iMedJelly vs APRS Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iMedJelly
Get real-time jellyfish presence data for Catalan beaches, including species, abundance, and risk levels. Learn first aid protocols for stings and connect with experts for personalized follow-up. Contribute to citizen science by reporting your sightings.
- Daily jellyfish presence reports
- Species and abundance information
- Risk level for bathers
- First aid protocols for stings
- Expert contact for follow-up
- Jellyfish species identification
- Citizen science reporting
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iMedJelly is an application that provides daily and real-time information about the jellyfish presence on the catalan coast. In this application you will find: • Daily report of the state and jellyfish presence on the beaches (species and abundance) of the catalan coast during the summer season. Information is validated by experts from the Institute of Marine Sciences (ICM-CSIC) in real time. Information includes the species, its abundance and the risk level that this represents for bathers. • First aid protocols in case of jellyfish sting for the most frequent species of the Spanish Mediterranean coast. • Contact form for the bathers affected by stings to communicate with the experts in dermatology and toxicology of the Hospital Clinic of Barcelona to carry out a personalized follow-up of the stings. These data will also help in the research carried out in the framework of the RECLAIMED Project. • Detailed information on the most frequent species of jellyfish and gelatinous animals of the Spanish Mediterranean coast, as well as a species image gallery to facilitate identification. • Citizen Science Section called “Get involved” with forms to send your sightings and photographs to the experts of the Institute of Marine Sciences - CSIC. • Website available at www.medjelly.com Offered by Institut de Ciències del Mar – CSIC
APRS Mobile
This app provides Amateur Radio operators with a mobile interface to the Automatic Packet Reporting System (APRS). It allows users to beacon their position, view other operators on a map, and access weather data. Non-amateur operators can also monitor APRS activity globally.
- Real-time position mapping
- Beacon position in background
- Supports SmartBeaconing
- View weather station data
- Callsign SSID support
- Adjustable battery drain modes
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APRS Mobile connects your iPhone and iPad straight to APRS-IS, the internet side of the Automatic Packet Reporting System used by amateur radio operators worldwide. Watch the stations around you live, look up any station, message other hams and beacon your position. No account needed. Work over your own radio too — with a Bluetooth or network TNC, or with nothing but an audio cable and the built-in software modem. LIVE MAP • Stations appear the moment they're heard, with their APRS symbols and callsigns • Tracks, PHG circles and a Layers panel: fixed, mobile and weather stations, digipeaters, IGates and objects • Via: one control for every link — APRS-IS, TNC and software modem STATION DETAILS • Tap a station for a quick card, then its full page, updated live • Last heard, beacon prediction, digipath, comment and status • Position, Maidenhead grid, speed, course, altitude and distance from you • Current weather, plus weather and telemetry charts APRS MESSAGING • Chat with any station, with conversations and message bubbles • Messages go out over APRS-IS or straight over your radio; IGates carry them between the two • Automatic retries until acknowledged, with receipts • Notifications for messages to your callsign, even with the app closed • Block or report a station; offensive language is hidden behind a tap RADIO — TNC (OPTIONAL) • Connect a Mobilinkd TNC4, or a TNC3 on Bluetooth LE firmware, to send and receive over your own radio • Or reach a KISS TNC on your network: Direwolf on a Raspberry Pi, or a TNC on a serial-to-WiFi bridge • Choose how messages and beacons go out, and where map stations come from: radio, APRS-IS or both • Stays connected in the background, so beaconing and receiving carry on • Run a fill-in digipeater or an IGate from your phone • A TNC and a radio are separate purchases; everything else works without them RADIO — SOFTWARE MODEM (OPTIONAL) • No TNC required: with an audio cable your phone is the modem — 1200 baud APRS decoded from your radio's audio • Transmit through a radio set to VOX, with adjustable TX delay and level • A live spectrum with both tones marked, a level check in plain language and a clipping warning • Receiving needs no licence; transmitting is off until you confirm you hold one OFFLINE MAPS • Download OpenStreetMap-based maps for the areas you care about, and the map works with no network BEACONING • Four ways to beacon, from Settings or the map: off, SmartBeaconing, every so often, or fixed • SmartBeaconing beacons more often when moving fast or turning, less when slow or stopped • Fixed position suits a home station: type it in once, and no GPS is used • Carries on in the background when you allow it, with a low-power mode • Choose your APRS symbol, comment and position ambiguity AND MORE • Search for any callsign, city or zip code • An Apple Watch app: beacon, messages, nearby stations and weather graphs • Imperial, metric and nautical units, any APRS-IS server Receiving is free: anyone can watch APRS activity and weather stations. Transmitting — beacons, messages, the digipeater — needs APRS Mobile Transmit, a yearly auto-renewing subscription with the first month free. If you had APRS Mobile before version 1.4, transmitting stays free for you. It also requires an amateur radio license; over APRS-IS it needs the passcode for your callsign, and over the air it has to be switched on by hand. Terms: https://aprsmobile.app/terms Privacy: https://aprsmobile.app/privacy The software modem uses the microphone to hear your radio. The audio is decoded on your device, never recorded and never sent. Weather and telemetry history charts, and offline map downloads, come from openaprs.ai; everything else comes straight from APRS-IS or your radio. Offline map data © OpenStreetMap contributors. Positions you send can be seen on other APRS websites too. Continued use of GPS running in the background can dramatically decrease battery life. A live APRS-IS feed uses a lot of data.
Screenshots
Verdict
The clearest difference is in-app purchases: iMedJelly at none against APRS Mobile's 2. iMedJelly also leads on iOS requirement (8.0 vs 18.0). APRS Mobile's advantage is update cadence (weekly vs every 4 months) and review sentiment (44% vs 24%). On price, rating, ratings volume and ads 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. APRS Mobile sells 2 in-app purchases, starting at $1.99 per year. iMedJelly asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for iMedJelly against 5.0 for APRS Mobile. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 24% of iMedJelly's written reviews are positive against 44% of APRS Mobile's.
iMedJelly ships an update every 4 months, APRS Mobile weekly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.
| Parameter | iMedJelly | APRS Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Positive reviews | 23.6% of reviews | 43.8% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 4 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 8.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 35 MB | 36 MB |
| Age rating | 4+ | +17 |
| Developer | Bahía Software | OpenAPRS |
Customer experience
iMedJelly
APRS Mobile
In-app purchases
iMedJelly
No in-app purchases
APRS Mobile
- APRS Mobile Transmit1 Month trial$1.991 Year
- APRS Mobile Transmit Lifetime$9.99







