---
title: "SwiftSize - Bewertungen, Einnahmen und Downloads in Vereinigte Staaten | Apple App Store"
description: "SwiftSize is an HVAC (heating, ventilation, and air conditioning) load calculator for residences.  It is designed to very quickly measure off a home's exposures "on the fly" and produce accurate resul"
---

# SwiftSize — Vereinigte Staaten
> Quick Heat Load Calculator

![SwiftSize App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/78/68/9f/78689ff7-6d43-1e42-d0cb-f6e54d38912c/AppIcon-0-0-1x_U007emarketing-0-11-0-85-220.png/434x0w.png)

**Developer:** [Design Comfort](https://apptail.io/de/developer/design-comfort-oPHd)
**Category:** Business
**Rating:** 4.0/5 (3 ratings)
**Price:** $9.99
**Bundle ID:** com.designcomfortco.SwiftSize
**Store:** Apple App Store
**Country:** Vereinigte Staaten
**Version:** 2.1.2 (released 2025-08-01)
**Original Release:** 2015-01-14
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id942306458)
**AppTail Page:** [https://apptail.io/de/app/swiftsize-qfMe/united-states](https://apptail.io/de/app/swiftsize-qfMe/united-states)

## SwiftSize Description
SwiftSize is an HVAC (heating, ventilation, and air conditioning) load calculator for residences.  It is designed to very quickly measure off a home's exposures "on the fly" and produce accurate results for sizing heating and air conditioning equipment.

Now generates a shareable PDF Report!

It is designed to minimize the on-site engineering time required by the HVAC professional.  Less time engineering means more one-on-one time with the customer!

HVAC heat loads can be a cumbersome and time consuming and tend to distract from time spent consulting.  SwiftSize addresses this problem by allowing complete heat loads to be performed in mere minutes.  If it takes you more than 10 minutes with SwiftSize you're doing something wrong!

SwiftSize is not a comprehensive room-by-room heat loss/heat gain/CFM calculator.  If it were it would be SlowSize!  It's intended for the equipment changeout market, not the new construction market.

## SwiftSize Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1a/f3/4e/1af34e94-1bc7-6c21-979d-8def71e0f320/Main_SwiftUI_View.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/98/eb/1c/98eb1cf0-d45a-cf2f-8bcb-1e98a7e45bc3/Design_SwiftUI_View.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8a/72/97/8a729787-b3a0-dd41-daa9-1ebe04b41486/Total_SwiftUI_View.png/1320x2868.png)

## SwiftSize Rating Breakdown in Vereinigte Staaten
- 5 stars: 1 (33%)
- 4 stars: 1 (33%)
- 3 stars: 1 (33%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## SwiftSize Reviews in Vereinigte Staaten

### ***-- "Not ready for prime time"
I used to use a different app for load calculations.  This one gave an inaccurate calculation and there isn’t a way to figure out what is wrong.  I started with my own house and know the exact load due to temperatures hitting design temps for 2 days straight.  This said I needed 66% more capacity.
-- jasin s, 2023-05-07

### ***** "Equipment sizing"
Great accurate app for ensuring I’ve got the right equipment for the job, loads are precise and the video is super helpful to understand the way to use the app.
-- bignobyg, 2022-02-23

### *---- "Paid for junk"
Poorly designed won’t save anything or allow the information be printed off so we can give it to an inspector. What a waste of money and time for what so I can buy an app that does work.
-- valthazor, 2018-04-12

### *---- "Do not download"
This app does not do what it says. Interface is very poorly designed.
-- RevB, 2018-04-06

### *---- "Skip this app"
Does not save data, incomplete insulation options.  This is not a finished product.
-- Hotpuppy, 2015-07-08

### ***** "SwiftSize load app"
This app is great and all we need most of the time. I use 3 other iPad apps also and have done long hand manual J for 30 plus years. This is the one that will be a first to use from now on.
Thank you very much.
-- Jim the tinner, 2015-01-15

[View all SwiftSize reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)


## SwiftSize Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Bezahlt | Vereinigte Staaten | Business | #22 |


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## SwiftSize Available In
- [Vereinigte Staaten](https://apptail.io/de/app/swiftsize-qfMe/united-states)
- [Australien](https://apptail.io/de/app/swiftsize-qfMe/australia)
- [Kanada](https://apptail.io/de/app/swiftsize-qfMe/canada)

---

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