Comparison

Navisizer vs Homans HVAC Pro+

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

Head to head
About

Navisizer

This app helps size domestic hot water heating systems for residential and commercial use. It calculates operating costs, savings, and generates comprehensive job specifications for Navien NPE Series tankless water heaters.

Highlights
  • Residential system sizing
  • Operating cost and savings calculation
  • Commercial application sizing (ASHRAE Hunter Curve)
  • Tankless and tankless with storage solutions
  • Comprehensive job specification output
  • Save, print, or email system specs
Features
Read full description

NaviSizer is designed to assist with sizing of domestic hot water heating systems with Navien NPE Series tankless water heaters. For residential applications, NaviSizer offers system sizing, calculation of operating cost and savings, and provides a comprehensive output to be used as a job spec. For commercial applications, NaviSizer uses ASHREA Hunter Curve calculations to size a broad range of applications. Both tankless and tankless with storage solutions are offered along with a comprehensive system spec that can be saved, printed, or emailed.

About

Homans HVAC Pro+

This app provides HVAC professionals with tools and information to streamline their work. Access product details, calculators, order status, and warranty information on the go. Find nearby branches, check inventory, and manage parts lists efficiently.

Highlights
  • Real-time order status
  • Duct calculator
  • Product availability and pricing
  • Warranty verification and claims
  • Parts list and superseded parts
  • Document access (spec sheets, diagrams)
  • Branch locator and directions
Features
Read full description

Homans strives to make life as an HVAC Professional easier, saving you time and hassle through innovation. Our mobile app provides access to product information and easy to use tools while on the go. * Now view real-time order status for all your orders (ORDER STATUS) * Duct calculator to help determine duct size, material and specifications for new installations and retrofits (CALCULATORS) * Sign in to link your online account to view prices, add to cart and check orders (SIGN IN) * See real-time availability for your preferred branch and other nearby Homans branches (PRODUCTS) * Search by system needs to find AHRI matched systems with real-time inventory and system pricing (AHRI) * Verify warranty entitlement and submit claims while in the field (WARRANTY) * Search for an HVAC equipment model, view the parts list and superseded parts, check availability at Homans locations (PARTS LIST) * View spec sheets, wiring diagrams, installation guides, consumer literature, etc. for Homans products (DOCUMENTS) * See nearby Homans locations, their hours of operation, get directions, call the store (STORES) * Receive push notifications of special offers & promotions at Homans * Scan QR code & UPC bar codes for fast product look ups * See turn by turn driving directions, through your favorite mapping app, to Homans locations * Light up attics, closets and basements while you work (FLASHLIGHT) * Also, the app now remembers your last 10 searches Our mission is to deliver the quality HVAC products you need, when you need them, and provide expert technical support. Our goal is to be your HVAC Supplier of Choice. We know you have a choice when buying all your HVAC related items. Thank you for trusting Homans. We are proud to have the opportunity to serve you.

Screenshots

Navisizer1 screens
Homans HVAC Pro+4 screens

Verdict

The call

The clearest difference is rating: Homans HVAC Pro+ at 4.7 against Navisizer's 2.4. Homans HVAC Pro+ also leads on update cadence (every 6 weeks vs every 4 months). Navisizer's advantage is monetization model (free vs ad-supported). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Homans HVAC Pro+ holds the better App Store score, 4.7 against 2.4. Both are backed by a comparable volume of ratings — 26 and 70 respectively.

UpkeepUpdate frequency

Navisizer ships an update every 4 months, Homans HVAC Pro+ every 6 weeks. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard3 real differences · 7 level
Navisizer versus Homans HVAC Pro+: the parameters behind the verdict, then further details
ParameterNavisizerHomans HVAC Pro+
PriceFreeFree
Rating2.4 (26 ratings)4.7 (70 ratings) — better
Positive reviews12.5% of reviews—
Number of ratings2670 — better
Update frequencyEvery 4 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.216.0 — better
Further details — not scored
Size21 MB165 MB
Age rating4+4+
DeveloperNavienWatsco, Inc.

Customer experience

Navisizer

All ratings26 ratings
Positive34.6%
Neutral0.0%
Negative65.4%
Written reviews16 reviews
Positive12.5%
Neutral0.0%
Negative87.5%

Homans HVAC Pro+

All ratings69 ratings
Positive92.8%
Neutral4.3%
Negative2.9%

In-app purchases

None

Navisizer

No in-app purchases

None

Homans HVAC Pro+

No in-app purchases

Questions

Is Navisizer free?
Navisizer is free to download, with no in-app purchases.
Is Homans HVAC Pro+ free?
Homans HVAC Pro+ is free to download, with no in-app purchases.
Which has better reviews, Navisizer or Homans HVAC Pro+?
Homans HVAC Pro+ is rated higher. Navisizer averages 2.4 out of 5 from 26 ratings, while Homans HVAC Pro+ averages 4.7 from 70 ratings.
Do Navisizer or Homans HVAC Pro+ have ads?
Neither Navisizer nor Homans HVAC Pro+ shows ads.
Which is updated more often, Navisizer or Homans HVAC Pro+?
Navisizer ships an update every 4 months, and Homans HVAC Pro+ every 6 weeks. Most recently, Navisizer was updated on November 2, 2026 and Homans HVAC Pro+ on November 6, 2026.

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