Ham Square vs UberSDR
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ham Square
This app provides radio amateurs with a quick and easy way to determine their Maidenhead Locator, a grid system used globally for location communication. It's a free tool for ham radio operators.
- Displays Maidenhead Locator
- Uses current location
- Convenient for radio amateurs
- Global grid system
- Free application
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Ham Square is a free application that displays the Maidenhead Locator, or "square", for your current location. This grid system is used by radio amateurs worldwide as a convenient and short way of representing and communicating a location. Details of more ham radio apps from KramStuff are at http://www.kramstuff.com
UberSDR
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UberSDR makes your iPhone or iPad the front end of a real radio receiver, anywhere in the world. Pick one from the public directory — dozens of them, run by enthusiasts from Scotland to Brazil — or find a receiver on your own network. No account, no sign-up, no hardware: you are listening within seconds. Tune by spinning the frequency dial, dragging the waterfall, or tapping a marker. Signals arrive on a live spectrum and waterfall you can zoom and hold. Choose LSB, USB, AM, SAM, NFM, FM or CW, set the passband by hand, and pull a weak station out of the noise with noise reduction, a notch filter and squelch. Shortwave broadcasters, the amateur bands, aviation, marine, time signals and stranger things besides. A band plan and live DX cluster spots say what you are hearing; bookmarks take you back to it. Audio carries on when you lock the screen or move to another app, with the usual controls on the lock screen. Everything stays on your device. Nothing is collected, and there is nothing to sign in to.
Screenshots
Verdict
The clearest difference is update cadence: UberSDR at weekly against Ham Square's every 84 months. Ham Square's advantage is iOS requirement (10.3 vs 15.0). 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.
Ham Square ships an update every 84 months, UberSDR weekly. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.
| Parameter | Ham Square | UberSDR |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (16 ratings) — better | — |
| Positive reviews | 61.5% of reviews | — |
| Number of ratings | 16 — better | — |
| Update frequency | Every 84 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 61 MB | 7 MB |
| Age rating | 4+ | 12+ |
| Developer | Kram | Nathan Higgins |
In-app purchases
Ham Square
No in-app purchases
UberSDR
No in-app purchases
