FMN Tester vs Clock Buddy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FMN Tester
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FM Factory Tool FM Factory Tool is a professional testing and management application designed for Find My Network accessory manufacturers, supporting production line testing, customer product demonstrations, and after-sales device handling. 【Core Features】 Multi-Protocol Device Scanning • Support for FMNA, FMDN, Nut, Nutale, HWTag protocols • Real-time Bluetooth device scanning with RSSI display • Quick filtering and target device localization UWB Ranging & Direction • Ultra-Wideband precision distance measurement • 3D spatial direction indicator with real-time arrow navigation • ARKit augmented reality support Device Configuration & Management • Automatic Serial Number, Token, and Extra Data writing • MFI Plan and Fast Pair device data synchronization • Production task tracking with PPID management Professional Testing Reports • Local SQLite database for test record storage • Data export and synchronization support • Complete production traceability 【Use Cases】 • Find My Network accessory production line testing • Bluetooth tracker factory testing • UWB device function validation • E-INK device function validation and demonstration • Third-party accessory compatibility testing • Customer product demonstrations and showcases • After-sales device diagnostics and handling
Clock Buddy
Easily track multiple world times directly on your Apple Watch. Customize city labels, abbreviations, and colors for quick identification. Choose between compact or dense complications for your watch face.
- Display multiple world times
- Customizable city labels and colors
- Rectangular watch face complications
- Compact and dense complication options
- Minute-by-minute time updates
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World Clock Buddy keeps the times you care about right on your Apple Watch. Add up to six cities, then check them from the watch app or from a rectangular complication on your watch face. Each city gets a clear label, airport-style abbreviation, and color, so you can spot London, New York, Tokyo, or home without doing the usual mental math. Choose the compact complication for a cleaner glance, or the dense one when you want more cities visible at once. Times update by the minute and stay easy to read, even when your wrist is only up for a second. Built for travelers, remote teams, long-distance friends, and anyone who just wants world time without opening a full app.
Screenshots
Verdict
The clearest difference is update cadence: Clock Buddy at every 4 days against FMN Tester's every 8 days. FMN Tester's advantage is iOS requirement (15.6 vs 26.0). 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.
FMN Tester ships an update every 8 days, Clock Buddy every 4 days. Both last shipped on October 31, 2026.
| Parameter | FMN Tester | Clock Buddy |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 8 days | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 10 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Beijing Zizai Technology Co.,Ltd. | Martian Code Oy |
In-app purchases
FMN Tester
No in-app purchases
Clock Buddy
No in-app purchases









