Comparison

Construction Calculator vs FlowLine Isometric

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

Head to head
About

Construction Calculator

This app is a powerful calculator designed for construction and woodworking professionals, as well as students. It simplifies calculations involving feet, inches, and fractions, offering conversions between various measurement units and displaying equations and results simultaneously. Advanced features are available through optional in-app purchases.

Highlights
  • Decimal to fraction converter
  • Fraction to decimal conversion
  • Simultaneous equation and result display
  • Advanced editing capabilities
  • Today Screen integration
  • Support for multiple dimensional formats
Features
Read full description

Award Winning Feet Inch Fraction Construction Calculator for iPhone and iPad. Designed with simplicity, usability and beauty in mind! FEATURES: - Elegant & Intuitive interface - Decimal to fraction converter - Fraction to decimal conversion - Displays both the equation & the result at the same time - Advanced editing by easily going back and forth - Can be added to Today Screen Ideal for those who work in construction, woodworking and for students to check up their homework! If you are looking for more advanced features you can upgrade to one or more of the following: - Stairs Calculator - Common Rafter Calculator - Hip/Valley Rafter Calculator - Triangle Calculator - Circular Calculator - Arc Calculator - Work in and convert between all building dimensional formats: feet-inch-fractions, inch fraction, yards, decimal feet (10th, 100th), decimal inches and metric (km, m, cm, mm) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

FlowLine Isometric

Features
Read full description

Flowline is a professional isometric piping diagram tool built for pipefitters, plumbers, mechanical engineers, and contractors who need to sketch and document pipe runs quickly on site or in the office. Draw in true isometric projection with a snap grid that keeps every line on axis. Flowline handles the geometry so you can focus on the layout.

Screenshots

Construction Calculator1 screens
FlowLine Isometric4 screens

Verdict

The call

The clearest difference is in-app purchases: FlowLine Isometric at none against Construction Calculator's 9. Construction Calculator's advantage is update cadence (every 6 days vs every 6 weeks) and iOS requirement (16.4 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. Construction Calculator sells 8 in-app purchases, starting at $4.99 per month. FlowLine Isometric asks for nothing beyond the download.

UpkeepUpdate frequency

Construction Calculator ships an update every 6 days, FlowLine Isometric every 6 weeks. Both last shipped on October 16, 2026.

Scorecard3 real differences · 7 level
Construction Calculator versus FlowLine Isometric: the parameters behind the verdict, then further details
ParameterConstruction CalculatorFlowLine Isometric
PriceFreeFree
Rating4.7 (625 ratings) — better—
Positive reviews53.7% of reviews—
Number of ratings625 — better—
Update frequencyEvery 6 days — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better26.0
Further details — not scored
Size49 MB23 MB
Age rating4+4+
DeveloperxNeat.comJoshua Parkin

Bugs and requests

Construction Calculator

Reported bugs

3 issues
  • Calculation errors and incorrect results
  • Freezing and crashing on certain devices
  • Compatibility issues with newer OS versions

Requested features

4 requests
  • Bring back fraction display in results
  • Allow offline use without subscription
  • Add more construction-specific tools
  • Improve user interface and usability

FlowLine Isometric

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Construction Calculator

Subscriptions2
  • Construction Calculator3 Days trial$4.991 Month
  • Construction Calculator7 Days trial$39.991 Year
One-time6
  • Themes$1.99
  • Calculator Plus$3.99
  • Rafter$4.99
Show 3 more
  • Stair Calculator$4.99
  • Fraction Calculator$9.99
  • Construction Calculator2 variants$14.99
None

FlowLine Isometric

No in-app purchases

Questions

Is Construction Calculator free?
Construction Calculator is free to download, with in-app purchases available.
Is FlowLine Isometric free?
FlowLine Isometric is free to download, with no in-app purchases.
Do Construction Calculator or FlowLine Isometric have ads?
Neither Construction Calculator nor FlowLine Isometric shows ads.
Which is updated more often, Construction Calculator or FlowLine Isometric?
Construction Calculator ships an update every 6 days, and FlowLine Isometric every 6 weeks. Most recently, Construction Calculator was updated on October 16, 2026 and FlowLine Isometric on October 16, 2026.

Other comparisons