Comparison

Pipe Guide 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

Pipe Guide Calculator

This utility app provides essential calculations for pipe fitting, eliminating the need for reference tables. Designed by a welder for welders, it aims to save time and streamline work processes.

Highlights
  • All necessary computations in one place
  • Useful calculations for pipe fitting
  • Eliminates the need for tables
  • Saves time on the job
  • Designed for welders
Features
Read full description

Pipe Guide Calculator is the perfect tool for those who want all necessary computations in one place. The app gives you the most useful calculation that you need for pipe fitting. Pipe Guide Calculator eliminates all the tables and the best of all: you save time in your work. Created by a welder for welders.

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

Pipe Guide Calculator4 screens
FlowLine Isometric4 screens

Verdict

The call

The clearest difference is update cadence: FlowLine Isometric at every 6 weeks against Pipe Guide Calculator's every 12 months. Pipe Guide Calculator's advantage is iOS requirement (15.6 vs 26.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Pipe Guide Calculator ships an update every 12 months, FlowLine Isometric every 6 weeks. The most recent releases landed on October 4, 2026 and October 16, 2026 respectively.

Scorecard2 real differences · 8 level
Pipe Guide Calculator versus FlowLine Isometric: the parameters behind the verdict, then further details
ParameterPipe Guide CalculatorFlowLine Isometric
PriceFreeFree
Rating3.0 (4 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings4 — better—
Update frequencyEvery 12 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better26.0
Further details — not scored
Size19 MB23 MB
Age rating4+4+
DeveloperIT Welding Sweden ABJoshua Parkin

In-app purchases

None

Pipe Guide Calculator

No in-app purchases

None

FlowLine Isometric

No in-app purchases

Questions

Is Pipe Guide Calculator free?
Pipe Guide Calculator is free to download, with no in-app purchases.
Is FlowLine Isometric free?
FlowLine Isometric is free to download, with no in-app purchases.
Do Pipe Guide Calculator or FlowLine Isometric have ads?
Neither Pipe Guide Calculator nor FlowLine Isometric shows ads.
Which is updated more often, Pipe Guide Calculator or FlowLine Isometric?
Pipe Guide Calculator ships an update every 12 months, and FlowLine Isometric every 6 weeks. Most recently, Pipe Guide Calculator was updated on October 4, 2026 and FlowLine Isometric on October 16, 2026.

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