PDRA Slips vs TrackR Performance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PDRA Slips
Access detailed drag racing time slips from PDRA events directly on your phone. Enhance your race day experience with real-time weather data and automatic density altitude calculations to help tune your engine and strategize your dial-in.
- Real-time time slip data
- Weather station information
- Automatic density altitude calculation
- Engine tuning assistance
- Dial-in calculation for bracket racing
- Review qualification, pairing, and ladder reports
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Drag racing Time slips from the PDRA events are currently printed using a receipt printer at the race track. This app shows the same time slips information on your phone. The app also enhanced the racer and spectator's experience at the race track by reading more detailed information from each race track on the phone in realtime (within seconds after each race). The app shows the weather station information and calculate the Density Altitude automatically to help the racers to tune their engines before racing. A first in the industry. This app lets you review drag racing time slips from PDRA events at any time including qualification, pairing and ladder reports. The racers can also use the time slips of their car# and show their car's performance base on the Density Altitude to help calculate your next Dial In at your next bracket drag race with your car. This is another first in the industry. You can review our "Terms of Use" here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ You can review our "Privacy Policy" here: https://www.dynogeeks.com/privacy.html
TrackR Performance
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TrackR is the bracket racer's data logbook and dial-in predictor — built by racers, for racers. Log every pass in seconds, let TrackR learn your car, and walk up to the lanes knowing your number. Every ET prediction is backed by real math — no black box. PREDICT YOUR DIAL-IN • ET predictions from density altitude, your reference runs, and wind • See the breakdown behind every number: reference run + air + wind • Confidence grows the more you log • 1/8 and 1/4 mile kept separate — never mixed LOG RUNS FAST • Snap your timeslip and let TrackR read it for you • Automatic weather and density altitude at your track • Capture 60-foot, splits, MPH, reaction time, dial-in, and finish margin • Win/loss and round-by-round history KNOW YOUR CONDITIONS • Live density altitude for your track • Hourly ET forecast — find the best window to run • Weather what-if simulator: see how cooler air or a headwind moves your ET TRACK YOUR CAR • Full car profile and setup baselines • Maintenance reminders by runs, race days, calendar, and season • A setup snapshot saved with every pass MORE • 1,000+ US drag strips built in • Import Racepak data logger files • Clean, fast, dark interface made for the lanes Have a feature request or found a bug? The in-app feedback button comes straight to our team. Stop guessing. Make race-day calls from your own data.
Screenshots
Verdict
The clearest difference is in-app purchases: TrackR Performance at none against PDRA Slips'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
Both are free to download. PDRA Slips sells 2 in-app purchases, starting at $4.99 per month. TrackR Performance asks for nothing beyond the download.
PDRA Slips ships an update fortnightly, TrackR Performance every 3 weeks. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.
| Parameter | PDRA Slips | TrackR Performance |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 17 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Stephan Monette | Dana Leonard |
In-app purchases
PDRA Slips
- PDRA Sharing Access$4.991 Month
- Annual Premium Access$8.991 Year
TrackR Performance
No in-app purchases
Questions
Is PDRA Slips free?
Is TrackR Performance free?
Do PDRA Slips or TrackR Performance have ads?
Which is updated more often, PDRA Slips or TrackR Performance?
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