Comparison

StimuliApp vs Precision Toolkit

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

Head to head
About

StimuliApp

Create precise psychophysical tests on iOS devices without programming. Assess perceptual capabilities using various stimuli like images, sounds, and videos with synchronized visual and auditory output. Features include real-time preview and automatic report generation.

Highlights
  • Precise timing with Metal framework
  • 60 or 120 Hz test options
  • Synchronized visual and auditory stimulation
  • Interactive stimulus creation with preview
  • Automatic report generation
  • Gamma-correction features
Read full description

StimuliApp is an app designed to create psychophysical tests with precise timing on iOS devices (iPad and iPhone). Psychophysical tests are tests to assess perceptual capabilities. With a simple system of menus, different types of tests including the most common stimuli (gabors, random dots, images, sounds and videos among others) can be created. Programming skills are not necessary. Features: - Precise timing (frames are not dropped) thanks to the use of the native framework Metal, which provides a direct access to the GPU of the iOS device. - Option to run tests at 60 or 120 Hz depending on the model of the device. - Visual and auditory stimulation are synchronized. - Interactive creation of stimuli using real-time preview. - Possibility of using different spatial and time units. - Gamma-correction features. - Automatic report generation.

About

Precision Toolkit

A versatile measuring toolkit for home improvement and DIY projects. It uses device sensors and the camera to check angles, measure surfaces, align objects, and detect magnetic fields. Offers a variety of tools in a user-friendly interface.

Highlights
  • Bubble Level
  • Surface Level
  • Compass
  • Metal Detector
  • Laser Level
  • AR Ruler
  • Vibration Meter
Features
Read full description

Precision Toolkit: Level is a practical measuring toolkit for iPhone and iPad, designed for home improvement, DIY projects, alignment, leveling, and quick everyday measurements. Use your device sensors and camera to check angles, measure surface tilt, align objects, detect magnetic field changes, and measure movement. The app combines several useful tools in one clean and easy-to-use interface. Main features: • Bubble Level Check horizontal and vertical alignment with a clean, easy-to-read level interface. • Surface Level Measure roll and pitch angles on flat surfaces. Use Standard mode for quick checks and Pro mode for more detailed level reading. • Compass Find direction, heading, location coordinates, and elevation. • Metal Detector Use the device magnetometer to detect changes in the magnetic field around your phone. • Laser Level Use the camera view with level guide lines to help align frames, shelves, furniture, and other objects. • AR Ruler Measure distance, size, and area using your device camera and augmented reality tools. • Plumb Line Check vertical alignment and tilt direction with a clear plumb line view. • Vibration Meter Measure surface movement and vibration using live sensor data, waveform display, and axis readings. Additional tools and controls: • Calibration support • Lock mode • Sound and haptic feedback • Flashlight control • Simple dark interface • iPhone and iPad support Precision Toolkit: Level is useful for hanging pictures, aligning furniture, checking slopes, measuring surfaces, setting up objects, and quick field measurements. Please note: Measurements depend on your device sensors, camera, calibration, and environment. For critical construction, engineering, safety, or professional work, always verify results with dedicated professional measuring equipment. Pro Subscription: Precision Toolkit: Level offers optional Pro features through an auto-renewing subscription. • Price: $2.99 per month • Payment will be charged to your Apple ID account at confirmation of purchase. • Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. • You can manage or cancel your subscription in your App Store account settings after purchase. Terms of Use (EULA): https://guru-apps.com/terms Privacy Policy: https://guru-apps.com/privacy

Screenshots

StimuliApp4 screens
Precision Toolkit4 screens

Verdict

The call

The clearest difference is in-app purchases: StimuliApp at none against Precision Toolkit's 1. StimuliApp also leads on iOS requirement (13.0 vs 26.0). Precision Toolkit's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, rating, ratings volume and ads 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. Precision Toolkit sells 1 in-app purchase, starting at $2.99 per month. StimuliApp asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for StimuliApp against 5.0 for Precision Toolkit. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

StimuliApp ships an update every 6 weeks, Precision Toolkit every 2 weeks. Both last shipped on September 9, 2026.

Scorecard4 real differences · 6 level
StimuliApp versus Precision Toolkit: the parameters behind the verdict, then further details
ParameterStimuliAppPrecision Toolkit
PriceFreeFree
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews—100.0% of reviews
Number of ratings12 — better
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26.0
Further details — not scored
Size10 MB12 MB
Age rating4+4+
DeveloperRafael Marin CamposGuruApps, LLC

Customer experience

StimuliApp

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Precision Toolkit

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

StimuliApp

No in-app purchases

1 purchases

Precision Toolkit

Subscriptions1
  • Toolkit Pro Monthly$2.991 Month

Questions

Is StimuliApp free?
StimuliApp is free to download, with no in-app purchases.
Is Precision Toolkit free?
Precision Toolkit is free to download, with in-app purchases available.
Which has better reviews, StimuliApp or Precision Toolkit?
StimuliApp and Precision Toolkit are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do StimuliApp or Precision Toolkit have ads?
Neither StimuliApp nor Precision Toolkit shows ads.
Which is updated more often, StimuliApp or Precision Toolkit?
StimuliApp ships an update every 6 weeks, and Precision Toolkit every 2 weeks. Most recently, StimuliApp was updated on September 9, 2026 and Precision Toolkit on September 9, 2026.

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