GMV Sync vs Koku
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GMV Sync
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For current users of GMV Sync: This is the mobile version of Sync dispatch software for transit agencies in the United States. Transit supervisors keep operations moving—coordinating with drivers, responding to incidents, and making real-time decisions to ensure efficiency and safety. Now, with GMV Sync supervisors finally have a powerful tool designed just for them. Key Features: • Live GPS & Route Monitoring: Instantly view active buses, track routes in real time, and check vehicle assignments to make informed decision on the go • Map View and List view: Monitor active buses in either view, and use filter pills to see emergency status right away • Bus communication: Communicate between the dispatch office, other supervisors, and bus drivers while on the road or away from the office Sync Mobile empowers supervisors to monitor systems, respond to issues, and manage teams from anywhere. No longer tied to a desk, supervisors have the flexibility and oversight they need—right in their pocket. Built by GMV, Sync Mobile is part of the trusted Sync platform, created in collaboration with real-world agencies to meet the everyday challenges of transit operations.
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 (刻) is the Japanese word for a moment of time.
Screenshots
Verdict
The clearest difference is update cadence: Koku at every 3 days against GMV Sync's every 2 months. GMV Sync's advantage is iOS requirement (16.4 vs 26.4). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
GMV Sync ships an update every 2 months, Koku every 3 days. The most recent releases landed on September 20, 2026 and July 22, 2026 respectively.
| Parameter | GMV Sync | Koku |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 16.4 — better | 26.4 |
| Further details — not scored | ||
| Size | 67 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Syncromatics | Rodolfo Alberto Lopez Terriquez |
In-app purchases
GMV Sync
No in-app purchases
Koku
No in-app purchases





