Comparison

Navisizer vs Conduit HVAC Toolkit

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

Conduit HVAC Toolkit

This iPad app empowers HVAC contractors to quickly scan homes, generate 3D models, and perform certified load calculations. Visualize installations with augmented reality and create professional reports to build customer trust and close more sales.

Highlights
  • LiDAR-powered home scanning
  • 3D model creation
  • ACCA-certified load calculations
  • Augmented reality equipment visualization
  • Professional report generation
  • Faster sales process
Features
Read full description

Conduit Tech is the LiDAR-powered design and sales platform for HVAC professionals. Our iPad-based solution enables contractors to scan homes, create 3D models, perform ACCA-certified load calculations, and visualize installations, all in under 15 minutes. We help HVAC contractors: • Transform complex load calculations into engaging visual sales tools • Create detailed 2D floor plans and 3D models without manual measurements • Visualize equipment placement using augmented reality • Generate professional reports that build customer trust • Close more deals and increase average ticket sizes Built specifically for residential HVAC contractors looking to stand out during in-home visits, Conduit works for traditional systems and heat pumps, while satisfying rebate and permitting requirements. Join thousands of successful HVAC contractors who are transforming their businesses with Conduit Tech. Scan homes, calculate loads, and close deals faster than ever before. Sign up now and transform your HVAC business!

Screenshots

Navisizer1 screens

Verdict

The call

The clearest difference is review sentiment: Conduit HVAC Toolkit at 100% against Navisizer's 13%. Conduit HVAC Toolkit also leads on rating (4.9 vs 2.4) and update cadence (every 3 weeks vs every 4 months). 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

Conduit HVAC Toolkit holds the better App Store score, 4.9 against 2.4. Both are backed by a comparable volume of ratings — 26 and 39 respectively. Written reviews point the same way: 13% of Navisizer's written reviews are positive against 100% of Conduit HVAC Toolkit's.

UpkeepUpdate frequency

Navisizer ships an update every 4 months, Conduit HVAC Toolkit every 3 weeks. The most recent releases landed on October 22, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
Navisizer versus Conduit HVAC Toolkit: the parameters behind the verdict, then further details
ParameterNavisizerConduit HVAC Toolkit
PriceFreeFree
Rating2.4 (26 ratings)4.9 (39 ratings) — better
Positive reviews12.5% of reviews100.0% of reviews — better
Number of ratings2639 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPad
Requires iOS17.2 — better18.6
Further details — not scored
Size21 MB85 MB
Age rating4+4+
DeveloperNavienConduit Tech

Customer experience

Navisizer

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

Conduit HVAC Toolkit

All ratings39 ratings
Positive97.4%
Neutral0.0%
Negative2.6%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Navisizer

No in-app purchases

None

Conduit HVAC Toolkit

No in-app purchases

Questions

Is Navisizer free?
Navisizer is free to download, with no in-app purchases.
Is Conduit HVAC Toolkit free?
Conduit HVAC Toolkit is free to download, with no in-app purchases.
Which has better reviews, Navisizer or Conduit HVAC Toolkit?
Conduit HVAC Toolkit is rated higher. Navisizer averages 2.4 out of 5 from 26 ratings, while Conduit HVAC Toolkit averages 4.9 from 39 ratings.
Do Navisizer or Conduit HVAC Toolkit have ads?
Neither Navisizer nor Conduit HVAC Toolkit shows ads.
Which is updated more often, Navisizer or Conduit HVAC Toolkit?
Navisizer ships an update every 4 months, and Conduit HVAC Toolkit every 3 weeks. Most recently, Navisizer was updated on October 22, 2026 and Conduit HVAC Toolkit on October 15, 2026.

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