icMercury vs PacketMessage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
icMercury
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icMercury is your gateway to space tracking, celestial exploration, and cosmic storytelling. Key Features: Satellite Tracking – Follow satellite movements and orbital paths with your virtual interface. Cosmic Alerts & Events – Stay updated on upcoming celestial events and much more beyond. Space Missions & Insights – Access astronomical data, mission updates, and space insights. Personalized Space Feed – Discover trending space news and scientific discoveries. Share Your Stellar Story – Post, discuss, and engage with a global space-loving community. Why Choose icMercury? Advanced astronomical data sources. Designed for smooth navigation and an immersive experience. Connect with fellow space enthusiasts and share your observations. Join icMercury and embark on a journey beyond Earth! Download now and explore the infinite possibilities of space!Whether you're an astronomy enthusiast, space researcher, or stargazer, icMercury brings the cosmos closer to you with latest technology and an intuitive interface
PacketMessage
This app enables licensed amateur radio operators to send reliable messages directly over RF using their radio and a compatible TNC interface. It leverages advanced error correction protocols for robust communication in a decentralized network.
- FX.25 forward error correction
- AX.25 bit-flip error correction
- Software TNC or KISS TNC interface support
- Direct RF message transmission
- Decentralized communication
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PacketMessage fully supports FX.25 forward error correction and AX.25 bit-flip error correction. Send reliable messages over software TNC or KISS TNC interfaces. Decentralized solution, messages travel directly over RF via your radio. PacketMessage is intended to be used by licensed amateur radio operators. A valid amateur radio license, assigned callsign, and a compatible radio are required to send and receive messages. This app does not function as a standalone messenger.
Screenshots
Verdict
The clearest difference is in-app purchases: icMercury at none against PacketMessage's 3. icMercury also leads on iOS requirement (15.1 vs 17.6). On price, update cadence, 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. PacketMessage sells 3 one-off in-app purchases. icMercury asks for nothing beyond the download.
icMercury ships an update every 5 days, PacketMessage weekly. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.
| Parameter | icMercury | PacketMessage |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 15.1 — better | 17.6 |
| Further details — not scored | ||
| Size | 67 MB | 1 MB |
| Age rating | 12+ | 4+ |
| Developer | Interstellar Communication Holdings, Inc. | Lukasz Skierkowski |
In-app purchases
icMercury
No in-app purchases
PacketMessage
- Small Tip$1.99
- Medium Tip$4.99
- Large Tip$9.99
