Comparison

PD Measure Ruler vs Mouse Jiggler Undetectable

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

Head to head
About

PD Measure Ruler

Accurately measure your pupillary distance (PD) for eyeglasses and VR headsets. Offers both manual and automatic measurement modes for precise results. Optimize your eyewear fit with this user-friendly tool.

Highlights
  • Manual PD measurement
  • Automatic PD measurement
  • Accurate and precise readings
  • User-friendly interface
  • Eyeglass fitting assistance
  • VR headset adjustment
Features
Read full description

Unlock the perfect fit for your eyeglasses with our PD Ruler App – your fast and accurate tool for measuring pupillary distance (PD) using your iPhone! Accuracy and verifiability of the result are the main priority of this application for precise inter pupillary distance measurement, making it the best app for ordering glasses online, or just keeping track of your eye measurements. *** Manual Measurement *** (Requires subscription) Our app includes a highly accurate manual measurement mode, that works for most devices. Follow the intuitive on-screen guides to ensure precise results every time, no matter what device you're using. *** Quick & Automatic *** (Requires subscription) PD Measurement Effortlessly measure your pupillary distance with just one tap on supported devices (iPhone X +). Using your iPhone camera's advanced features, our app automatically detects and calculates your PD in a matter of seconds – giving you precise results for all your eyewear needs. Perfect for Glasses & VR Headsets Whether you’re buying new eyeglasses, adjusting a VR headset, or simply checking your PD for other purposes, our app makes the process hassle-free and accurate. Key Features: - Manual Measurement Mode: Perfect for most devices, ensuring no one is left behind (with a subscription). - Automatic PD Measurement: Fast, precise results using your camera's advanced features (with a subscription). - Accuracy & Precision: Our algorithm is fine-tuned for optimal performance to give accurate readings. - User-Friendly Interface: Simple and clear instructions guide you through the measurement process effortlessly. Take the guesswork out of your eyeglass fitting process with our app. Enjoy seamless accuracy. Optimize Your Vision. Optimize Your Fit. Manual and Automatic measure features require a subscription to use. By subscribing to the app you will be able to enjoy the full functionality of the app and measure pd distance using the manual method, which works on all devices, and optionally the automatic method if your device is supported. Your subscription will automatically renew unless canceled at least 24 hours before the end of the current period. You can cancel your subscription at any time from your App Store account. Enjoy the app! Please contact support@vistechprojects.com for questions or inquiries. Terms of Use: https://www.vistechprojects.com/term-of-use Privacy Policy: https://www.vistechprojects.com/privacy-policy

About

Mouse Jiggler Undetectable

This app prevents your computer from locking by simulating mouse movements. It offers customizable modes and settings to keep your screen active without manual intervention. It's a free and convenient alternative to hardware solutions.

Highlights
  • Prevents screen lock
  • Simulates mouse cursor movement
  • Scrolling and vibration modes
  • Undetectable by monitoring systems
  • Customizable pause and vibration durations
  • Adjustable screen brightness
Read full description

Prevent your computer screen from locking with Mouse Jiggler. Compatible with Windows and macOS computers, this application prevents your computer screen from locking by periodically moving your mouse cursor a few millimeters. MAIN FEATURES : - Scrolling Mode : Scrolls an image and increases screen brightness at regular intervals to move your mouse cursor. - Vibration Mode : Vibrates your phone at regular intervals to move your mouse cursor. (Vibration mode is not available on iPad) - Power-saving Mode : Activates intermittently to consume less energy. - Undetectable Mode : Use a random time interval between two animations to be practically undetectable by most monitoring systems. - Completely Free App ADVANCED SETTINGS : - Vibration : Enable or disable vibration mode. - Vibration Duration : Customize how long each vibration lasts. - Pause Duration : Set the time between two scrolls or vibrations. - Brightness Level : Adjust the brightness level when the app activates. (Reducing it too much may impact effectiveness.) COMPATIBILITY : Mouse Jiggler is officially compatible only with mice that use a visible red light (optical sensor). Mice that use invisible light, such as infrared or laser sensors, are not supported — even if they might occasionally work. This is not a bug, but a limitation related to the sensitivity of the mouse sensor, as well as your phone’s maximum screen brightness and vibration power. If you experience issues, we recommend using a mouse with a visible red optical sensor. WHY CHOOSE MOUSE JIGGLER ? - No Extra Hardware: Unlike USB dongles or jiggling pads, the app only needs your phone and your mouse. - More Private: Unlike desktop software, this mobile app leaves no digital trace on your computer. - Free & Convenient: A simple, cost-effective solution — similar hardware tools can cost up to $30. DISCLAIMER : Do not use this app if it conflicts with your employer's policies. Terms of Use: https://mousejiggler.lol/terms.html Privacy Policy: https://mousejiggler.lol/privacy.html

