SwiftConvert vs Radio Messenger
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SwiftConvert
Easily convert numbers between binary, octal, decimal, and hexadecimal bases. Input a number in one base and instantly view its representation in all supported bases. Features a specialized binary keyboard with a 64-bit grid for direct bit manipulation.
- Multiple number base conversion
- Simultaneous display of all bases
- Base-specific keyboard adjustment
- 64-bit binary grid display
- Copy converted numbers
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SwiftConvert is a nice simple app for people who need to swiftly convert between different number bases, as programmers often do. It supports bases of 2, 8, 10 and 16. Enter a number in any of those bases, and simultaneously see the number in every base. Just touch the display for the base you want to use for entry - the keyboard will adjust to fit that base. The binary keyboard even has a 64-bit grid display which lets you toggle any bit directly with your finger, giving you a key for each bit. You can copy the resulting number in any base, just hold your finger on the display you want and the "copy" menu item will appear.
Radio Messenger
Communicate off-grid using amateur radio frequencies. Send messages, files, photos, and locations without cellular service. Supports APRS and enhanced direct messaging modes.
- Off-grid messaging
- APRS messaging
- Enhanced messaging
- Location sharing
- Offline maps
- File and image sharing
- Identity verification
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Send messages, files, photos, and locations over amateur radio using your iPhone or iPad. Radio Messenger brings modern conversation to packet radio. Whether you are using APRS or experimenting on a local frequency, the app is built around messaging first, not beacons and maps. Use Radio Messenger with supported Bluetooth radios, KISS TNCs, or integrated modem with an audio adapter to stay connected when cell coverage is unavailable or simply not the point. Two messaging modes. One app. APRS Messaging Works with the existing APRS ecosystem. Send messages with acknowledgements, retries, delivery tracking, and optional Message Continuity tap into store and forward and internet delivery to help messages reach you even when you are away from the radio. Enhanced Messaging A modern radio-only messaging mode for direct conversations. Includes verifiable identity, delivery acknowledgements, read receipts, reactions, and support for longer messages. Features • Messaging focused Conversations, contacts, and multi-device sync designed to feel familiar and easy to use. • Location sharing Share your location or drop a labeled pin directly in a conversation. No automatic beaconing. You choose when and what to share. • Offline maps Maps are cached automatically so shared locations remain visible when you are off-grid. • Presence & On Air See who is active and recently heard. Share a short status and emoji so others know you are around. • File & image sharing Send photos and documents in Enhanced Messaging conversations. Recipients can accept or decline transfers. • Identity & verification Verify who sent a message and manage trusted identities for more confident communication. • Search & inbox tools Find conversations by name, callsign, or message content. Pin threads, mute alerts, and manage your inbox with ease. • Radio native Built for Bluetooth radios and external TNCs, with frequency control available on supported hardware. Radio Messenger is designed for licensed amateur radio operators and requires compatible radio. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Radio Messenger at Free against SwiftConvert's $0.99. Radio Messenger also leads on rating (5.0 vs 4.0) and update cadence (every 3 weeks vs every 15 months). SwiftConvert's advantage is in-app purchases (none vs 2) and iOS requirement (16.0 vs 18.6). On 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
Radio Messenger is free to download; SwiftConvert costs $0.99 up front. Radio Messenger sells 2 in-app purchases, starting at $1.99 per month. SwiftConvert asks for nothing beyond the download.
Radio Messenger holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Radio Messenger has 13 ratings behind it against 1, so its average is the more settled of the two.
SwiftConvert ships an update every 15 months, Radio Messenger every 3 weeks. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.
| Parameter | SwiftConvert | Radio Messenger |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.0 (1 ratings) | 5.0 (13 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 13 — better |
| Update frequency | Every 15 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Freemium — better |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 39 MB |
| Age rating | 4+ | 4+ |
| Developer | Planetary Code LLC | Island Magic Co. |
Customer experience
SwiftConvert
Radio Messenger
In-app purchases
SwiftConvert
No in-app purchases
Radio Messenger
- Radio Messenger Plus Monthly$1.991 Month
- Radio Messenger Plus Yearly1 Year trial$14.991 Year









