---
title: "Navisizer - Reviews, Revenue and Downloads in United States | Apple App Store"
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, calcula"
---

# Navisizer — United States

![Navisizer App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/e8/3e/45/e83e45ba-ad14-b77b-c942-92f36cf76a37/AppIcon-0-0-1x_U007emarketing-0-7-0-85-220.png/434x0w.png)

**Developer:** [Navien](https://apptail.io/developer/navien-Mglb)
**Category:** Productivity
**Rating:** 2.4/5 (26 ratings)
**Price:** Free
**Bundle ID:** com.navien.calculator
**Store:** Apple App Store
**Country:** United States
**Version:** 3 (released 2024-04-29)
**Original Release:** 2017-12-26
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1327385997)
**AppTail Page:** [https://apptail.io/app/navisizer-KQcb/united-states](https://apptail.io/app/navisizer-KQcb/united-states)

## Navisizer 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.

## Navisizer Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource112/v4/9e/52/fa/9e52fa0f-9d36-2803-f74b-784ed38735e8/c3337e41-0eac-4fc8-b86c-43db70943ce0_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-07-06_at_10.18.46.png/1242x2688.png)

## Navisizer Rating Breakdown in United States
- 5 stars: 8 (31%)
- 4 stars: 1 (4%)
- 3 stars: 0 (0%)
- 2 stars: 1 (4%)
- 1 stars: 16 (62%)

## Navisizer Reviews in United States

### ***** "Great APP, accurate results"
This APP uses real conditions and the Hunter curve to accurately size tankless units for both my residential and commercial projects. I’m quite happy with the results.
-- rottenSalsa, 2022-07-06

### *---- "Dysfunctional"
Filled out the required fields, but not accepting it.
-- RBSkye, 2020-09-09

### *---- "Ask a lot and explain nothing"
I am a homeowner. I am interested in this product and was hoping this app could connect me to either a licensed retailer or someone qualified to install it. I found neither. When they ask you for different information about your use of water, flow rate, gas bills, etc, they use too many acronyms and don’t explain what they are or how a layman can calculate any of it. They don’t explain the different products either or what the differences are. They need to go back and rethink this app for people who aren’t plumbers or engineers.
-- Jalapeño hvdjs, 2020-08-16

### *---- "Stupid app."
You can’t even make registration form to work what else you expect to work.
-- iCelerate, 2020-07-17

### *---- "Don’t bother"
App is terrible. You can’t even enter how many people are in the house it just bugs out. Don’t waste your time.
-- MikeyJay224, 2020-01-12

### *---- "Login"
Filled out NaviSizer new user form and was blocked by a required fields request. Odd, since all fields were completed. 
I could guess at the sizing of my need. 
It appears the app needs some love. 
Now it requires a Capcha input with no place to input.
-- PeteyD22, 2020-01-09

### *---- "App is terrible"
I’m not even sure this is a legit app. Then, who wants to give the name and address of potential customers? I’m sure they would want to approve the sharing of their information.
-- mtown rent dude, 2020-01-08

### *---- "You want my customer info, really?"
I find it rather annoying that you require that I enter my “potential” clients information in order to access the sizer.
-- SeeGreek, 2019-09-11

### *---- "Don’t see the point"
Doesn’t really seem to size anything... pretty pointless imo
-- Cser654321, 2019-04-18

### **--- "Buggy"
App is very buggy and does not have a well designed UI. When I came to the part of the app to enter number of people and number of bathrooms I would click on the field and the keyboard would open briefly and then close and I was not able to enter any of the information.
-- choir_boy, 2019-03-25

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



## Navisizer Discovered Keywords
- navien
- navisizer

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## Navisizer Available In
- [United States](https://apptail.io/app/navisizer-KQcb/united-states)
- [Canada](https://apptail.io/app/navisizer-KQcb/canada)

---

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