Comparison

Stalker Task Force vs SFST Guide and Grade

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

Head to head
About

Stalker Task Force

This tool enhances traffic enforcement by allowing officers to capture speed violations with video, photo, audio, and location data. It supports team operations with distinct spotter and responder modes, and securely stores all evidence in a cloud portal for easy review and sharing.

Highlights
  • Real-time violation capture
  • Video, photo, and audio evidence
  • GPS location tagging
  • Spotter and Responder modes
  • Secure cloud evidence portal
  • Field sketching and mapping
  • Radar display and logging
Features
Read full description

The real-time spotter and responder tool for traffic enforcement. Pair your Stalker Lidar RLR or Stalker DSR 2X+ radar with Task Force to capture speed violations with video, photo, audio, and location, then hand them to the officer making the stop. One App. Two Modes. One Secure Portal. • Spotter Mode: pull the RLR trigger to record the violation on video with its speed, distance, and location. • Responder Mode: receive the alert, join the event, make the stop, and add photos or video to the evidence file. • Secure Evidence Portal: every video, photo, and reading is stored in a secure cloud for review, filtering, and sharing. ■ HOW IT WORKS ■ Use Task Force solo in Spotter Mode, or as a team: one officer spots while the others work in Responder Mode. SPOTTER MODE When the officer sees a speeding vehicle, they pull the trigger on their RLR. The app records a video clip of the incident until the trigger is released, then alerts every officer in Responder Mode. RESPONDER MODE Any number of officers can join in Responder Mode. When the Spotter records a violation, each responder gets a notice and any one of them can accept it. After intercepting the vehicle, the officer adds photos and video to the same evidence file. FIELD SKETCH Sketch a scene on the map: drop markers, range a point with the RLR, and attach notes, voice memos, photos, and drawings. Each sketch exports as a PDF report. RADAR DISPLAY Watch the DSR 2X+ front and rear antennas live. Every lock is logged with its location, so you can find it on the map, replay it, and export the history to PDF or CSV. RECORDS AND DEVICES Register your devices once and keep each unit’s records together, ready to export. SECURE EVIDENCE PORTAL Violations from both modes go to the cloud-based Evidence Portal, where you can map them, sort by date or officer, review evidence, and export data. ■ DEVICE REQUIREMENTS ■ An iPhone on iOS 15 or later paired over Bluetooth with a Stalker Lidar RLR or Stalker DSR 2X+ radar. A phone mount is available at https://www.StalkerRadar.com

About

SFST Guide and Grade

Features
Read full description

A field-ready reference, study, and evaluation tool for law enforcement officers conducting or studying Standardized Field Sobriety Testing (SFST). SFST Guide & Grade brings SFST procedures, supplemental tests, study materials, randomized test tools, and field grading together in one streamlined, offline-first app. FIELD-READY SFST REFERENCE Quickly access procedures and reference information for: Horizontal Gaze Nystagmus (HGN) Walk-and-Turn (WAT) One-Leg Stand (OLS) Alphabet Recitation Counting Backward Romberg Balance Modified Romberg Each test has its own organized guide with procedures, scripts, hints, and available tools. STUDY & REVIEW Use the built-in guides and flashcards to review SFST concepts wherever you are. Study standardized and supplemental tests, review procedures, and reinforce your knowledge without needing an internet connection. RANDOMIZED TEST TOOLS Counting Backward and Alphabet Recitation include built-in random pair generators. Generate a new Start/End number or letter pair with one tap. Generated pairs follow the app's configured guidance, avoid immediately repeating the previous pair, and are designed to provide practical test scenarios for study and field preparation. FIELD GRADING Work through an SFST evaluation in one place. Record observed clues using clear + and − controls, track your running total, and see the applicable decision threshold while you work. Session-based grading helps keep observations organized from one test to the next, with a final summary of the evaluation. DESIGNED FOR THE FIELD SFST Guide & Grade is built around a simple interface designed to keep important information easy to find. Large, clear controls Dark-friendly interface Haptic feedback Accessible touch targets Clear scoring states Smooth navigation and transitions Offline-first functionality The app is designed to remain useful in environments where an internet connection may not be available. PRIVACY & OFFLINE OPERATION The core guide, grading, study, and test tools work without an internet connection. SFST Guide & Grade does not require a network connection to browse its reference material or use its built-in tools. Evaluation information is handled locally during an active session and is not designed to create a permanent database of sensitive evaluation records. FOR OFFICERS & AGENCIES The app includes a dedicated Letter to Department Administrators explaining its purpose, capabilities, offline-first design, and limitations. The letter can be copied or shared directly from the app. Image credits are also provided within the app for transparency regarding the visual reference material used throughout the application. IMPORTANT SFST Guide & Grade is a professional reference, study, and documentation aid. It does not make legal determinations, determine probable cause, or independently determine impairment. Always follow your agency's policies, applicable law, and current SFST training and instructional materials.

Screenshots

Stalker Task Force4 screens
SFST Guide and Grade4 screens

Verdict

The call

The clearest difference is update cadence: SFST Guide and Grade at fortnightly against Stalker Task Force's every 2 months. On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Stalker Task Force ships an update every 2 months, SFST Guide and Grade fortnightly. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard1 real difference · 8 level
Stalker Task Force versus SFST Guide and Grade: the parameters behind the verdict, then further details
ParameterStalker Task ForceSFST Guide and Grade
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size96 MB52 MB
Age rating4+4+
DeveloperApplied Concepts IncorporatedClark Weckmann

In-app purchases

None

Stalker Task Force

No in-app purchases

None

SFST Guide and Grade

No in-app purchases

Questions

Is Stalker Task Force free?
Stalker Task Force is free to download, with no in-app purchases.
Is SFST Guide and Grade free?
SFST Guide and Grade is free to download, with no in-app purchases.
Do Stalker Task Force or SFST Guide and Grade have ads?
Neither Stalker Task Force nor SFST Guide and Grade shows ads.
Which is updated more often, Stalker Task Force or SFST Guide and Grade?
Stalker Task Force ships an update every 2 months, and SFST Guide and Grade fortnightly. Most recently, Stalker Task Force was updated on October 30, 2026 and SFST Guide and Grade on October 29, 2026.

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