JJY Simulator vs CASIO WATCH+
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
JJY Simulator
This utility app simulates standard radio waves used by Japanese radio-controlled clocks. It outputs a 13.3kHz audio signal to synchronize your clock, allowing you to manually set the time.
- Simulates JJY standard radio waves
- Outputs 13.3kHz audio signal
- Synchronizes radio-controlled clocks
- Uses 40kHz for time adjustment
- Requires earphone connection
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日本で市販されている電波時計をiPhoneで合わせるユーティリティです。 日本の電波時計の基準局(JJY)で使用される標準電波を模擬した信号を、13.3kHzの音声として出力し、3倍高調波(40kHz)を利用して時刻を合わせます。 1. イヤホンをiPhoneのイヤホンジャックに接続し、電波時計のすぐそばに置きます。 2. 音量を最大に設定します。 3. 「音声信号を出力」をオンにします。 4. 電波時計を強制受信モードにし、時刻が合うまで数分間待ちます。
CASIO WATCH+
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.
- Bluetooth v4.0 connectivity
- Mobile Link functions
- Simplified watch operations
- iPhone integration
- Remote control via phone screen
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●Description This is the basic application for connecting and communicating with a Bluetooth(R) v4.0 enabled CASIO watch. Pairing your watch with an iPhone enables use of a variety of different Mobile Link functions that greatly enhance the iPhone experience. The CASIO WATCH+ app also simplifies certain watch operations by letting you perform them on your phone screen. Visit the website below for details. EQB-500, EQB-510, ECB-500, EQB-600, EQB-700, EQB-501, EQB-800, EQB-900 http://www.edifice-watches.com/bs/ Applicable Watches: EQB-500, EQB-510, ECB-500, EQB-600, EQB-700, EQB-501, EQB-800, EQB-900, SHB-100, SHB-200 *Some watches unavailable in your region may be displayed in the application. Continued use of GPS running in the background can dramatically decrease battery life.
Screenshots
Verdict
The clearest difference is review sentiment: JJY Simulator at 68% against CASIO WATCH+'s 18%. JJY Simulator also leads on rating (4.2 vs 2.9) and iOS requirement (8.0 vs 12.0). CASIO WATCH+'s advantage is update cadence (monthly vs every 66 months). On price, ratings volume, ads and in-app purchases 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.
JJY Simulator holds the better App Store score, 4.2 against 2.9. Both are backed by a comparable volume of ratings — 18 and 44 respectively. Written reviews point the same way: 68% of JJY Simulator's written reviews are positive against 18% of CASIO WATCH+'s.
JJY Simulator ships an update every 66 months, CASIO WATCH+ monthly. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.
| Parameter | JJY Simulator | CASIO WATCH+ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (18 ratings) — better | 2.9 (44 ratings) |
| Positive reviews | 68.1% of reviews — better | 17.7% of reviews |
| Number of ratings | 18 | 44 — better |
| Update frequency | Every 66 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 8.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 1 MB | 69 MB |
| Age rating | 4+ | 4+ |
| Developer | NeoCat | CASIO COMPUTER CO., LTD. |
Customer experience
JJY Simulator
CASIO WATCH+
Bugs and requests
JJY Simulator
Not enough reviews yet to summarise bugs or requests.
CASIO WATCH+
Reported bugs
4 issues- Compatibility issues with iOS updates
- Pairing problems with iPhone 6/6s/7
- Sync failures and connection drops
- Watch settings not transferring properly
Requested features
4 requests- Show watch battery status
- Add more world time cities
- Improve phone finder functionality
- Allow more control over alarms/timers
In-app purchases
JJY Simulator
No in-app purchases
CASIO WATCH+
No in-app purchases
Questions
Is JJY Simulator free?
Is CASIO WATCH+ free?
Which has better reviews, JJY Simulator or CASIO WATCH+?
Do JJY Simulator or CASIO WATCH+ have ads?
Which is updated more often, JJY Simulator or CASIO WATCH+?
Other comparisons
