Range Day vs Dirty Knife Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Range Day
This app helps optimize your shooting range training sessions. It includes tools for calculating hit factors, creating custom drills, and accessing specialized training routines to track and improve your skills.
- Hit Factor Calculator
- Custom Drill Creator
- T.REX ARMS Training Drills
- Skill Improvement Tracking
- Range Session Optimization
Read full descriptionHide full description
Range Day is designed to help optimize your time at the range. With a Hit Factor Calculator, a Custom Drill Creator, and access to unique T.REX ARMS training drills, you will be able to track your skills improvement over time and get the most out of your range days.
Dirty Knife Timer
Read full descriptionHide 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
Verdict
The clearest difference is update cadence: Dirty Knife Timer at weekly against Range Day's every 2 weeks. Range Day's advantage is iOS requirement (14.0.0 vs 16.0). 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. Neither carries in-app purchases, so what you see is what you pay.
Range Day ships an update every 2 weeks, Dirty Knife Timer weekly. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.
| Parameter | Range Day | Dirty Knife Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (138 ratings) — better | — |
| Positive reviews | 93.8% of reviews | — |
| Number of ratings | 138 — better | — |
| Update frequency | Every 2 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 14.0.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 71 MB | 6 MB |
| Age rating | 17+ | 4+ |
| Developer | T.Rex Arms, Inc. | Shun Man Leung |
Bugs and requests
Range Day
Reported bugs
2 issues- Glitches when trying to modify or delete custom drills
- Unable to edit details of custom drills after saving
Requested features
7 requests- Allow creating custom drills using yards/feet instead of just meters
- Allow editing of custom drills
- Add ability to attach photos/diagrams to custom drills
- Add a shot timer feature
- Add ability to share drills with friends
Show 2 moreShow fewer
- Add a visual drill designer/editor
- Add a video library section
Dirty Knife Timer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Range Day
No in-app purchases
Dirty Knife Timer
No in-app purchases
Questions
Is Range Day free?
Is Dirty Knife Timer free?
Do Range Day or Dirty Knife Timer have ads?
Which is updated more often, Range Day or Dirty Knife Timer?
Other comparisons
