Koku vs DwellLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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 (刻) is the Japanese word for a moment of time.
DwellLog
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Walk the property. Record what you can see, then seal it before it drifts. DwellLog turns a home walkthrough into a dated, tamper-evident record. Pick an area. Name the component and a location you can return to. Write what is directly observable, rate the condition, and seal the entry. Each seal is a SHA-256 digest, so a later reader can tell whether a record or its photo changed after you saved it. Work the eight survey areas: site and drainage, exterior envelope, structure, water and plumbing, electrical, climate and mechanical, interior, and life safety. Add a measurement when you have one. Note the weather, the viewing position, and anything you could not reach. Revisit the same location next season. DwellLog keeps the original and files your update as a superseding record instead of overwriting it, then shows what is new, improved, or worse. Open a case when something needs action. State the risk in a sentence, set a next step, give it a target date, and link the evidence. Close it with a dated event, never a silent edit. Log the furnace and water heater. Photograph the serial plate. Record brands, models, warranty dates, and cost. Add recurring maintenance from the catalog, log each service with its provider and price, and read the annual cost report. Share a readable evidence packet and a machine-readable manifest of record and photo digests with a buyer, tenant, contractor, or your own files. Export runs only after every seal and supersession link passes. DwellLog is a recordkeeping tool, not an inspection. It does not diagnose defects, determine cause, or certify compliance. Keep every record yours: no account, no server sync, no third-party analytics.
Screenshots
Verdict
The clearest difference is price: Koku at Free against DwellLog's $1.99. Koku also leads on update cadence (every 3 days vs every 2 weeks). DwellLog's advantage is iOS requirement (17.0 vs 26.4). On ads, in-app purchases 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
Koku is free to download; DwellLog costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Koku ships an update every 3 days, DwellLog every 2 weeks. The most recent releases landed on October 11, 2026 and October 6, 2026 respectively.
| Parameter | Koku | DwellLog |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 3.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 26.4 | 17.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Rodolfo Alberto Lopez Terriquez | Robert Corbin |
In-app purchases
Koku
No in-app purchases
DwellLog
No in-app purchases









