Koku vs KEEPit
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Koku
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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 (ε») is the Japanese word for a moment of time.
KEEPit
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KEEPit is a private, minimal self-chat for notes, reminders, daily logs, and the small things you want to keep. Write to yourself in one simple stream each day. Every message is time-stamped and kept in order, giving thoughts, reminders, and moments one calm place to go. HOW IT WORKS Write whenever something comes up. Move through past days with a simple calendar. Pick any date and jump directly to that dayβs messages, like opening an old self-chat without the noise of a messenger. FIND THINGS AGAIN Search by keyword to find past notes, reminders, and messages when your memory starts to blur. PRIVATE BY DEFAULT No login. No account. No cloud. Everything stays on this device only. KEEPit is for people who already message themselves and want a quieter, more intentional place to keep it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Koku at none against KEEPit's 2. 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 Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. KEEPit sells 2 in-app purchases, starting at $3.99 per month. Koku asks for nothing beyond the download.
| Parameter | Koku | KEEPit |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 days | β |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, Apple Watch | iPhone, iPod |
| Requires iOS | 26.4 | 15.0 β better |
| Further details β not scored | ||
| Size | 4 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Rodolfo Alberto Lopez Terriquez | Seunghoon Baek |
In-app purchases
Koku
No in-app purchases
KEEPit
- Monthly$3.991 Month
- Yearly$34.991 Year





