Comparison

Kablo vs Psychrometric Chart

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

Head to head
About

Kablo

Features
Read full description

Kablo, calculates cable type and size, finds circuit breaker nominal break current and draws single line diagrams for main distribution or MCC panels power outputs for 3P or 1P 50Hz electrical circuits. Because you can change parameters easily and see the effect of that changes immediately, you might be able to make better decision selecting right cables or breakers. Using Kablo, you can make one quick calculation for one load or you can make calculation for several projects with up to 50 loads then you can send results as single line diagrams which can be opened by well known CAD softwares or you may prefer PDF output could be send by email or opened by iBook or any other PDF reader installed to your device. In case you use project option, the parameters you input is kept at your device. For calculations you have to input load parameters as usual but app supply comman parameters as default all you must do is changing defaults according to your needs. There is some difference about In ( nomınal breking current for breaker) calculation; Application finds the min nominal breaker current (In) but you may input higher current because breaker could be already installed or there could be a special load requires different In. Unless you input breaking current again at next calculation App finds In itself so inputing breaker current (In) as last parameter, may be a good idea. Application finds multicore cables up to 300mm² . Calculated cables should be considered as minumum cable size could be used. Also, never forget that, min and max short circuit currents are not taken into account yet. Findings of Kablo should be taken account as reference source and checked by an engineer.

About

Psychrometric Chart

An interactive tool for HVAC engineers to create and manipulate psychrometric charts. Model various air processes, add and adjust state points with live property updates, and save multiple charts. Export your designs as PDFs or via AirPrint.

Highlights
  • Interactive psychrometric charts
  • Model air mixing and heating/cooling
  • Live state point adjustment
  • SI and IP unit support
  • Save and manage multiple charts
  • Export charts as PDF
  • AirPrint compatibility
Features
Read full description

Interactive, graphical psychrometric chart app for HVAC engineers and designers. Allows you to create and manipulate charts and state points with the touch of your finger(s). Processes that can be modeled include: • An individual state point. • Air mixing. • Sensible heating. • Sensible cooling. • Cooling coils. • Other processes by connecting state points. Add new state points by double tapping anywhere on the chart. Hold and drag existing state points to move them on the graph, with properties values updating live to aid you in setting them to the right value. Works in both SI and IP units. Allows you to create and save multiple charts. Properties and energy change for connected points are calculated and displayed live. Share your charts by exporting a PDF file or sending to an AirPrint device. Works on both the iPhone and iPad, but best used on the larger screen of the iPad. ------ We would very much like your feedback! Suggestions, complements, complaints, bug reports etc.: http://www.pheinex.com/contact/ If you like this app, please do not forget to rate it in the App Store! ----- Notes: This application (App) is provided for use by qualified HVAC engineers and designers in the design of air handling systems and is not a substitute for appropriate design services. When in doubt, contact a design

Screenshots

Kablo4 screens
Psychrometric Chart2 screens

Verdict

The call

The clearest difference is price: Kablo at $9.99 against Psychrometric Chart's $59.99. On update cadence, 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

Kablo costs $9.99 and Psychrometric Chart $59.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on May 16, 2026 and September 20, 2026 respectively.

Scorecard1 real difference · 9 level
Kablo versus Psychrometric Chart: the parameters behind the verdict, then further details
ParameterKabloPsychrometric Chart
Price$9.99 — better$59.99
Rating—4.4 (34 ratings) — better
Positive reviews—33.3% of reviews
Number of ratings—34 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.015.0
Further details — not scored
Size2 MB32 MB
Age rating4+4+
DeveloperUMIT CELENPheinex, LLC

In-app purchases

None

Kablo

No in-app purchases

None

Psychrometric Chart

No in-app purchases

Questions

Is Kablo free?
Kablo costs $9.99, with no in-app purchases.
Is Psychrometric Chart free?
Psychrometric Chart costs $59.99, with no in-app purchases.
Do Kablo or Psychrometric Chart have ads?
Neither Kablo nor Psychrometric Chart shows ads.
Which is updated more often, Kablo or Psychrometric Chart?
Kablo ships an update every 3 months, and Psychrometric Chart every 3 months. Most recently, Kablo was updated on May 16, 2026 and Psychrometric Chart on September 20, 2026.

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