Comparison

aprs.fi vs iCMTGIS PRO

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

Head to head
About

aprs.fi

Access real-time APRS position data, weather reports, and telemetry graphs globally. Offers route guidance, station tracking, and map filtering. Some advanced features require an in-app subscription.

Highlights
  • Real-time APRS position data
  • Route guidance and driving directions
  • Search callsigns and addresses
  • Track multiple stations
  • Filter map information
  • View weather and telemetry graphs
  • Beacon your position
Features
Currently charting
Read full description

An additional in-app subscription is needed for some features, so please read this application description fully before purchasing. Navigate to addresses with clear step-by-step instructions. Obtain immediate, real-time access to current APRS position information, weather reports, telemetry graphs, and more. Zoom and browse around the world and see stations immediately – no waiting. • Route guidance / driving directions • Search callsigns and addresses, with quick search-as-you-type and search history features • Track multiple stations at the same time • Filter information shown on the map (weather stations, AIS, custom filters) • View weather, telemetry and statistic graphs • Beacon your position on aprs.fi • Attach to a transceiver with a wireless connection to a BLE TNC, receive and transmit position beacons without the Internet • Runs directly on top of the reliable and fast aprs.fi database • Tested to work great on all currently-supported iPhone and iPad models • Supports iOS 14/15/16/17/18/26 • Dark Mode support for an ergonomic viewing experience in low-light environments • High-resolution graphics for Retina and Retina HD displays with full APRS symbol set Buy the app – get the web site for free! Some new features require a subscription. All old and some new features will be available without a subscription fee. These features are currently included in the Extra Features subscription package: • APRS text messaging with a modern instant messenger-like experience, supports international text and emojis • High-performance software DSP modem • APRS-IS beaconing, with up to 10 callsign profiles • Offline maps • RX iGate functionality • Long time ranges in map and graph views Note: Continued use of GPS running in the background can dramatically decrease battery life. GPS is not required for viewing APRS information. Terms of service: https://aprs.fi/page/app_terms Privacy policy: https://aprs.fi/page/app_privacy

About

iCMTGIS PRO

This professional GPS/GIS mapping and data collection tool enables users to efficiently gather location-based information and perform stakeout tasks. It supports various coordinate systems and allows for custom feature databases, making it ideal for land management, surveying, and other field applications.

Highlights
  • GPS/GIS mapping and data collection
  • Stakeout functionality
  • Support for multiple coordinate systems
  • Customizable feature-attribute database
  • Import/export of various file formats
  • Attach photos to data points
  • Track recording
Features
Read full description

iCMTGIS PRO is a professional GPS/GIS mapping, data collection and stakeout app for use on the iPad and iPhone devices. It can be used to effectively collect data and increase productivity for utilities, wildlife, natural resources, land management, surveying, soil study, archaeology, drone control points and other land-based or air-borne GPS/GIS applications. LLA, UTM, State Plane and local coordinate systems supported. It also provides the ability to create a local NEZ coordinate system to use with real-world designs on paper. Requires iOS 9 or newer version of iOS. iCMTGIS PRO will work with any iOS compatible GPS devices. In addition, it is able to display the GPS status for a few specific external GPS receivers and record accuracy and quality information for the recorded position - e.g. EOS Arrow Gold, Geneq SXBlue Platinum, Juniper Systems Geod. When used with these GPS receivers, you will be able to set PDOP mask and RMS limit for quality assurance. iCMTGIS PRO can make use of the NGS Geoid12a binary files. It can be a valuable RTK data collection and stakeout tool when used with a compatible GPS receiver that outputs the needed accuracy information. iCMTGIS PRO will let you define a custom Feature-Attribute database to facilitate data collection. It will let you log GPS Points, Lines and Area Features and tag them with predefined or manually added descriptions. It will let you log multiple GPS fixes and automatically calculate the average position. It will let you record nested Points while recording a Line or Area Feature. It will also let you digitize Features on top of a background map or create traverse points by entering angles and distances. You may load a GeoTiff image to use as a static or moving background map. You can record your track while performing other tasks using this app. Enter deed calls to create a deed plot. View distances and areas on the spot. Create buffers. Create a grid over an area. Crate contour lines based on points with (x,y,z) coordinates. Attach photos. Easily import/export Shapefiles, Excel files, DXF files, KML files and text files, send/receive files via ftp or email, and store files in the Cloud. Generate and view PDF files. The app comes with a detailed built-in help document. Free relevant GPS/GIS training videos are provided on the Internet. iCMTGIS PRO provides Point Stakeout as well as Line Stakeout functionality to help you get to a specific Point or to move along a pre-defined Line or perimeter. iCMTGIS PRO is a one-time purchase without any annual subscription fees. It will run on iPad devices as well as iPhone devices. Please note: Location data depends on the GPS receiver used. Continued use of GPS running in the background can dramatically decrease battery life. iCMTGIS PRO will let you easily toggle the GPS on or off.

