Comparison

FMN Tester vs Clock Buddy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

FMN Tester

Features
Read full description

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

About

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.

Highlights
  • Display multiple world times
  • Customizable city labels and colors
  • Rectangular watch face complications
  • Compact and dense complication options
  • Minute-by-minute time updates
Features
Read full description

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

FMN Tester4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

FMN Tester ships an update every 8 days, Clock Buddy every 4 days. Both last shipped on October 31, 2026.

Scorecard2 real differences · 8 level
FMN Tester versus Clock Buddy: the parameters behind the verdict, then further details
ParameterFMN TesterClock Buddy
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 8 daysEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, Apple Watch
Requires iOS15.6 — better26.0
Further details — not scored
Size10 MB1 MB
Age rating4+4+
DeveloperBeijing Zizai Technology Co.,Ltd.Martian Code Oy

In-app purchases

None

FMN Tester

No in-app purchases

None

Clock Buddy

No in-app purchases

Questions

Is FMN Tester free?
FMN Tester is free to download, with no in-app purchases.
Is Clock Buddy free?
Clock Buddy is free to download, with no in-app purchases.
Do FMN Tester or Clock Buddy have ads?
Neither FMN Tester nor Clock Buddy shows ads.
Which is updated more often, FMN Tester or Clock Buddy?
FMN Tester ships an update every 8 days, and Clock Buddy every 4 days. Most recently, FMN Tester was updated on October 31, 2026 and Clock Buddy on October 31, 2026.

Other comparisons