SwiftSize vs Good Practices
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SwiftSize
This HVAC tool quickly calculates residential heating and cooling loads on-site. It streamlines the process for professionals, allowing for faster equipment sizing and more customer consultation time. Generate shareable PDF reports of your calculations.
- Quick heat load calculations
- On-site measurements
- Accurate equipment sizing
- Shareable PDF reports
- Minimizes engineering time
- Equipment changeout focus
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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.
Good Practices
This app provides essential data and calculators for plumbing and heating contractors installing gas-fired equipment in specific Enbridge Energy service areas. It references local codes and industry standards to ensure quality installations.
- Gas-fired equipment installation data
- Plumbing and heating calculators
- Enbridge Energy service area focus
- Reference to local codes and standards
- Information on IFGC, IRC, IMC, IPC, NEC, AGA, NBFU, NFPA
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Information contained in this app consists of data and calculators for plumbing and heating contractors engaged in the installation of gas-fired equipment only in the areas served by Enbridge Energy Utah/Wyoming/Idaho. Enbridge Energy Utah/Wyoming/Idaho provides retail gas-distribution service to customers in Utah, southwestern Wyoming and a small portion of southeastern Idaho. Information contained herein has been extracted from local codes adopted and incorporated by local authorities into heating or plumbing ordinances or codes and hence mandatory; however, the information does not attempt to set forth all requirements of any such ordinances or codes. Enbridge Energy Utah/Wyoming/Idaho recommends all plumbing and heating contractors become thoroughly familiar with the requirements of the applicable ordinances or codes, contained in the International Fuel Gas Code (IFGC), International Residential Code (IRC), International Mechanical Code (IMC), International Plumbing Code (IPC), National Electrical Code (NEC), American Gas Association (AGA) standards, National Board of Fire Underwriters (NBFU), National Fire Protection Association (NFPA), Enbridge Energy Utah/Wyoming/Idaho Policy & Procedures, as well as with the information contained herein so gas installations made by them will measure up to the proper standards of quality and workmanship. Enbridge Energy Utah/Wyoming/Idaho is not responsible for the safe or proper installation of gas piping, equipment or appliances beyond its meter and does not, by the publication and distribution of this information, assume any such responsibility. Although every effort is made to ensure the app data and calculators are accurate and updated on a timely basis, changes incorporated in may not be immediately reflected in this application.
Screenshots
Verdict
The clearest difference is price: Good Practices at Free against SwiftSize's $9.99. Good Practices also leads on review sentiment (63% vs 33%) and ratings volume (9 vs 3). SwiftSize's advantage is chart position (#22 vs unranked). On rating, update cadence, ads and in-app purchases 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
Good Practices is free to download; SwiftSize costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.0 for SwiftSize against 4.0 for Good Practices. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews are what separate them: 33% of SwiftSize's written reviews are positive against 63% of Good Practices's.
Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on September 24, 2026 and June 1, 2026 respectively.
| Parameter | SwiftSize | Good Practices |
|---|---|---|
| Price | $9.99 | Free — better |
| Rating | 4.0 (3 ratings) | 4.0 (9 ratings) |
| Positive reviews | 33.3% of reviews | 62.5% of reviews — better |
| Number of ratings | 3 | 9 — better |
| Update frequency | Every 7 months | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Best chart rank | #22 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.5 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 61 MB |
| Age rating | 4+ | 17+ |
| Developer | Design Comfort | Enbridge Inc. |
Customer experience
SwiftSize
Good Practices
In-app purchases
SwiftSize
No in-app purchases
Good Practices
No in-app purchases