Screenshots

PD Measure Ruler4 screens
Mouse Jiggler Undetectable4 screens

Verdict

The call

The clearest difference is rating: Mouse Jiggler Undetectable at 4.7 against PD Measure Ruler's 4.0. Mouse Jiggler Undetectable also leads on ratings volume (272 vs 41). PD Measure Ruler's advantage is ads (none vs shown). On price, review sentiment, update cadence and in-app purchases 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. PD Measure Ruler sells 4 in-app purchases, starting at $2.99 per 7 days and Mouse Jiggler Undetectable sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Mouse Jiggler Undetectable holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Mouse Jiggler Undetectable has 272 ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 27% of PD Measure Ruler's written reviews are positive against 31% of Mouse Jiggler Undetectable's.

UpkeepUpdate frequency

PD Measure Ruler ships an update every 6 days, Mouse Jiggler Undetectable weekly. Both last shipped on November 8, 2026.

Scorecard3 real differences · 7 level
PD Measure Ruler versus Mouse Jiggler Undetectable: the parameters behind the verdict, then further details
ParameterPD Measure RulerMouse Jiggler Undetectable
PriceFreeFree
Rating4.0 (41 ratings)4.7 (272 ratings) — better
Positive reviews27.3% of reviews30.8% of reviews — better
Number of ratings41272 — better
Update frequencyEvery 6 days — betterWeekly
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size24 MB68 MB
Age rating4+4+
DeveloperVisTech.Projects LLCMathieu Meesters

Customer experience

PD Measure Ruler

All ratings36 ratings
Positive77.8%
Neutral2.8%
Negative19.4%
Written reviews22 reviews
Positive27.3%
Neutral0.0%
Negative72.7%

Mouse Jiggler Undetectable

All ratings264 ratings
Positive92.0%
Neutral1.9%
Negative6.1%
Written reviews26 reviews
Positive30.8%
Neutral0.0%
Negative69.2%

Bugs and requests

PD Measure Ruler

Not enough reviews yet to summarise bugs or requests.

Mouse Jiggler Undetectable

Reported bugs

8 issues
  • App never worked
  • Ads disable functionality
  • Sleep mode stays off too long
  • Screen locks unexpectedly
  • Full page, unskippable ads
Show 3 more
  • Ads restart after finishing
  • Mouse doesn't move
  • App locks up after ads

Requested features

5 requests
  • Remove ads
  • Improve consistency
  • Fix iPad Pro compatibility
  • Allow disabling sleep mode
  • Make ads skippable

In-app purchases

4 purchases

PD Measure Ruler

Subscriptions4
  • Weekly$2.997 Days
  • Weekly$4.997 Days
  • Weekly$7.997 Days
Show 1 more
  • Monthly$14.991 Month
1 purchases

Mouse Jiggler Undetectable

One-time1
  • Lifetime Access$4.99

Questions

Is PD Measure Ruler free?
PD Measure Ruler is free to download, with in-app purchases available.
Is Mouse Jiggler Undetectable free?
Mouse Jiggler Undetectable is free to download, with in-app purchases available.
Which has better reviews, PD Measure Ruler or Mouse Jiggler Undetectable?
Mouse Jiggler Undetectable is rated higher. PD Measure Ruler averages 4.0 out of 5 from 41 ratings, while Mouse Jiggler Undetectable averages 4.7 from 272 ratings.
Do PD Measure Ruler or Mouse Jiggler Undetectable have ads?
Mouse Jiggler Undetectable shows ads; PD Measure Ruler does not.
Which is updated more often, PD Measure Ruler or Mouse Jiggler Undetectable?
PD Measure Ruler ships an update every 6 days, and Mouse Jiggler Undetectable weekly. Most recently, PD Measure Ruler was updated on November 8, 2026 and Mouse Jiggler Undetectable on November 8, 2026.

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