Comparison

Fit Tolerance ISO vs Flat Pattern Bend Calculator

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

Head to head
About

Fit Tolerance ISO

Calculates engineering tolerances for various mechanical components based on ISO and ANSI standards. It determines size limits, deviations, and fit types for holes and shafts, offering schematic representations of fits.

Highlights
  • Calculates engineering tolerances
  • Supports ISO and ANSI standards
  • Determines clearance, transition, and interference fits
  • Provides schematic fit representations
  • Includes preferred tolerances and fits
  • Works with metric units
Features
Read full description

Limits, fits and tolerances calculator has been developed to calculate engineering tolerances of inner and outer features of journal bearings, linear bearings, thrust bearings, bushings, ball bearings, roller bearings, housings, cylinder bores, drilled holes, linear and precision shafts, pistons, etc. The calculator works in line with ISO 286-1 (2010), ISO 286-2 (2010) and ANSI B4.2 (1978) standards which are based on metric units. According to the input parameters of nominal size and hole/shaft tolerances, size limits and deviations for hole/shaft are calculated and fit type is selected among the clearance, transition and interference fits. The schematic representation of the fit is also drawn. The preferred tolerances and fits advised by ISO and ANSI standards can be found in the "Supplements" section.

About

Flat Pattern Bend Calculator

This app provides accurate flat pattern layouts for complex sheet metal shapes and transitions. It simplifies calculations for cones, frustums, cylinders, and various transition pieces, saving time and reducing errors in fabrication projects.

Highlights
  • Cone calculations
  • Frustum calculations
  • Truncated cylinder layouts
  • Bend allowance calculations
  • Transition piece generation
  • Complex shape patterns
Features
Read full description

Unlock the power of advanced sheet metal calculations right at your fingertips. Flat Pattern Bend Calculator is a comprehensive tool designed for engineers, fabricators, and designers who need quick and accurate flat pattern layouts for a variety of complex shapes and transitions. This app simplifies complex metal sheet calculations, enabling users to accurately calculate flat pattern bends for various shapes and structures ► Key Features: Cone Calculations: Easily generate flat patterns for conical shapes. Frustum Eccentric (Parallel & Angle): Compute flat patterns for both parallel and angled eccentric frustums with precision. Truncated Cylinder: Obtain accurate layouts for truncated cylindrical shapes. Bend Allowance Calculations: Calculate bend allowances and deductions for various angles to ensure perfect bends every time. ► Transition Pieces: Rectangle to Circle: Seamlessly transition between rectangular and circular shapes. Rectangle to Circle Eccentric: Handle off-center transitions with ease. Circle to Rectangle: Convert circular shapes to rectangular patterns effortlessly. Rectangle to Rectangle: Calculate flat patterns for rectangular transitions. Complex Shapes: Pants & Pants Eccentric: Design complex bifurcated ducts and fittings. Breeches: Create layouts for Y-shaped connections. Tees: Generate patterns for T-shaped junctions. Pyramid: Calculate flat patterns for pyramid-shaped objects. Auger: Design helical screw patterns with precision. Sphere: Compute flat layouts for spherical shapes. Flange: Generate accurate flange patterns for pipe fittings. Why Choose Our App? • Efficiency: Reduce manual calculations and save valuable time on your projects. • Accuracy: Minimize errors with precise computations tailored to your specific needs. • User-Friendly Interface: Intuitive design makes complex calculations accessible to everyone. • Versatility: Ideal for HVAC ductwork, industrial piping, metal roofing, and custom fabrication projects. • Instant Results: Get immediate calculations to accelerate your workflow. Who Can Benefit? • Sheet Metal Fabricators • Mechanical Engineers • HVAC Professionals • Metalworkers and Welders • Industrial Designers • Students and Educators in Engineering Fields Take Your Fabrication Projects to the Next Level! Say goodbye to cumbersome manual calculations and hello to streamlined efficiency. Download the Sheet Metal Flat Pattern Calculator now and experience the future of metal fabrication. Download Today and Start Shaping Your Success! Privacy Policy : https://forms.gle/dnBUgnpqw4AREio97 Terms of Use : https://forms.gle/2uy2JqJa2JjkTZpo8

Screenshots

Fit Tolerance ISO4 screens
Flat Pattern Bend Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Fit Tolerance ISO at none against Flat Pattern Bend Calculator's 6. Fit Tolerance ISO also leads on rating (5.0 vs 4.6). Flat Pattern Bend Calculator's advantage is update cadence (every 6 weeks vs every 12 months) and ratings volume (152 vs 2). 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. Flat Pattern Bend Calculator sells 6 in-app purchases, starting at $4.99 per month. Fit Tolerance ISO asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Fit Tolerance ISO holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Flat Pattern Bend Calculator has 152 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Fit Tolerance ISO ships an update every 12 months, Flat Pattern Bend Calculator every 6 weeks. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard5 real differences · 5 level
Fit Tolerance ISO versus Flat Pattern Bend Calculator: the parameters behind the verdict, then further details
ParameterFit Tolerance ISOFlat Pattern Bend Calculator
PriceFreeFree
Rating5.0 (2 ratings) — better4.6 (152 ratings)
Positive reviews—46.9% of reviews
Number of ratings2152 — better
Update frequencyEvery 12 monthsEvery 6 weeks — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size51 MB91 MB
Age rating4+4+
DeveloperYasar Yucel YesilbagBhavinkumar Satashiya

Customer experience

Fit Tolerance ISO

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

Flat Pattern Bend Calculator

All ratings151 ratings
Positive90.1%
Neutral1.3%
Negative8.6%
Written reviews32 reviews
Positive46.9%
Neutral6.3%
Negative46.9%

In-app purchases

None

Fit Tolerance ISO

No in-app purchases

6 purchases

Flat Pattern Bend Calculator

Subscriptions5
  • MONTHLY UNLOCK$4.991 Month
  • Weekly Subscription$4.997 Days
  • Offer : Yearly Access$19.991 Year
Show 2 more
  • YEARLY UNLOCK3 Days trial$29.991 Year
  • Yearly Access$39.991 Year
One-time1
  • LIFETIME UNLOCK$49.99

Questions

Is Fit Tolerance ISO free?
Fit Tolerance ISO is free to download, with no in-app purchases.
Is Flat Pattern Bend Calculator free?
Flat Pattern Bend Calculator is free to download, with in-app purchases available.
Which has better reviews, Fit Tolerance ISO or Flat Pattern Bend Calculator?
Fit Tolerance ISO is rated higher. Fit Tolerance ISO averages 5.0 out of 5 from 2 ratings, while Flat Pattern Bend Calculator averages 4.6 from 152 ratings.
Do Fit Tolerance ISO or Flat Pattern Bend Calculator have ads?
Both Fit Tolerance ISO and Flat Pattern Bend Calculator show ads.
Which is updated more often, Fit Tolerance ISO or Flat Pattern Bend Calculator?
Fit Tolerance ISO ships an update every 12 months, and Flat Pattern Bend Calculator every 6 weeks. Most recently, Fit Tolerance ISO was updated on November 2, 2026 and Flat Pattern Bend Calculator on November 6, 2026.

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