Comparison

iEngineer vs Bearing

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

Head to head
About

iEngineer

Access a vast database of screw and bolt information, including dimensions, material grades, and strength properties for both US and metric fasteners. Features a comprehensive drill chart, unit conversion, and customizable material displays.

Highlights
  • Extensive US screw database
  • Metric screw database (in-app purchase)
  • Detailed dimensions and material grades
  • Strength, torque, and clamp force data
  • Head markings and 3D head models
  • Comprehensive drill chart
  • Unit conversion and data export
Features
Read full description

iEngineer is the most comprehensive database of screw/bolt information that you can find anywhere. US screws: -93 different screws from #0 to 4” -Dimensions for 9 standard head styles -74 material grades including SAE, ASTM, and other materials Metric Screws (available as in-app purchase): -210 different metric screws from M1.0 to M100 -Dimensions for 10 standard head styles for ISO, DIN, BS, and ANSI standards where available -86 material grades including 12 additional metric grades, SAE, ASTM, and other materials Displayed values for both the US and Metric screws include: -Standard dimensions -Tap sizes -Clearance hole sizes -Material strength -Recommended torque values -Clamp force -Shear force -Head markings display -3D model of head type -Standard dimensions of head type Other features: -Drill chart with 523 drill bit sizes -Fraction chart -Copy and paste data values -Fast and easy unit conversion -Ability to show/hide material grades in the interface so you only see what is relevant to you If you have any questions please contact us at support@perfectlysimpleapps.com

About

Bearing

Features
Read full description

Bearing Catalog — a comprehensive reference application for bearing specifications. Find the bearings you need by model number or exact dimensions and easily place orders. KEY FEATURES: - Search by standard model numbers (supports both ISO and GOST standards) - Find bearings based on precise dimensional specifications (inner diameter, outer diameter, width) - View detailed technical specifications - Save items to your list for future reference - Create and send orders to any organization via email An essential tool for engineers, mechanics, and industrial professionals who need quick access to bearing specifications.

Screenshots

iEngineer4 screens
Bearing4 screens

Verdict

The call

The clearest difference is in-app purchases: Bearing at none against iEngineer's 1. Bearing also leads on update cadence (every 2 months vs every 5 months) and iOS requirement (18.2 vs 26.0). On price, ads 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. iEngineer sells 1 one-off in-app purchase. Bearing asks for nothing beyond the download.

UpkeepUpdate frequency

iEngineer ships an update every 5 months, Bearing every 2 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
iEngineer versus Bearing: the parameters behind the verdict, then further details
ParameteriEngineerBearing
PriceFreeFree
Rating4.5 (201 ratings) — better—
Positive reviews85.5% of reviews—
Number of ratings201 — better—
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.018.2 — better
Further details — not scored
Size12 MB6 MB
Age rating4+4+
DeveloperPerfectly Simple Apps LLCAlexander Meshchenko

Bugs and requests

iEngineer

Reported bugs

2 issues
  • Metric portion not working for some users
  • Camera access request for no apparent reason

Requested features

4 requests
  • Add tap drill chart
  • Include clearance hole fits
  • Improve UI for larger displays
  • Add French language support

Bearing

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

iEngineer

One-time1
  • Metric Screws$1.99
None

Bearing

No in-app purchases

Questions

Is iEngineer free?
iEngineer is free to download, with in-app purchases available.
Is Bearing free?
Bearing is free to download, with no in-app purchases.
Do iEngineer or Bearing have ads?
Neither iEngineer nor Bearing shows ads.
Which is updated more often, iEngineer or Bearing?
iEngineer ships an update every 5 months, and Bearing every 2 months. Most recently, iEngineer was updated on November 1, 2026 and Bearing on November 6, 2026.

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