Comparison

Par Timer Pro vs Dirty Knife Timer

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

Head to head
About

Par Timer Pro

Enhance firearm proficiency for safety and speed with this training app. It precisely tracks your par times for dry fire and live-fire drills, helping you improve shooting discipline, timing, and accuracy. Ideal for concealed carry permit holders and competitive shooters.

Highlights
  • Par time tracking
  • Dry fire practice
  • Live-fire drill support
  • Accuracy and timing measurement
  • Firearm safety and control enhancement
  • Progress tracking
Features
Read full description

Perfect for honing firearm skills for safety and speed! Whether you're a member of the USCCA, a CCW permit holder, a competitor in IDPA and USPSA events, or a range safety officer, Par Timer Pro is designed to refine your shooting discipline. We support both newcomers and experienced marksmen in tracking and improving their firearm proficiency, timing and accuracy with unmatched precision and ease of use. Crafted for ease of use and accuracy, Par Timer Pro strips away the complexity of traditional shooting timers. It’s a seamless companion for dry fire practice at home or live-fire sessions at the range, promoting firearm safety and control. With Par Timer Pro, elevate your concealed carry skills to prepare for CCW licensing and CCW training across all 50 states, staying safe and responsible. NOTE: Be informed that Par Timer Pro is does not capture the sound of gunfire shots. Instead, our focus is on tracking par times effectively for your training drills, ensuring you gain the most from your dry fire and live-fire practices. Train with confidence, measure your progress, and achieve your firearm mastery goals with Par Timer Pro Terms and Conditions: https://partimerpro.com/terms/ Privacy Policy: https://partimerpro.com/privacy/

About

Dirty Knife Timer

Features
Read full description

This application is used to train quick-draw knife techniques, recording draw speed as a timer to enhance self-defense ability. We utilize the iPhone’s accelerometer to achieve this. Instructions: 1. Set your phone’s volume to maximum. 2. Set the countdown timer (can be a fixed time or random). 3. During the countdown, do not turn off the screen. Place the phone in your pocket. 4. When you hear the beep, immediately draw your knife. 5. The moment you come to a complete stop after drawing, the app will use accelerometer data to determine that you have finished the draw, thus calculating the time it took to draw the knife. Thank you to Matei Florin for inspiring me.

Screenshots

Par Timer Pro3 screens
Dirty Knife Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Dirty Knife Timer at none against Par Timer Pro's 16. 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. Par Timer Pro sells 16 in-app purchases, starting at $0.99 per 7 days. Dirty Knife Timer asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly weekly. The most recent releases landed on October 12, 2026 and October 7, 2026 respectively.

Scorecard1 real difference · 9 level
Par Timer Pro versus Dirty Knife Timer: the parameters behind the verdict, then further details
ParameterPar Timer ProDirty Knife Timer
PriceFreeFree
Rating4.5 (374 ratings) — better—
Positive reviews58.8% of reviews—
Number of ratings374 — better—
Update frequencyWeeklyWeekly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.0
Further details — not scored
Size73 MB6 MB
Age rating17+4+
DeveloperLuke PighettiShun Man Leung

Bugs and requests

Par Timer Pro

Reported bugs

10 issues
  • App bricks without internet
  • App asks for payment for basic features
  • App collects information
  • App sold user info, leading to spam
  • Videos not functional
Show 5 more
  • Repeat function not found
  • App boots to a black screen
  • App shows a blank screen
  • App quit working
  • App stopped working

Requested features

13 requests
  • Allow offline functionality
  • Offer a one-time purchase option
  • Implement a rep counter
  • Add ability to set reps for loops
  • Add option to configure different tones for start/stop
Show 8 more
  • Disable screen lock
  • Add microphone support for shot tracking
  • Allow editing standby time
  • Add more beep sounds, similar to Pact timer
  • Option to opt out of standby time on follow-on iterations
  • Ability to set par individually on each rep
  • Add random multi-target call outs for each iteration
  • Ability to design multi-stage drills

Dirty Knife Timer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

16 purchases

Par Timer Pro

Subscriptions14
  • 1 Week$0.997 Days
  • 1 week$2.997 Days
  • 1 month$2.991 Month
Show 11 more
  • All Access$4.997 Days
  • 1 month$6.991 Month
  • All Access$7.997 Days
  • All Access$12.991 Month
  • All Access$14.991 Month
  • All Access$19.991 Year
  • 12 months3 Days trial$19.991 Year
  • All Access$29.991 Year
  • All Access3 Days trial$29.991 Year
  • All Access$49.991 Year
  • 12 months3 Days trial$49.991 Year
One-time2
  • Lifetime$29.99
  • Lifetime$69.99
None

Dirty Knife Timer

No in-app purchases

Questions

Is Par Timer Pro free?
Par Timer Pro is free to download, with in-app purchases available.
Is Dirty Knife Timer free?
Dirty Knife Timer is free to download, with no in-app purchases.
Do Par Timer Pro or Dirty Knife Timer have ads?
Neither Par Timer Pro nor Dirty Knife Timer shows ads.
Which is updated more often, Par Timer Pro or Dirty Knife Timer?
Par Timer Pro ships an update weekly, and Dirty Knife Timer weekly. Most recently, Par Timer Pro was updated on October 12, 2026 and Dirty Knife Timer on October 7, 2026.

Other comparisons