Comparison

Walter Safety vs Level Tool・Inclinometer

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

Head to head
About

Walter Safety

This app provides metal workers and welders with essential tools and information for their daily tasks. It offers charts for optimal settings on grinders, drill bits, and cutters, along with a grinding angle guide and a unit converter.

Highlights
  • Drill bit speed chart
  • Annular cutter chart
  • Abrasive speed chart
  • Grinding angle guide
  • Unit converter
  • Built-in level tool
  • Flashlight functionality
Features
Read full description

Brought to you by Walter Surface Technologies, Walter Safety is the ultimate app for your iPhone! Designed like a digital Swiss knife, it will help metal workers and welders in their everyday tasks in a totally new way. Whether you need to know the optimal settings for your grinder, or just wish to enlighten your world, Walter Safety is built for you. -Drill bit speed chart: Provides the optimal RPM (rotation per minute) per Walter drill bit. Recommendations are based on the size of the bit and on the type of metal you want to drill. -Annular cutter chart: Provides the optimal RPM (rotation per minute) per Walter annular core cutter. Recommendations are based on the size of the core cutter and on the type of metal you want to cut.  -Abrasive speed chart: Provides the maximum RPM (rotation per minute) for all Walter abrasives, helping to ensure the safe use of Walter products. -Grinding angle: To ensure both safety and performance, this app provides you with the optimal angle to use when grinding with different types of Walter abrasives. -Flashlight: Are you in the dark? Use your iPhone 4, 4S or 5 to illuminate your world.  -Unit Converter: Allows you to easily convert from one unit of measure to another.

 -Level: Allows you to determine how level a surface is.

About

Level Tool・Inclinometer

This app transforms your smartphone into a precise spirit level and digital angle finder. It offers instant feedback with visual and haptic cues for perfect alignment, and allows you to save readings with their error margins. Useful for DIY projects, hanging pictures, and furniture placement.

Highlights
  • Precise spirit level
  • Digital angle finder
  • Instant visual and haptic feedback
  • Save readings with error margins
  • Relative zero setting
  • Audible level cue
Features
Read full description

Level Tool turns your phone into a precise spirit level and digital angle finder — no extra hardware needed. • Bubble level — lay the phone flat for a 2D bullseye bubble, or stand it against a surface for a vertical level. The ring turns green and the phone buzzes the instant you're level. • On Edge — Stand your phone on its long edge on the surface. • Digital inclinometer — read tilt and slope in real time as degrees. • No level surface needed — Put the phone down, turn it half a circle, and it works out its own error. The surface itself doesn't have to be level. • Instant feedback — clear read-outs plus haptic confirmation when a surface is perfectly aligned. • Saved — Tap Save on the Level or Angle screen to keep a reading together with its tolerance and margin of error. • Extra tools — set a relative zero, hold a reading, enable an audible level cue, and display degrees, percent slope or roof pitch. Useful for pictures, shelves, furniture and quick DIY checks. Readings depend on the phone sensors and calibration. Some of the features described require a one-time purchase. Terms of Use: https://zeroplay.io/docs/legal/terms-of-service Privacy Policy: https://zeroplay.io/docs/legal/privacy-policy

Screenshots

Walter Safety4 screens
Level Tool・Inclinometer4 screens

Verdict

The call

The clearest difference is in-app purchases: Walter Safety at none against Level Tool・Inclinometer's 1. Walter Safety also leads on ads (none vs shown) and iOS requirement (7.0 vs 15.1). Level Tool・Inclinometer's advantage is update cadence (every 2 months vs every 5 months). On price 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. Level Tool・Inclinometer sells 1 one-off in-app purchase. Walter Safety asks for nothing beyond the download.

UpkeepUpdate frequency

Walter Safety ships an update every 5 months, Level Tool・Inclinometer every 2 months. The most recent releases landed on October 29, 2026 and October 7, 2026 respectively.

Scorecard5 real differences · 5 level
Walter Safety versus Level Tool・Inclinometer: the parameters behind the verdict, then further details
ParameterWalter SafetyLevel Tool・Inclinometer
PriceFreeFree
Rating—4.5 (2 ratings) — better
Positive reviews80.0% of reviews—
Number of ratings—2 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS7.0 — better15.1
Further details — not scored
Size46 MB101 MB
Age rating4+4+
DeveloperJ. Walter Compagnie Lt�ZeroPlay Ltd.

Customer experience

Walter Safety

Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Level Tool・Inclinometer

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Walter Safety

No in-app purchases

1 purchases

Level Tool・Inclinometer

One-time1
  • Lifetime Access$14.99

Questions

Is Walter Safety free?
Walter Safety is free to download, with no in-app purchases.
Is Level Tool・Inclinometer free?
Level Tool・Inclinometer is free to download, with in-app purchases available.
Do Walter Safety or Level Tool・Inclinometer have ads?
Level Tool・Inclinometer shows ads; Walter Safety does not.
Which is updated more often, Walter Safety or Level Tool・Inclinometer?
Walter Safety ships an update every 5 months, and Level Tool・Inclinometer every 2 months. Most recently, Walter Safety was updated on October 29, 2026 and Level Tool・Inclinometer on October 7, 2026.

Other comparisons