Dirt Slingin Tech vs Wehrs Machine Data Log
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dirt Slingin Tech
This app helps dirt track racers manage race car setups, time laps, and analyze telemetry. It provides digital setup sheets, corner-by-corner lap analysis, and AI-powered guidance for car adjustments. Track parts, maintenance, and access rulebooks for a competitive edge.
- Digital race car setup sheets
- Lap timing and telemetry import
- Corner-by-corner lap analysis
- AI-powered setup guidance
- Parts and maintenance tracking
- Gearing calculator
- Access to rulebooks
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Dirt Slingin Tech is the dirt track racing app for race car setup sheets, lap timing, and telemetry. Import laps from a RaceBox or a GoPro, see where you lost time corner by corner, and keep every setup you have ever run in your pocket. Built for IMCA and USRA racers in Modifieds, Stock Cars, Sport Compacts, Late Models, Sprint Cars, Micro Sprints, and Go Karts. LAP TIMING AND TELEMETRY RaceBox Data Logger Connect your RaceBox and import lap times, GPS, speed, and G-force for every run. Caution laps are set aside so your averages and best laps reflect green-flag racing. GoPro Lap Import Already running a GoPro? Pull laps straight from the camera's GPS track, then watch the video for any lap right next to the data. Corner Splits Entry, middle, and exit times for every corner, every lap, so you know exactly which part of the track is costing you. Lap Comparison and Time-Lost Chart Line up two laps by position on the track and see where the gap opened. The time-lost chart and delta bar show the difference corner by corner and down each straight. RACE CAR SETUP Digital Setup Sheets Record springs, shocks, bars, weights, stagger, gear, and notes for each car. Everything is backed up to the cloud, so you never lose that perfect spring package. Setup Compare Put two setups side by side and show only what changed, so you can tell exactly what moved between the heat and the feature. Race History with Linked Setups Log every event, finish, and track condition with the exact setup you ran that night. Setup Export and Printing Share or print any setup as a PDF for your crew or your notebook. AI-Powered Crew Chief Describe how the car is handling and get setup guidance based on track conditions, car balance, and your own data. Adjustment Recommendations Targeted suggestions to tighten or loosen the car on entry, mid-corner, or exit. CAR AND SHOP Parts Tracking Keep shocks, gears, tires, and engine parts organized and track laps on each one so you know when it is time to rotate or replace. Maintenance Schedules and Checklists Build pre-race and between-race checklists and put recurring maintenance on the calendar. Gearing Calculator Try tire sizes and gear ratios to dial in top speed, RPM, and acceleration for each track. Official Rulebooks and Tech Articles Quick access to IMCA and USRA rules, plus tuning guides on spring rates, shocks, sway bars, gearing, and more. A dark interface that is readable in the pits at night. DST PRO Free to download. Your first RaceBox run and your first GoPro import are free, and corner splits and lap comparison are always included. DST Pro adds unlimited RaceBox and GoPro imports, unlimited setups per car, custom setup fields, setup compare, printing and sharing, the AI crew chief, and removes ads. $8.99 USD per month or $49.99 USD per year The annual plan includes a 7-day free trial Charged to your Apple ID at confirmation Auto-renews unless turned off at least 24 hours before the end of the current billing period Manage or cancel anytime in your App Store account settings Have a partner promo code? Enter it on the upgrade screen. Terms and Conditions: https://dirtslingintech.com/terms-and-conditions Privacy Policy: https://dirtslingintech.com/privacy_policy EULA: https://dirtslingintech.com/eula
Wehrs Machine Data Log
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The Wehrs Machine Data Log is your companion app for all your WM bluetooth enabled products. You can connect your Wehrs Machine Load Stick and save its data. Wehrs Machine Data Log Pro is available as a one-time in-app purchase, unlocking full access to all features. Connecting is easy, you open the app, turn your device on in pairing mode, connect, and boom you're off to the races. Gathering your data is slick, and saving it is great for reviewing later.
Screenshots
Verdict
The clearest difference is update cadence: Dirt Slingin Tech at every 5 days against Wehrs Machine Data Log's fortnightly. 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
Both are free to download. Dirt Slingin Tech sells 4 in-app purchases, starting at $8.99 per month and Wehrs Machine Data Log sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Dirt Slingin Tech ships an update every 5 days, Wehrs Machine Data Log fortnightly. The most recent releases landed on November 11, 2026 and November 9, 2026 respectively.
| Parameter | Dirt Slingin Tech | Wehrs Machine Data Log |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (19 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 5 days — better | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 170 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | David Davis | Wehrs Machine and Racing Products |
In-app purchases
Dirt Slingin Tech
- DST Pro$8.991 Month
- DST Pro$9.991 Month
- DST Pro Annual (Partner 10% Off)7 Days trial$89.991 Year
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- DST Pro Annual7 Days trial$99.991 Year
Wehrs Machine Data Log
- Wehrs Machine Data Log Lifetime$99.99
Questions
Is Dirt Slingin Tech free?
Is Wehrs Machine Data Log free?
Do Dirt Slingin Tech or Wehrs Machine Data Log have ads?
Which is updated more often, Dirt Slingin Tech or Wehrs Machine Data Log?
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