screen for quick access - start, pause, and skip sessions right from the widget. Keep the timer visible on your lock screen with Live Activities. Koku also includes an Apple Watch companion app that works with the iPhone app, so you can check your timer and control sessions from your wrist. Designed for iPhone, with an Apple Watch companion. Light and dark mode. Works in any language. Koku (刻) is the Japanese word for a moment of time.

About

KEEPit

Read full description

Just say it. To yourself. KEEPit is a private, minimal self-chat for notes, thoughts, daily logs, and the small things you want to keep. Write to yourself in one simple stream each day. Your messages stay in order, giving ideas, details, and moments one calm place to go. WRITE WHENEVER SOMETHING COMES UP Capture a passing thought, leave yourself a note, or write about your day. No titles to choose or folders to organize. Open KEEPit and pick up where you left off. RETURN TO PAST DAYS Move through your history with a simple calendar. Choose a date to open that day’s messages, then move between days or return to today. Color-mark dates to make certain days easier to find. FIND THINGS AGAIN Search by keyword when you remember what you wrote but not when. Tap a result to return to the message in its original stream. PRIVATE BY DEFAULT No login. No account. No cloud sync. Your entries are stored on your device. Your entries may be included in iCloud Backup, depending on your backup settings, and restored when you set up an iPhone from that backup. KEEP WRITING. RETURN WHEN YOU NEED. Write for free, with access to today’s messages and your most recent past day with entries. Subscribe monthly or yearly for full calendar access and keyword search. KEEPit is for people who already message themselves and want a quieter place to keep it. Subscriptions renew automatically unless canceled. Manage or cancel your subscription in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Koku4 screens
KEEPit4 screens

Verdict

The call

The clearest difference is in-app purchases: Koku at none against KEEPit's 2. Koku also leads on update cadence (every 3 days vs every 3 weeks). KEEPit's advantage is iOS requirement (15.0 vs 26.4). On price, ads 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. KEEPit sells 2 in-app purchases, starting at $3.99 per month. Koku asks for nothing beyond the download.

UpkeepUpdate frequency

Koku ships an update every 3 days, KEEPit every 3 weeks. The most recent releases landed on October 11, 2026 and October 21, 2026 respectively.

Scorecard3 real differences · 6 level
Koku versus KEEPit: the parameters behind the verdict, then further details
ParameterKokuKEEPit
PriceFreeFree
Rating3.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, Apple WatchiPhone, iPod
Requires iOS26.415.0 — better
Further details — not scored
Size10 MB5 MB
Age rating4+4+
DeveloperRodolfo Alberto Lopez TerriquezSeunghoon Baek

In-app purchases

None

Koku

No in-app purchases

2 purchases

KEEPit

Subscriptions2
  • Monthly$3.991 Month
  • Yearly$34.991 Year

Questions

Is Koku free?
Koku is free to download, with no in-app purchases.
Is KEEPit free?
KEEPit is free to download, with in-app purchases available.
Do Koku or KEEPit have ads?
Neither Koku nor KEEPit shows ads.
Which is updated more often, Koku or KEEPit?
Koku ships an update every 3 days, and KEEPit every 3 weeks. Most recently, Koku was updated on October 11, 2026 and KEEPit on October 21, 2026.

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