Comparison

Roar Pedal vs Knuckle Log

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

Head to head
About

Roar Pedal

This app enhances vehicle responsiveness by eliminating accelerator pedal delays. It offers multiple driving modes with adjustable sensitivity levels to customize your driving experience. Installation is simple and plug-and-play, requiring no wiring modifications.

Highlights
  • Eliminates throttle delay
  • Multiple driving modes (Race, Sport+, Sport, Eco)
  • Adjustable sensitivity levels (1-9)
  • 36 customizable parameters
  • Plug-and-play installation
  • No wiring modifications needed
Features
Read full description

Have you ever noticed that today's newer vehicles lack the responsiveness that came with older throttle cables? Let's face it, no one wants a slow unresponsive car, but this is what we get nowadays, every vehicle sold has some form of throttle delay built into it. Roar Pedal solves this problem by removing response delays from the accelerator pedal allowing you to enjoy a new way of driving. There are 5 modes available. Race Mode, Sport+ Mode, Sport Mode and Eco Mode offer 1~9 sensitivity level. These 36 different parameters allow you to find the perfect feeling of acceleration. Roar Pedal Controller can be installed in 10 minutes or less. It is a complete plug & play system that connects above your gas pedal and works from inside your car, you don’t even need to pop your hood. If you can plug in a lamp, then you can install Roar Pedal Controller, as it requires absolutely no cutting of any wires & does not use the OBDII socket.

About

Knuckle Log

Features
Read full description

The record of the work you did yourself. Every log app tracks oil changes. Knucklelog vets the proof. Snap the receipt and the record fills itself in — vendor, date, total, part numbers — then gets checked against your odometer history and locked into a ledger a stranger can trust. LOG IT IN SIX TAPS Pick the vehicle, tap the job, snap the receipt. Date and mileage fill themselves in. No receipt? Log it anyway — your word, on the record. THE LEDGER KEEPS SCORE Every vehicle carries its full service history: verified jobs, flagged gaps, documented spend, odometer timeline. Nothing slips, nothing fades. DUE MEANS DUE Set intervals once. Knucklelog watches the calendar and the odometer, and reminds you before the job is late — and nags politely once it is. THE BUYER REPORT When it's time to sell, export the whole verified history as a clean, shareable report. DIY history usually hurts resale — a vetted record flips that. YOURS, OFFLINE, PORTABLE Works in the garage with no signal — records queue and sync when you're back. Export a complete JSON snapshot anytime. Delete your account and all its data in-app, no email required. PLANS Free: 1 vehicle, on-device receipt OCR, the full ledger, torque specs, and fuel log. Basic ($24.99/yr): 2 vehicles, AI receipt scans (10/mo), buyer reports included, cloud sync. Premium ($49.99/yr): 10 vehicles, AI scans (25/mo) — room for the project cars. Or unlock a one-time Buyer Report for a single vehicle ($35.99). Subscriptions renew yearly until canceled in Settings. Terms: https://knucklelog.com/terms · Privacy: https://knucklelog.com/privacy

Screenshots

Roar Pedal4 screens
Knuckle Log4 screens

Verdict

The call

The clearest difference is in-app purchases: Roar Pedal at none against Knuckle Log's 3. Knuckle Log's advantage is update cadence (weekly vs every 10 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. Knuckle Log sells 3 in-app purchases, starting at $24.99 per year. Roar Pedal asks for nothing beyond the download.

UpkeepUpdate frequency

Roar Pedal ships an update every 10 months, Knuckle Log weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Roar Pedal versus Knuckle Log: the parameters behind the verdict, then further details
ParameterRoar PedalKnuckle Log
PriceFreeFree
Rating3.4 (21 ratings) — better—
Positive reviews20.0% of reviews—
Number of ratings21 — better—
Update frequencyEvery 10 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS16.0 — better17.0
Further details — not scored
Size1 MB8 MB
Age rating17+4+
DeveloperRoar Pedal LLCSCOTT DAVID DONALD KRELL

In-app purchases

None

Roar Pedal

No in-app purchases

3 purchases

Knuckle Log

Subscriptions2
  • Basic$24.991 Year
  • Premium$49.991 Year
One-time1
  • Buyer Report Unlock$35.99

Questions

Is Roar Pedal free?
Roar Pedal is free to download, with no in-app purchases.
Is Knuckle Log free?
Knuckle Log is free to download, with in-app purchases available.
Do Roar Pedal or Knuckle Log have ads?
Neither Roar Pedal nor Knuckle Log shows ads.
Which is updated more often, Roar Pedal or Knuckle Log?
Roar Pedal ships an update every 10 months, and Knuckle Log weekly. Most recently, Roar Pedal was updated on November 3, 2026 and Knuckle Log on October 31, 2026.

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