HamAlert vs ST
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HamAlert
Receive instant push notifications for desired amateur radio contacts. Filter alerts by various criteria like callsign, band, mode, and location. Stay updated on DX spots from multiple sources.
- Push notifications for desired stations
- Filter spots by DXCC, callsign, and location
- Support for Reverse Beacon Network, SOTAwatch, DX cluster, PSK Reporter
- Filter by band, mode, and time
- Filter by spotter callsign and DXCC
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This app is a companion to the HamAlert web site (hamalert.org) and lets you receive push notifications from HamAlert. HamAlert is a system that allows amateur radio operators to get notifications when a desired station appears on the DX cluster, the Reverse Beacon Network, SOTAwatch, POTA, WWFF Spotline, or PSK Reporter. Spots can be filtered by various criteria, including: • DXCC (both actual and callsign home DXCC) • Callsign • Island reference • Summit reference • Park reference • CQ zone • Continent • Band • Mode • Time and days of week • Source • Spotter callsign and DXCC
ST
This app converts photos and images into a format compatible with D-STAR transceivers for the Share Picture function. Users can crop images, add text like call signs, and transfer them wirelessly or via Bluetooth to supported transceivers.
- Image conversion for D-STAR Share Picture
- Image cropping
- Add text (call signs)
- Wireless transfer to transceiver
- Bluetooth transfer to transceiver
- Save cropped image as file
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The ST-4001I is an application to crop an image used for the Share Picture function of a D-STAR transceiver, and transfers it to the transceiver. ・Photos taken, or photos/images saved on the iPhone and iPad can be converted into the format used for the Share Picture function of the D-STAR transceiver. ・You can crop the image and enter text such as a call sign. ・The cropped image can be transferred through a network to the D-STAR transceiver. ・The cropped image can be transferred through a network or using Bluetooth to the D-STAR transceiver. ・You can also save the cropped image as a file. Refer to the INSTRUCTIONS for details. Device requirements: iOS12 or later Supported transceiver (As of July 2024) Transceivers that can transfer via Bluetooth Icom ID-52A/E Icom ID-52A/E PLUS Transceivers that can transfer via network Icom IC-705 Icom IC-905 Icom IC-9700* *Firmware version 1.20 or higher NOTE • Icom does not guarantee that the ST-4001I works on all iPhone and iPad. It may not work properly, depending on the OS version, installed applications, or other reasons. • The transceiver and iPhone and iPad must be connected to the same network to transfer an image to a transceiver through a network. • Bluetooth LE is used to connect to a transceiver using Bluetooth. Transferring an image may take some time due to a slow data transfer rate.
Screenshots
Verdict
The clearest difference is rating: ST at 5.0 against HamAlert's 4.0. ST also leads on iOS requirement (12.0 vs 15.6). HamAlert's advantage is update cadence (every 5 months vs every 27 months) and review sentiment (67% vs 50%). On price, ads, in-app purchases and monetization model 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.
ST holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: HamAlert has 34 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 67% of HamAlert's written reviews are positive against 50% of ST's, so the app with the better star average is not the one people write more warmly about.
HamAlert ships an update every 5 months, ST every 27 months. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.
| Parameter | HamAlert | ST |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (34 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 66.7% of reviews — better | 50.0% of reviews |
| Number of ratings | 34 — better | 4 |
| Update frequency | Every 5 months — better | Every 27 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 12.0 — better |
| Further details — not scored | ||
| Size | 11 MB | 12 MB |
| Age rating | 4+ | 4+ |
| Developer | Manuel Kasper | ICOM INCORPORATED |
Customer experience
HamAlert
ST
In-app purchases
HamAlert
No in-app purchases
ST
No in-app purchases








