# CITIZEN Eco vs WaveClock

The clearest difference is update cadence: WaveClock at every 4 days against CITIZEN Eco's every 5 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CITIZEN Eco ships an update every 5 months, WaveClock every 4 days. The most recent releases landed on September 25, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | CITIZEN Eco | WaveClock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 days** |
| Monetization | Free | — |
| Size | 67 MB | 33 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CITIZEN WATCH CO.,LTD](https://appshunter.io/developer/434806605) | [Tal Shukrun](https://appshunter.io/developer/1594409314) |

## What reviewers say

### CITIZEN Eco

[App page](https://appshunter.io/ios/app/citizen-eco-drive-bluetooth-s/id1268478800)

This app connects your smartphone to compatible watches, allowing you to sync time, set alarms, and receive notifications for calls and messages. It also features world time settings and a light level indicator for the watch's power source.

**Highlights:** Automatic time synchronization, World time settings, Call and message notifications, Customizable alarms, Light level indicator, Smartphone search function, Link loss alerts

**Features:** macOS Compatibility

**In-app purchases:** none


### WaveClock

[App page](https://appshunter.io/ios/app/waveclock/id6742221942)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CITIZEN Eco free?

CITIZEN Eco is free to download, with no in-app purchases.

### Is WaveClock free?

WaveClock is free to download, with no in-app purchases.

### Do CITIZEN Eco or WaveClock have ads?

Neither CITIZEN Eco nor WaveClock shows ads.

### Which is updated more often, CITIZEN Eco or WaveClock?

CITIZEN Eco ships an update every 5 months, and WaveClock every 4 days. Most recently, CITIZEN Eco was updated on September 25, 2026 and WaveClock on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*