RF Slide Rule vs Pocket Shack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RF Slide Rule
Read full descriptionHide full description
A simple RF Tool to calculate: - Free Space loss - RSSI - Pathloss - EIRP for a given RF link taking as inputs: - Frequency (GHz) - Distance (km or mi) - Tx and Rx Antenna gains - Rx Sensitivity - Tx Power This App should be periodically updated to incorporate additional useful RF and Telecom engineering formulas.
Pocket Shack
Read full descriptionHide full description
Pocket Shack puts the AllStarLink network in your pocket. Connect to amateur radio repeaters and hubs around the world, listen to what's happening, and talk with a tap, from your iPhone, Mac or Apple Watch. TALK AND LISTEN • Connect to any AllStarLink node that allows app connections, with clear audio and a live session clock. • Hold to talk, tap to toggle, or go hands-free with voice activation and a live sensitivity meter. (Pro) • Listen to any node free, with no microphone needed. Monitor-only connections never transmit. • Never talk over anyone: Pocket Shack shows when the node has the channel and waits for it. (Pro) • A transmit timer with a countdown keeps you from timing out the repeater. (Pro) • Mic gain with a level meter tells you if you sound too quiet, just right, or too hot. (Pro) • Voice processing cancels echo and evens out your level; turn it off for raw audio with a headset. (Pro) • An optional local beep when another station stops talking, for nodes that don't send their own. • Use the call Mute control on the Lock Screen, in CarPlay or on AirPods to start and stop talking. (Pro) FIND SOMEONE TO TALK TO • See which nodes are on the air right now and jump in. • Optionally hide nodes that don't allow app connections, so you only see nodes you can join. • Keep the nodes you use most a tap away, in your order, with a live talking or idle badge. • Search the full node directory by number, callsign or place, even offline. • Browse every node on a map, or list the ones nearest you. • Live node details: who it's linked to, its frequency, location and activity. • Look up any callsign in the app, with your QRZ subscription if you have one. • Name any node, like “JB”, and keep a note on it, synced to all your devices. EVERYWHERE YOU ARE • Run your connection from your wrist: pick a favorite, hold to talk, and see when it's busy, with your iPhone in your pocket. • Hold the big Talk button, double-tap, or use the Apple Watch Ultra Action Button, with a ring counting down your transmit time. (Pro) • Distinct wrist taps when the channel clears, when you're on the air, before the timeout, and if the link drops. • See your connection on your watch face and in the Smart Stack. • Favorites, recents and settings sync through iCloud, and your account through iCloud Keychain. • Live Activity and Dynamic Island with a Talk button, plus a Control Center control. • Widgets for your Home Screen, Lock Screen and Mac desktop show a node's status at a glance. • Keeps listening with the screen locked, over Bluetooth, and reconnects when you move between Wi-Fi and cellular. • A real Mac app with a menu bar control, a global push-to-talk shortcut and your choice of microphone and speakers. • "Call node 46308 with Pocket Shack" with Siri, and connections in your phone's Recents. MADE FOR OPERATORS • An all-red Night appearance that keeps your night vision, plus Day and Dark, or follow your system setting. • Built for VoiceOver and large text, with clear status words and symbols that never rely on color alone. • No ads, no tracking, no analytics. Your data stays on your devices and in your iCloud. • A DTMF keypad for node commands. (Pro) Listening is free. Pocket Shack Pro unlocks transmitting: $1.99 a month, $14.99 a year with a 7-day free trial, or $39.99 once. Family Sharing included. Requires an AllStarLink account. AllStarLink accounts are only for licensed amateur radio operators. Pocket Shack isn't affiliated with AllStarLink, Inc. Terms of Use: https://cygnusstrategy.com/legal/terms Privacy Policy: https://cygnusstrategy.com/legal/privacy
Screenshots
Verdict
The clearest difference is in-app purchases: RF Slide Rule at none against Pocket Shack's 3. RF Slide Rule also leads on iOS requirement (7.0 vs 26.1). On price, ads 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. Pocket Shack sells 3 in-app purchases, starting at $1.99 per month. RF Slide Rule asks for nothing beyond the download.
| Parameter | RF Slide Rule | Pocket Shack |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 7.0 — better | 26.1 |
| Further details — not scored | ||
| Size | 1 MB | 18 MB |
| Age rating | 4+ | 12+ |
| Developer | CEC, S.A. | Cygnus Strategy |
In-app purchases
RF Slide Rule
No in-app purchases
Pocket Shack
- Pocket Shack Pro, Monthly$1.991 Month
- Pocket Shack Pro, Yearly7 Days trial$14.991 Year
- Pocket Shack Pro, Lifetime$39.99





