Comparison

Hydronic vs MyWattsun

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

Head to head
About

Hydronic

Features
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Hydronic HVAC Toolkit App is a tool that provides most common info on a range of HVAC equipment manufactured by Modine (unit heaters โ€“ gas-fired, steam/hot-water, electric), Koldwave (portable ACs), Reflected Heat Design (infrared tube heaters), Radiant Electric Heat (infrared), Continental Fans, ThermoTek (kitchen heating & ventilation systems), RBI (boilers / hot water heaters), KN Series (cast iron boilers). You can find info such as combustion, electrical, venting, dimensions, weight, clearance to combustibles, common parts list, etc. on Modine unit heaters; competitive cross-reference for infrared tube heaters and more. Also, new in this revision is a Make-Up Air Selection Form that allows you to quickly submit specs and pics for a reliable, application accurate quote. You also receive specs submitted via the form, emailed to you for your records. Hydronic Toolkit app is a quick reference guide for engineers specifying Modine unit heaters in HVAC projects, Modine re-sellers (counter sales, outside sales) selling Modine unit heaters and contractors installing them. It allows quick access to Modine unit heater specs on-site or when you are not in front of a PC/laptop. At your fingertips is info available on all these Modine unit heaters โ€“ a) Eleven gas-fired models, sizes available from 30,000-400,000 Btu/hr. input b) Seven steam/hot-water models, sizes available from 18,000-952,000 Btu/hr. (@ 2psi steam) c) Four electric models, sizes available from 5-50 kW

About

MyWattsun

Features
Read full description

MyWattsun is a Solar PV app. MyWattsun helps you to work and manage your technical and sales requirement wherever you are. MyWattsun is a marketplace and a common platform that connects Consumers, PV Installers, DisComs and State Nodal Agencies. MyWattsun app allows user to: 1. Create Solar PV (SPV) Design (Map based UI to calculate the size of the SPV system that can be installed) 2. Calculate Savings and Payback of investment 3. Get verified Solar PV Installers and quotes 4. Financial Analysis 5. Generate techno-commercial report 6. Manage solar sales with mobile, fast and colourful project management system The MyWattsun App changes the way end customers and rooftop solar professionals work. Highlights and features of the app for Solar Professionals are listed below: 1. Lead Management 2. Financial analysis and tools to get cash flow, break-even analysis etc. 3. Use standard terms and conditions for your proposal 4. Energy output calculation 5. Customer proposal template in a customized form 6. Email a quote to your client right from your device within minutes of using this app 7. Project management via cloud technology to monitor the progress of the lead/project 8. Increase conversions with quick, detailed and professional offers Design and manage your sales with your smartphone or tablet wherever you are. Increase your work performance and make it more professional using MyWattsun Solar Platform.

Screenshots

Hydronic3 screens
MyWattsun4 screens

Verdict

The call

The clearest difference is update cadence: Hydronic at weekly against MyWattsun's every 2 weeks. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

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

UpkeepUpdate frequency

Hydronic ships an update weekly, MyWattsun every 2 weeks. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

Scorecard1 real difference ยท 5 level
Hydronic versus MyWattsun: the parameters behind the verdict, then further details
ParameterHydronicMyWattsun
PriceFreeFree
Update frequencyWeekly โ€” betterEvery 2 weeks
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.1 โ€” better13.4
Further details โ€” not scored
Size2 MB56 MB
Age rating4+4+
DeveloperPhilip AntecolAHASOLAR TECHNOLOGIES LIMITED

In-app purchases

None

Hydronic

No in-app purchases

None

MyWattsun

No in-app purchases

Questions

Is Hydronic free?
Hydronic is free to download, with no in-app purchases.
Is MyWattsun free?
MyWattsun is free to download, with no in-app purchases.
Do Hydronic or MyWattsun have ads?
Neither Hydronic nor MyWattsun shows ads.
Which is updated more often, Hydronic or MyWattsun?
Hydronic ships an update weekly, and MyWattsun every 2 weeks. Most recently, Hydronic was updated on October 6, 2026 and MyWattsun on October 14, 2026.

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