# CASIO WATCH+ vs CITIZEN Eco

The clearest difference is update cadence: CASIO WATCH+ at monthly against CITIZEN Eco's every 5 months. CASIO WATCH+ also leads on review sentiment (18% vs 0%) and iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

CASIO WATCH+ ships an update monthly, CITIZEN Eco every 5 months. The most recent releases landed on November 11, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | CASIO WATCH+ | CITIZEN Eco |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (44 ratings)](https://appshunter.io/ios/app/casio-watch-plus/id760165998/reviews)** | — |
| Number of ratings | **44** | — |
| Positive reviews | **17.8% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 months |
| Monetization | Free | Free |
| Size | 69 MB | 67 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CASIO COMPUTER CO., LTD.](https://appshunter.io/developer/456569836) | [CITIZEN WATCH CO.,LTD](https://appshunter.io/developer/434806605) |

## What reviewers say

### CASIO WATCH+

[App page](https://appshunter.io/ios/app/casio-watch-plus/id760165998)

Connect your compatible CASIO watch to your iPhone via Bluetooth to unlock enhanced Mobile Link functions. This application simplifies watch operations by allowing you to control them from your phone screen, enriching your overall experience.

**Highlights:** Bluetooth v4.0 connectivity, Mobile Link functions, Simplified watch operations, iPhone integration, Remote control via phone screen

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Works well with iPhone 6/6s
- 👍 Easy to use interface
- 👍 Able to sync watch settings
- 👍 Helpful support for clearing pairing info

**What reviewers complain about**

- 🐛 Connectivity issues with newer iPhones
- 🐛 App crashes frequently
- 🐛 Fails to connect to watch
- 🐛 Unreliable Bluetooth connection
- 🐛 Time/date sync problems

**Reported bugs**

- Compatibility issues with iOS updates
- Pairing problems with iPhone 6/6s/7
- Sync failures and connection drops
- Watch settings not transferring properly

**Requested features**

- Show watch battery status
- Add more world time cities
- Improve phone finder functionality
- Allow more control over alarms/timers


### 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


## Frequently asked questions

### Is CASIO WATCH+ free?

CASIO WATCH+ is free to download, with no in-app purchases.

### Is CITIZEN Eco free?

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

### Do CASIO WATCH+ or CITIZEN Eco have ads?

Neither CASIO WATCH+ nor CITIZEN Eco shows ads.

### Which is updated more often, CASIO WATCH+ or CITIZEN Eco?

CASIO WATCH+ ships an update monthly, and CITIZEN Eco every 5 months. Most recently, CASIO WATCH+ was updated on November 11, 2026 and CITIZEN Eco on November 4, 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.*