Comparison

PTT4U vs Satellite Tracker

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

PTT4U

This app provides professional two-way radio communication over cellular networks, eliminating range limitations and interference. It's ideal for businesses and individuals needing reliable, clear communication across any distance with internet access.

Highlights
  • Unlimited communication range via GSM/3G/4G/WiFi
  • Clear, interference-free audio
  • No need for expensive radio infrastructure
  • Global usability with internet access
  • Dispatch system with location tracking
  • Platform Management Console for fleet control
Features
Read full description

Where can I get my account credentials? You can get it from ptt4u.com website What distance do PTT4U radios cover? There is no limit. As far as you have GSM/3G/4G or WiFi signal you will be in reach. This means that you are only dependent on the cellphone carrier service, or a WiFi hotspot. Why is this better compared to traditional walkie talkies? Traditional two way radio will always be limited by distance and interference. As we work with a digital connection that relies on cellphones carriers, you will always experience loud and clear interference-free communications. Besides, you don’t need to invest in expensive radio infra-structures, like repeaters, towers, antennas or leasing sites. Who can benefit from PTT4U? Taxi & general transportation companies, law enforcement, private security guards, construction sites, logistics, box movers, agriculture industry, and anyone else how needs 2-way professional radio communications without range restrictions. I need to cover a wide area and in multiple locations. Do I need a set of repeaters and antennas? No. Our service uses the network of the GSM/3G/4G carriers. You don’t need to invest on any network infra-structure, besides the mobile or hand-held radios. Does it work on any country? As far as you have internet access (via 3G/4G or WiFi) then you can use our system, regardless the location. Can the users talk between them, if they are in different countries? Yes. Any user can talk to any other user, regardless the location. How much data do PTT4U radios require in a month? For a regular use, 500 MB data plan will be enough. In extreme conditions, where communications take place for long periods, 1 GB data plan may be required Do you offer a dispatch system? Yes, you can install our dispatch system on any Windows PC and contact any users, check their position on the map, speed, send personal messages, make private and groups calls. A Platform Management Console is also available and allows you to have complete control of your radio fleet. I need a large amount of radios. Can I try before I buy? Not at the moment. But you can buy one of our Startup Packages at a discounted price, before you invest in a large quantity of radios/subscriptions. Is this for me? Any of the following industries can use our solution: Transportation Courier, Taxi, Limo Service, Tow truck, Railway, Airport, Seaport, Light rail, MRT, Logistics Construction Constructions Site, Cement delivery, Electrical, Excavating, Plumbing, Roofing Security Services Patrol Guard Service, Hotel, Condo, Offices, Factory, Sports events, Education, Fire Service Hospitality Restaurant, Hotel, Resort, Shopping mall, Supermarket Government Police, Sheriff’s Departments, Public Works, Water Departments Private users Many private customers use our service to stay in touch with family and friends Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life. - Privacy Policy and Terms of Use: http://ptt4u.com/about-ptt4u/

About

Satellite Tracker

Track satellites, the Sun, and the Moon with rise/set times and visibility calculations. Visualize Earth with 3D globe or 2D map views and customize tracking options. Offers free basic functionality with optional subscriptions for expanded satellite access.

Highlights
  • Satellite, Sun, and Moon tracking
  • Rise/set times and visibility calculations
  • 3D globe and 2D map Earth views
  • Customizable tracking options
  • Free basic functionality
  • Optional satellite subscription plans
Features
Read full description

