TopMFF vs FMN Tester
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TopMFF
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The TopMFF is the solution for memory expansion on iOS device.
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
Screenshots
Verdict
The clearest difference is update cadence: FMN Tester at every 8 days against TopMFF's every 3 weeks. TopMFF's advantage is iOS requirement (12.1 vs 15.6). 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.
TopMFF ships an update every 3 weeks, FMN Tester every 8 days. The most recent releases landed on October 9, 2026 and October 28, 2026 respectively.
| Parameter | TopMFF | FMN Tester |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.1 — better | 15.6 |
| Further details — not scored | ||
| Size | 21 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | TOYOU CO.,LTD | Beijing Zizai Technology Co.,Ltd. |
In-app purchases
TopMFF
No in-app purchases
FMN Tester
No in-app purchases
