Comparison

Precision Toolkit vs Lean

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

Head to head
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

About

Lean

This utility app transforms your iPhone into a live inclinometer, displaying pitch and roll angles simultaneously for easy reading. It provides customizable warnings with visual and haptic feedback as you approach or exceed set limits. Designed for off-road enthusiasts, it offers a clear, glanceable view of your vehicle's tilt without needing GPS or an internet connection.

Highlights
  • Simultaneous pitch and roll display
  • Customizable caution and limit warnings
  • Haptic feedback for alerts
  • One-tap zeroing for mount angle
  • Multiple dashboard color themes
  • Works offline, no GPS or account needed
Features
Read full description

Lean turns your iPhone into a live inclinometer that's faster to read than a traditional gauge. It shows your vehicle's pitch and roll together, so a single look tells you your angle — climbing or descending, and how far you're leaning left or right. Set your own limits, and Lean warns you — amber as you approach, red at the limit. FEATURES • Pitch and roll in one view — read your vehicle's angle at a glance • Max Roll and Max Pitch — Lean holds your steepest angles for the drive; reset with a tap • Clean angle readouts in whole degrees — a plain "12°", never a signed "−12°" • One-tap Zero stores your mount angle, so Lean reads your vehicle's tilt, not the phone's • Rollover awareness — set caution and limit angles for roll and pitch, and Lean warns you with color and haptics as you near a limit • Share the angle — capture roll, pitch, and your warning color as a card • Ten dashboard color themes • Pick your rig — keep the classic deck, or swap in a live 3D wireframe Monster Truck or rubber duck that tilts with you • Portrait or landscape, in any mount — dashboard, vent, or a flat console charger • Built-in orientation lock — pin to portrait even when your device rotation is on • No GPS, no network, no account — everything runs on-device HOW IT WORKS Lean reads gravity directly from your iPhone's motion sensors to measure how far your vehicle is tilted — front-to-back (pitch) and side-to-side (roll). Park on level ground and tap Zero; Lean records your mount as the reference and measures every tilt from there. It shows both axes together, so you read your situation in one look instead of cross-referencing two gauges. Set caution and limit angles to match your rig, and Lean adds a warning on top — amber as you approach a limit, red at it, with haptics you feel without looking down. Roll is the axis that matters most for tipping, so the warning follows whichever of roll or pitch is nearer its limit. No GPS. No calibration drive. No account. Mount your iPhone in portrait, zero it once, and drive. GREAT FOR • Overlanders and rock-crawlers reading side-slopes and climbs • 4x4, off-road, and trail driving where knowing your angle matters • Anyone who wants a clear, glanceable read on roll and pitch • Sizing up an obstacle before you commit PRIVACY Lean is a pure motion app. It reads gravity from your iPhone's sensors and nothing else — no GPS, no network, no account. Your zero reference and settings stay on your device and are never uploaded. No account. No signup. No internet connection. No location permission. QUICK START 1. Mount your iPhone in portrait in a dashboard or vent mount 2. Park on level ground and tap Zero 3. Drive — your angle updates live as the terrain changes 4. Set your caution and limit angles in Settings to match your rig IMPORTANT Lean estimates tilt from your iPhone's motion sensors and is an aid, not a guarantee. It cannot account for loose surfaces, shifting loads, or sudden movement. Never rely on it as a substitute for your own judgment. Mount your phone safely, keep your eyes on the trail, and always drive responsibly and obey local laws.

Screenshots

Precision Toolkit4 screens
Lean4 screens

Verdict

The call

The clearest difference is in-app purchases: Lean at none against Precision Toolkit's 1. Lean also leads on iOS requirement (17.0 vs 26.0). On price, rating, ratings volume and update cadence 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. Lean 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 Precision Toolkit against 5.0 for Lean. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

Precision Toolkit ships an update every 2 weeks, Lean fortnightly. The most recent releases landed on September 26, 2026 and October 11, 2026 respectively.

Scorecard3 real differences · 7 level
Precision Toolkit versus Lean: the parameters behind the verdict, then further details
ParameterPrecision ToolkitLean
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 2 weeks — betterFortnightly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS26.017.0 — better
Further details — not scored
Size12 MB7 MB
Age rating4+4+
DeveloperGuruApps, LLCCarl Sieber

Customer experience

Precision Toolkit

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

Lean

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

In-app purchases

1 purchases

Precision Toolkit

Subscriptions1
  • Toolkit Pro Monthly$2.991 Month
None

Lean

No in-app purchases

Questions

Is Precision Toolkit free?
Precision Toolkit is free to download, with in-app purchases available.
Is Lean free?
Lean is free to download, with no in-app purchases.
Which has better reviews, Precision Toolkit or Lean?
Precision Toolkit and Lean are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Precision Toolkit or Lean have ads?
Neither Precision Toolkit nor Lean shows ads.
Which is updated more often, Precision Toolkit or Lean?
Precision Toolkit ships an update every 2 weeks, and Lean fortnightly. Most recently, Precision Toolkit was updated on September 26, 2026 and Lean on October 11, 2026.

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