Comparison

iEngineer vs Nord

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

Nord

Access essential bolting information and calculations directly from your mobile device. Quickly find fastener dimensions, calculate torque and preload, and select the right hydraulic bolt tensioning tools for your applications.

Highlights
  • Bolt Load Calculator
  • Fastener Standards lookup
  • Torque and Preload calculation
  • ISO standard dimensions
  • Hydraulic bolt tensioning tool selection
  • Save multiple calculations
Features
Read full description

Whether you are looking for an easy method to calculate torque or a quick way to find fastener dimensions – we have the solutions for you. The Nord-Lock Toolkit allows you to access the information you need directly from your mobile device – so instead of worrying about bringing the correct documents to site, you can concentrate on solving bolting challenges. The tools included are: - Bolt+ Load Calculator The Boltplus Load Calculator will assist you in selecting the right hydraulic bolt tensioning tool for your standard flange application, or enquire for specialized tooling. Easily save multiple calculations, send inquiries regarding the tools and complete a custom tool request including uploading photos, drawings and CAD files - without leaving the NordLock Toolkit app! - Fastener Standards Created in cooperation with the Swedish Standards Institute (SSI) this tool allows you to find bolt dimensions directly from your mobile device. Simply enter the bolt size and length and you will be presented with dimensions that conform to ISO standards. No need to carry around any ISO table or bolt size charts anymore. - Torquelator Torquelator calculates preload and the corresponding torque for bolted joints secured with Nord-Lock original washers and Nord-Lock X-series washers. Two calculation methods are supported: Kellermann&Klein and VDI2230. Easily make calculations on-site, without having to carry a brochure around with you. - The Nord-Lock Group The Nord-Lock Group is a world leader in secure bolted solutions. Our mission is to safeguard human lives and customer investments. The Nord-Lock Group has been providing customers with high-quality, safe and innovative bolting solutions since 1982. Supporting our global customer base is our priority and you can find subsidiaries of our expanding sales organization in Europe, Americas and Asia. We also have a worldwide distribution network through sales partners and authorized distributors that will support you even if we do not currently have an office in your region. The Nord-Lock Group is wholly owned by Investment AB Latour, a company listed on the Stockholm Stock Exchange. Investment AB Latour is dedicated to the expansion of the Group and has supported our goals to continuously provide our customers with the best bolting solutions in the industry. This has included the acquisition of Superbolt Inc and P&S Vorspannsysteme AG (today Nord-Lock AG), in 2011; Boltight Limited, a leading hydraulic bolt tensioning company, in 2015 and the Expander System, an established company with the advanced solution to pivot wear, in 2016. These expansions bring together the most innovative and trusted bolt securing technologies in the world. The combined competence in our Group allows us to serve you, our global customers, with an impressive line-up of safe and cost-effective solutions for your critical applications.

Screenshots

iEngineer4 screens
Nord4 screens

Verdict

The call

The clearest difference is review sentiment: iEngineer at 86% against Nord's 0%. iEngineer also leads on rating (4.5 vs 1.0) and ratings volume (201 vs 1). Nord's advantage is in-app purchases (none vs 1) and update cadence (every 2 months vs every 5 months). 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. Nord asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iEngineer holds the better App Store score, 4.5 against 1.0. That said, the two scores are not equally well evidenced: iEngineer has 201 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 86% of iEngineer's written reviews are positive against 0% of Nord's.

UpkeepUpdate frequency

iEngineer ships an update every 5 months, Nord every 2 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

Scorecard7 real differences · 3 level
iEngineer versus Nord: the parameters behind the verdict, then further details
ParameteriEngineerNord
PriceFreeFree
Rating4.5 (201 ratings) — better1.0 (1 ratings)
Positive reviews85.5% of reviews — better0.0% of reviews
Number of ratings201 — better1
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS26.09.0 — better
Further details — not scored
Size12 MB9 MB
Age rating4+4+
DeveloperPerfectly Simple Apps LLCNord-Lock Group

Customer experience

iEngineer

All ratings197 ratings
Positive89.8%
Neutral4.1%
Negative6.1%
Written reviews159 reviews
Positive85.5%
Neutral6.3%
Negative8.2%

Nord

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Nord

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

iEngineer

One-time1
  • Metric Screws$1.99
None

Nord

No in-app purchases

Questions

Is iEngineer free?
iEngineer is free to download, with in-app purchases available.
Is Nord free?
Nord is free to download, with no in-app purchases.
Which has better reviews, iEngineer or Nord?
iEngineer is rated higher. iEngineer averages 4.5 out of 5 from 201 ratings, while Nord averages 1.0 from 1 ratings.
Do iEngineer or Nord have ads?
Neither iEngineer nor Nord shows ads.
Which is updated more often, iEngineer or Nord?
iEngineer ships an update every 5 months, and Nord every 2 months. Most recently, iEngineer was updated on November 1, 2026 and Nord on November 3, 2026.

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