Satellite Tracker is the follow on to our award winning HamSat series of applications. Satellite Tracker merges all the features of the iPhone and iPad versions providing you a single application that seamlessly optimizes the screen to the device you’re running it on (check out the various iPhone and iPad screen shots). The application will calculate the rise/set times and associated azimuth and elevation for the selected satellite, Sun or Moon given either the user entered or network retrieved location. There are two modes for satellite rise/set calculations. The first is for those folks wanting to know all overflights for a given location (like Ham radio operators) while the second mode computes only those passes where the satellite would be visible to a ground observer. In the ground observer mode, the calculations not only take into account that the ground is dark but also that the satellite is in sunlight (it even takes into account if the satellite becomes lit or unlit during the pass) In addition, you can see the Earth rendered either as a 3D globe or a 2D map using photo realistic texture maps for the Earth model. The orientation of the map is easily changed by a simple rotation of the device from portrait (3D) to landscape (2D). In either orientation you can zoom in and out as well as pan using the touch screen. There are more than a dozen controls provided to allow you to customize how the application works to meet your specific needs (type of Earth texture used, location, type of overflight calculated…) Finally, the application is now free to download and provides full functionality for tracking, viewing and communicating with the International Space Station (what was the capability of the ISS family of paid apps). The following subscriptions are available for tracking and communicating with a larger set of satellites: -HamSat (Annual and Monthly): Provides access to the NORAD and AMSAT two line element sets which cover all amateur related satellites. -ProSat (Annual and Monthly): Provides access to thousands of satellites grouped into the following categories (from www.celestrak.com): -100 (or so) Brightest -Last 30 Day’s Launches (or so) -Amateur Ham Radio Satellites -CubeSats -Disaster Monitoring -Earth Resources -Education -Engineering -Geodetic -Geostationary -GOES -GPS Operational -Intelsat -Iridium -Molniya -NOAA -Orbcomm -Search & Rescue (SARSAT) -Space & Earth Science -Space Station -Weather To get a feel for the apps, please checkout the iPad quickstart video (http://www.youtube.com/watch?v=tiHCGxV0WM8) and associated user’s guide (http://www.vosworx.com/wp-content/uploads/2017/05/SatSeriesHD.pdf) or the iPhone quickstart video (http://www.youtube.com/watch?v=iuPccQI9oSg) and it’s user’s guide (http://www.vosworx.com/wp-content/uploads/2017/05/SatSeries.pdf). Please note that InApp payments will be charged to your AppleID account at the confirmation of purchase. Subscriptions automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscription by going to your account settings on the App Store after purchase. For more information, please visit our Terms of Service at http://www.vosworx.com/terms-of-service-for-app and our Privacy Policy at http://www.vosworx.com/privacy-policy-for-apps. Thanks to everyone who has sent in their questions/requests and keep them coming! -Craig (support@vosworx.com)

Screenshots

PTT4U4 screens
Satellite Tracker4 screens

Verdict

The call

The clearest difference is review sentiment: Satellite Tracker at 44% against PTT4U's 0%. Satellite Tracker also leads on update cadence (every 2 months vs every 6 months) and ratings volume (13 vs 4). PTT4U's advantage is rating (4.0 vs 3.4) and in-app purchases (none vs 4). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Satellite Tracker sells 4 in-app purchases, starting at $1.49 per month. PTT4U asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PTT4U holds the better App Store score, 4.0 against 3.4. Both are backed by a comparable volume of ratings — 4 and 13 respectively. Written reviews complicate that: 0% of PTT4U's written reviews are positive against 44% of Satellite Tracker's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

PTT4U ships an update every 6 months, Satellite Tracker every 2 months. The most recent releases landed on October 1, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 3 level
PTT4U versus Satellite Tracker: the parameters behind the verdict, then further details
ParameterPTT4USatellite Tracker
PriceFreeFree
Rating4.0 (4 ratings) — better3.4 (13 ratings)
Positive reviews0.0% of reviews44.4% of reviews — better
Number of ratings413 — better
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS8.0 — better15.6
Further details — not scored
Size46 MB23 MB
Age rating4+4+
DeveloperDuarte BragaCraig Vosburgh

Customer experience

PTT4U

All ratings4 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

Satellite Tracker

All ratings13 ratings
Positive61.5%
Neutral7.7%
Negative30.8%
Written reviews18 reviews
Positive44.4%
Neutral11.1%
Negative44.4%

In-app purchases

None

PTT4U

No in-app purchases

4 purchases

Satellite Tracker

Subscriptions4
  • Amateur Satellites Monthly$1.491 Month
  • All Satellites Monthly$1.991 Month
  • Amateur Satellites Annual$8.991 Year
Show 1 more
  • All Satellites Annual$11.991 Year

Questions

Is PTT4U free?
PTT4U is free to download, with no in-app purchases.
Is Satellite Tracker free?
Satellite Tracker is free to download, with in-app purchases available.
Which has better reviews, PTT4U or Satellite Tracker?
PTT4U is rated higher. PTT4U averages 4.0 out of 5 from 4 ratings, while Satellite Tracker averages 3.4 from 13 ratings.
Do PTT4U or Satellite Tracker have ads?
Neither PTT4U nor Satellite Tracker shows ads.
Which is updated more often, PTT4U or Satellite Tracker?
PTT4U ships an update every 6 months, and Satellite Tracker every 2 months. Most recently, PTT4U was updated on October 1, 2026 and Satellite Tracker on October 20, 2026.

Other comparisons