Comparison

NOS Trailing vs WPP K9 Tracker

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

Head to head
About

NOS Trailing

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NOS Trailing is a professional GPS app built specifically for mantrailing dogs and their handlers. Record trails, analyze results and develop your dog's skills – all in one place. GPS TRACKING Record handler and dog trails with accuracy down to 1 meter. The app automatically filters GPS errors and saves the full history of every trail. Start and finish markers, export to GPX format. MAPS View your trails on OpenStreetMap or Google Maps. TRAIL ANALYSIS Compare the dog's trail with the person's trail and assess the accuracy of the work. The perfect tool for tracking training progress. TRAINING JOURNAL Keep a complete history of your training. Rate trails (1–5 stars), add notes, track monthly statistics. Plan training sessions and invite others – even from outside your organization. ORGANIZATIONS Join a mantrailing group, share trails with members and manage shared training. Administrators can view all members and their dogs, and record trails with other members' dogs. WEATHER CONDITIONS Automatically record weather conditions during every training session – temperature, humidity, wind. SOS ALERT In an emergency, send an SOS to your emergency contacts with your live location. Safety first. DOG MANAGEMENT Add your dogs, choose an avatar, record exams and health events. Reminders for vaccinations and vet visits. PUSH NOTIFICATIONS Reminders about upcoming training and dog-related events – never forget an important date again. ADVENTURE MODE Real-time voice alerts when your dog strays off the trail. You focus on the dog, the app talks to you. An app made by mantrailing enthusiasts, for mantrailing enthusiasts. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

WPP K9 Tracker

Features
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WPP K9 Tracker is an app for handlers and schools working with scent-tracking dogs. One person lays a trail, another trails it with the dog — the app records the GPS route, measures the dog's accuracy, and gives you tools to learn, analyze, and compete. FEATURES: • Record GPS trails in two modes (laying / trailing), even in the background with the screen off. • A real map (satellite, streets, terrain, hybrid) — see exactly where the dog worked. • Accuracy metrics: the dog's deviation from the laid trail, distance, time, efficiency. • Articles (objects on the trail) with photos, start and finish markers. • Live training rooms: chat, participants' live positions on the map, voice, route drawing. • Course / instructor mode: run a group, statistics, history. • Rankings and competition: within a course and global/regional (opt-in, under a nickname). • Tracking conditions: weather and analysis of how wind/humidity affect scent work. • Achievements and badges, dog profiles, statistics. • Export a trail to PDF (with a map) and GPX, offline maps. • 9 languages, light/dark mode. Trails are saved locally on your phone first — they work with no signal (forest, field). The app uses location, including in the BACKGROUND, to keep recording the trail while the screen is off — this is core functionality during scent-tracking training.

Screenshots

NOS Trailing4 screens
WPP K9 Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: WPP K9 Tracker at none against NOS Trailing's 2. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. NOS Trailing sells 2 in-app purchases, starting at $1.99 per month. WPP K9 Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

Scorecard1 real difference · 5 level
NOS Trailing versus WPP K9 Tracker: the parameters behind the verdict, then further details
ParameterNOS TrailingWPP K9 Tracker
PriceFreeFree
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhoneiPhone
Requires iOS16.0 — better16.4
Further details — not scored
Size32 MB83 MB
Age rating4+12+
DeveloperPawel KrugiolkaPatryk Binieda

In-app purchases

2 purchases

NOS Trailing

Subscriptions2
  • Monthly Premium7 Days trial$1.991 Month
  • Yearly Premium7 Days trial$14.991 Year
None

WPP K9 Tracker

No in-app purchases

Questions

Is NOS Trailing free?
NOS Trailing is free to download, with in-app purchases available.
Is WPP K9 Tracker free?
WPP K9 Tracker is free to download, with no in-app purchases.
Do NOS Trailing or WPP K9 Tracker have ads?
Neither NOS Trailing nor WPP K9 Tracker shows ads.
Which is updated more often, NOS Trailing or WPP K9 Tracker?
NOS Trailing ships an update weekly, and WPP K9 Tracker weekly. Most recently, NOS Trailing was updated on October 11, 2026 and WPP K9 Tracker on October 9, 2026.

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