Screenshots

aprs.fi4 screens
iCMTGIS PRO4 screens

Verdict

The call

The clearest difference is price: aprs.fi at $6.99 against iCMTGIS PRO's $299.99. aprs.fi also leads on update cadence (fortnightly vs every 3 months) and ratings volume (1.2K vs 7). iCMTGIS PRO's advantage is in-app purchases (none vs 3) and review sentiment (100% vs 70%). On rating, ads, device support and iOS requirement 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

aprs.fi costs $6.99 and iCMTGIS PRO $299.99 up front. aprs.fi sells 3 in-app purchases, starting at $1.99 per month. iCMTGIS PRO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iCMTGIS PRO holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: aprs.fi has 1.2K ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 70% of aprs.fi's written reviews are positive against 100% of iCMTGIS PRO's.

UpkeepUpdate frequency

aprs.fi ships an update fortnightly, iCMTGIS PRO every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 4 level
aprs.fi versus iCMTGIS PRO: the parameters behind the verdict, then further details
Parameteraprs.fiiCMTGIS PRO
Price$6.99 — better$299.99
Rating4.7 (1.2K ratings)4.9 (7 ratings) — better
Positive reviews70.4% of reviews100.0% of reviews — better
Number of ratings1.2K — better7
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
Best chart rank#24 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size28 MB15 MB
Age rating4+4+
DeveloperGainIOCORVALLIS MICROTECHNOLOGY, INC.

Customer experience

aprs.fi

All ratings1,133 ratings
Positive92.9%
Neutral2.2%
Negative4.9%
Written reviews223 reviews
Positive70.4%
Neutral11.2%
Negative18.4%

iCMTGIS PRO

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

aprs.fi

Reported bugs

4 issues
  • Beacon not clickable
  • Freezing on settings screen
  • Incompatible with older iOS versions
  • Inconsistent behavior with VOX on radios

Requested features

6 requests
  • Offline maps support
  • Ability to change nickname without creating new account
  • Smart beaconing mode
  • Bulk message deletion
  • CarPlay support
Show 1 more
  • Automatic location detection

iCMTGIS PRO

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

aprs.fi

Subscriptions3
  • Extra features, monthly$1.991 Month
  • Extra features, yearly7 Days trial$6.491 Year
  • Extra features, fair trade7 Days trial$13.491 Year
None

iCMTGIS PRO

No in-app purchases

Questions

Is aprs.fi free?
aprs.fi costs $6.99, and also offers in-app purchases.
Is iCMTGIS PRO free?
iCMTGIS PRO costs $299.99, with no in-app purchases.
Which has better reviews, aprs.fi or iCMTGIS PRO?
iCMTGIS PRO is rated higher. aprs.fi averages 4.7 out of 5 from 1.2K ratings, while iCMTGIS PRO averages 4.9 from 7 ratings.
Do aprs.fi or iCMTGIS PRO have ads?
Neither aprs.fi nor iCMTGIS PRO shows ads.
Which is updated more often, aprs.fi or iCMTGIS PRO?
aprs.fi ships an update fortnightly, and iCMTGIS PRO every 3 months. Most recently, aprs.fi was updated on October 26, 2026 and iCMTGIS PRO on October 24, 2026.

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