Comparison

Klimatbyrån vs Ventappen

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

Head to head
About

Klimatbyrån

Features
Read full description

With our K factor application, you can commission Klimatbyrån's ventilation products such as air diffusers and dampers. The app database contains K factors for our current products. It also contains all historical k factors for expired product versions and legacy products. When launching the app, an automatic check is made to ensure that your device is updated with the latest k factors, if necessary, the app is updated with the lastest K factors in a few seconds (requires internet). This means that the app stores all K factors locally on your device and can be used in offline mode on a regular basis. With the app it is possible to: • Calculate the K factor, flow or pressure of our products • Use the calculator to calculate k factor, flow and pressure for other products that are not in the database. • Download maintenance documents for products via our website (SE-versions, requires internet). • Get in touch with Klimatbyrån's sales offices via e-mail or telephone. Product Identification: • Installed products are identified by the product label, containing:     – Product name     – Product size     – Manufacturing date, 4 digits (YY-WW). KB Klimatbyrån AB has supplied ventilation equipment in Sweden since 1977. Today, our range includes air diffusers, chilled beams, dampers, measuring units, sound attenuators, a full range of VAV and DCV products and textile ventilation systems. We also specialize in air humidifiers and laboratory/clean room system solutions via our subsidiary Umecto AB. In Denmark, our products are sold by Netavent A/S.

About

Ventappen

Features
Read full description

Ventappen hjälper dig med de vanligast förekommande ventilationsberäkningarna! VoltAir System AB, som producerar marknadens mest energieffektiva luftbehandlingssystem, erbjuder ett beräkningshjälpmedel för ventilationstekniska beräkningar – Ventappen. Ventappen hjälper dig med de vanligast förekommande formlerna för beräkning av ventilationssystem: Temperaturverkningsgrad, värme- och kyleffekt, beräkning av flöde och hastighet, fläktlagarna samt k-faktor beräkning. Nu kan du spara mycket tid genom att göra dessa beräkningar direkt i din mobil. För mer information om VoltAir System AB och våra energieffektiva produkter se vår hemsida http://www.voltairsystem.com

Screenshots

Klimatbyrån3 screens
Ventappen1 screens

Verdict

The call

The clearest difference is update cadence: Klimatbyrån at every 4 months against Ventappen's every 65 months. Ventappen's advantage is iOS requirement (8.0 vs 12.4). 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

Klimatbyrån ships an update every 4 months, Ventappen every 65 months. The most recent releases landed on October 14, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 4 level
Klimatbyrån versus Ventappen: the parameters behind the verdict, then further details
ParameterKlimatbyrånVentappen
PriceFreeFree
Update frequencyEvery 4 months — betterEvery 65 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.48.0 — better
Further details — not scored
Size22 MB3 MB
Age rating4+4+
DeveloperKlimatbyrån ABVoltAir System AB

In-app purchases

None

Klimatbyrån

No in-app purchases

None

Ventappen

No in-app purchases

Questions

Is Klimatbyrån free?
Klimatbyrån is free to download, with no in-app purchases.
Is Ventappen free?
Ventappen is free to download, with no in-app purchases.
Do Klimatbyrån or Ventappen have ads?
Neither Klimatbyrån nor Ventappen shows ads.
Which is updated more often, Klimatbyrån or Ventappen?
Klimatbyrån ships an update every 4 months, and Ventappen every 65 months. Most recently, Klimatbyrån was updated on October 14, 2026 and Ventappen on October 7, 2026.

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