Comparison

iAlignTest vs Metal Forming

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

Head to head
About

iAlignTest

Features
Read full description

An interactive reference tool for machine shaft alignment. It provides the common reference tables, specifications and charts for shaft alignment tolerance. Three main standards are included: 1- NASA Precision Alignment Specs (Ames Policy Directive APD 8830.1) 1.a) Alignment Tolerance for Soft Foot 1.b) Alignment Tolerance for Short Coupling: Horizontal and Angular 1.c) Alignment Tolerance for couplings with spacers 2- Common Tolerance Table with the RPM input for Angular, Parallel, and Spacer Shaft cases User selects the RPM range, enters alignment values and sees the alignment condition and tolerance range for the machine. 3- Interactive Alignment Tolerance Chart with three regions: Excellent, Acceptable, and Unacceptable. User enters RPM, offset and angles in both horizontal and vertical directions, and interactively sees the condition of the machine in the chart Features: - Shaft Alignment Specification: NASA Standard - Interactive Shaft Alignment Tolerance Table - Interactive Shaft Alignment Tolerance Chart in mm and inch - Email the results DISCLAIMER: iAlignTest is intended for educational purposes. Although the references in this App are made with great care, however it may contain errors and inaccuracies. Using the results of this App is the responsibility of the user.

About

Metal Forming

This tool provides accurate bending calculations for sheet metal forming. It features real-time unit conversion and an easy-to-use interface, optimized for performance and precision. Ideal for engineers, students, and professionals in mechanical engineering and fabrication.

Highlights
  • Accurate bending calculations
  • Real-time unit conversion
  • Easy-to-use interface
  • Supports multiple measurement systems
  • Optimized for performance
  • Clean and intuitive UI
Features
Read full description

Metal Forming Calculator is a powerful tool designed for engineers, students, and professionals working with sheet metal forming. KEY FEATURES: • Accurate bending calculations • Real-time unit conversion (cm, inch, etc.) • Easy-to-use interface • Supports multiple measurement systems • Optimized for performance and precision WHY CHOOSE THIS APP? • Fast and reliable calculations • Clean and intuitive UI • Designed with modern Flutter technology USE CASES: • Mechanical engineering • Manufacturing & fabrication • Academic learning Download now and simplify your sheet metal forming calculations! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iAlignTest4 screens
Metal Forming4 screens

Verdict

The call

The clearest difference is in-app purchases: iAlignTest at none against Metal Forming's 2. Metal Forming's advantage is update cadence (every 6 weeks vs every 32 months). On price, ads, device support and iOS requirement 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. Metal Forming sells 2 in-app purchases, starting at $14.99 per year. iAlignTest asks for nothing beyond the download.

UpkeepUpdate frequency

iAlignTest ships an update every 32 months, Metal Forming every 6 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 7 level
iAlignTest versus Metal Forming: the parameters behind the verdict, then further details
ParameteriAlignTestMetal Forming
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 32 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.0 — better15.6
Further details — not scored
Size8 MB45 MB
Age rating+44+
DeveloperMotionics LLCTran Van Huan

In-app purchases

None

iAlignTest

No in-app purchases

2 purchases

Metal Forming

Subscriptions1
  • Metal Forming Pro$14.991 Year
One-time1
  • MetalForming Lifetime$19.99

Questions

Is iAlignTest free?
iAlignTest is free to download, with no in-app purchases.
Is Metal Forming free?
Metal Forming is free to download, with in-app purchases available.
Do iAlignTest or Metal Forming have ads?
Neither iAlignTest nor Metal Forming shows ads.
Which is updated more often, iAlignTest or Metal Forming?
iAlignTest ships an update every 32 months, and Metal Forming every 6 weeks. Most recently, iAlignTest was updated on November 1, 2026 and Metal Forming on October 31, 2026.

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