Comparison

Eos Tools Pro vs TrailFollow

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

Head to head
About

Eos Tools Pro

This utility app provides advanced GNSS information for high-precision receivers, crucial for GIS and surveying. It includes an NTRIP client for corrections, user-configurable alarms, and background operation with mapping software.

Highlights
  • Advanced GNSS information (RMS, PDOP, differential status)
  • Built-in NTRIP client for RTK/DGNSS corrections
  • User-configurable audible alarms
  • Background operation with mapping software
  • Satellite view for multiple constellations
  • Orthometric Height and Position Shift computation
Features
Read full description

Eos Tools Pro is a monitoring utility for the Arrow and Skadi series high precision GNSS receivers from Eos Positioning Systems. It provides advanced GNSS information such as RMS values, PDOP, differential status, satellites tracked and used, that are critical for submeter and centimeter GIS and surveying data collection. The app features a built-in end trip client to access RTK or DGNSS corrections from an RTK network. Eos Tools Pro also allows audible user configurable alarms and runs in the background of your mapping surveying software. Features: - Built-in NTRIP client to connect to an RTK Network - Displays GNSS and Tilt Compensation accuracy with quality control information - Select the Skadi Smart Handle mode: Extensible Virtual Range Pole™ or Invisible Range Pole™ - Satellite view for all constellations in use (GPS, GLONASS, BeiDou, QZSS and IRNSS) - User configurable alarms - Orthometric Height (Geoid models for vertical datum) - Compute and apply Position Shifts to accommodate different - Laser Offset Mapping for Esri ArcGIS® Field Maps - Locate and map underground utility assets directly in ArcGIS Field Maps - Terminal emulator to send configuration commands to the receiver - HTML5 built-in browser Disclaimer: "Continued use of Eos Tools Pro running in the background and connected to the GPS/GNSS receiver can dramatically decrease the battery life of your Apple device." Technical Support: For technical support, questions, feedback or bug reporting, please contact support@eos-gnss.com.

About

TrailFollow

Features
Read full description

Two ways people fail to arrive together: everyone leaves at the wrong time, or the group gets split up on the road. TrailFollow handles both. MEETING SOMEWHERE Set the place and the time everyone should arrive. TrailFollow watches live traffic and tells each person when THEY need to head out — a 20-minute drive and a 50-minute drive get different alerts for the same 7pm dinner. No more "leaving now!" texts, no more one person waiting 25 minutes alone at the table. • Everyone sees who's on the way and their live ETA. • You get told when to leave, even with the app closed. • If someone's running late, the group finds out early — not at 7:05. • Set off and the meetup becomes a live map, so you can watch each other arrive. • Arriving tells you where everyone else is — who's already there, and who's minutes away. DRIVING THERE TOGETHER Caravanning or road-tripping? One person leads, everyone else joins with a short code, and the whole group sees each other live on one map. • Follow the leader — if the lead car takes a detour, followers get a tap-to-follow alert. • Hand over the lead mid-drive — if someone else ends up in front, one tap and everyone follows their route instead. • Nobody gets left behind — if the group spreads out, both the leader and whoever's fallen back are told, with the distance. Free for everyone. • Arrive together — the trip ends itself once everyone reaches the destination. You keep navigating with the app you already know — Apple Maps, Google Maps, or Waze. TrailFollow adds the shared layer on top. NO ACCOUNTS, NO SIGN-UPS Share a join code in Messages and you're going — one person at a time, or a whole saved group at once. Your location is shared only with the people in that trip or meetup, and only while it's running. CROSS-PLATFORM Friends don't need an iPhone to join. They can follow along from whatever phone they have, and the whole group ends up on the same map. FREE PLAN 2 meetups and 2 trips every month, with you plus one other person on each. Starting one and joining someone else's both count toward your allowance, which resets on the 1st. Reconnecting to something you're already in never counts. PREMIUM • Unlimited meetups and trips • Unlimited people in a group • Alerts if someone stops too long, goes off route, or loses signal • Trip history • Pinned favorite places and contacts, and saved groups you can send a code to in one message Great for dinners and group outings, road trips, caravans, motorcycle rides, family trips in two cars, and anywhere a group needs to arrive together. Note: TrailFollow uses your location while a trip or meetup is running so it can keep the group in sync, and can check it in the background so your "time to leave" alert still arrives with the app closed. Terms of Use: https://trailfollow.compasspass.org/terms-of-use.html

Screenshots

Eos Tools Pro4 screens
TrailFollow4 screens

Verdict

The call

The clearest difference is in-app purchases: Eos Tools Pro at none against TrailFollow's 2. TrailFollow's advantage is update cadence (every 4 days vs every 2 months). On price, 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

Both are free to download. TrailFollow sells 2 in-app purchases, starting at $2.99 per month. Eos Tools Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Eos Tools Pro ships an update every 2 months, TrailFollow every 4 days. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.

Scorecard2 real differences · 8 level
Eos Tools Pro versus TrailFollow: the parameters behind the verdict, then further details
ParameterEos Tools ProTrailFollow
PriceFreeFree
Rating4.6 (9 ratings) — better—
Positive reviews37.5% of reviews—
Number of ratings9 — better—
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.017.0
Further details — not scored
Size36 MB5 MB
Age rating17+4+
DeveloperEos Positioning SystemsCompassPass LLC

In-app purchases

None

Eos Tools Pro

No in-app purchases

2 purchases

TrailFollow

Subscriptions2
  • TrailFollow Premium$2.991 Month
  • TrailFollow Premium$24.991 Year

Questions

Is Eos Tools Pro free?
Eos Tools Pro is free to download, with no in-app purchases.
Is TrailFollow free?
TrailFollow is free to download, with in-app purchases available.
Do Eos Tools Pro or TrailFollow have ads?
Neither Eos Tools Pro nor TrailFollow shows ads.
Which is updated more often, Eos Tools Pro or TrailFollow?
Eos Tools Pro ships an update every 2 months, and TrailFollow every 4 days. Most recently, Eos Tools Pro was updated on October 24, 2026 and TrailFollow on October 18, 2026.

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