# KD Serials vs FMO

The clearest difference is price: KD Serials at Free against FMO's $0.99. KD Serials also leads on iOS requirement (9.0 vs 15.0). FMO's advantage is update cadence (every 2 weeks vs every 4 weeks). On ads, in-app purchases and device support there is nothing between them.

KD Serials is free to download; FMO costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

KD Serials ships an update every 4 weeks, FMO every 2 weeks. The most recent releases landed on October 17, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KD Serials | FMO |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 2 weeks** |
| Monetization | — | Paid |
| Size | 39 MB | 10 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Junce Instruments Co., Ltd.](https://appshunter.io/developer/1535583983) | [峰 于](https://appshunter.io/developer/6772845425) |

## What reviewers say

### KD Serials

[App page](https://appshunter.io/ios/app/kd-serials/id1576490437)

**Features:** macOS Compatibility

**In-app purchases:** none


### FMO

[App page](https://appshunter.io/ios/app/fmo-dashboard/id6772919070)

This real-time dashboard and contact log app organizes amateur radio FMO device information into a mobile-friendly interface. It helps users quickly understand network activity during shifts, listening, and reviewing logs. Features include a live dashboard, contact logging, historical contact lookup, call sign voice broadcasting, and multi-address management.

**Highlights:** Real-time dashboard with current activity, Contact log with import and sync, Historical contact lookup, Call sign voice broadcasting, Multi-address management, Data import, sync, backup, and export

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KD Serials free?

KD Serials is free to download, with no in-app purchases.

### Is FMO free?

FMO costs $0.99, with no in-app purchases.

### Do KD Serials or FMO have ads?

Neither KD Serials nor FMO shows ads.

### Which is updated more often, KD Serials or FMO?

KD Serials ships an update every 4 weeks, and FMO every 2 weeks. Most recently, KD Serials was updated on October 17, 2026 and FMO on October 25, 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.*