Comparison

Reflex Pro App vs HyTools

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

Head to head
About

Reflex Pro App

Features
Read full description

Let your smart phone help you! You can now get answers to pressure maintenance queries in heating, solar power and hot water systems at the touch of a button – even in the darkest boiler room! The Reflex Pro App allows you to calculate in situ expansion vessels, define upstream and filling pressures, and take appropriate steps with respect to the hardness of water used to fill and top up systems in accordance with VDI 2035. Ideal for project surveys, initial consultations, and producing highly accurate calculations on site.

About

HyTools

This app provides HVAC professionals with a comprehensive suite of hydronic calculation tools. It assists with tasks like valve sizing, pressure drop calculations, and radiator power estimation. The tool offers unit conversion and language selection for user convenience.

Highlights
  • Hydronic calculator
  • Valve sizing and presetting
  • Radiator power estimation
  • Pipe sizing
  • Unit conversion
  • Pressure maintenance calculation
Features
Read full description

IMI Hydronic Engineering proudly presents HyTools, the user-friendly hydronic calculator App for HVAC professionals. Features include: - Hydronic calculator (enter any two values and get the third one): - flow - Kv/Cv - pressure drop - power - flow - temperature difference - flow - valve setting - pressure drop - Dirt and air separator pressure drop calculation - Valve sizing and presetting - Radiator power estimation (panel and column) - Radiator valve sizing and presetting - Pipe sizing - Unit conversion - Run-time selection of localisation - Run-time selection of language - Pressure maintenance and vacuum degassing calculation and selection for heating, cooling and solar systems Stay tuned for great upcoming updates adding further hydronic calculation functions. Please visit www.imi-hydronic.com for more information and contact details. Phone numbers to local support can be found here: http://www.imi-hydronic.com/en/contact/ IMI Hydronic Engineering International SA is the leading global provider and expert in hydronic distribution systems and room temperature control, with experience in more than 100,000 projects worldwide. We help our customers everywhere optimise HVAC systems so they deliver desired comfort with optimal efficiency. IMI Hydronic Engineering is part of the international engineering group IMI plc which is listed as a member of the FTSE 100 on the London Stock Exchange.

Screenshots

Reflex Pro App4 screens
HyTools4 screens

Verdict

The call

The clearest difference is update cadence: HyTools at every 6 weeks against Reflex Pro App's every 4 months. On price, ads, in-app purchases and device support 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.

UpkeepUpdate frequency

Reflex Pro App ships an update every 4 months, HyTools every 6 weeks. The most recent releases landed on September 17, 2026 and July 25, 2026 respectively.

Scorecard1 real difference · 9 level
Reflex Pro App versus HyTools: the parameters behind the verdict, then further details
ParameterReflex Pro AppHyTools
PriceFreeFree
Rating—4.0 (5 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 4 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.015.0
Further details — not scored
Size19 MB114 MB
Age rating4+4+
DeveloperConSoftIMI Hydronic Engineering International SA

In-app purchases

None

Reflex Pro App

No in-app purchases

None

HyTools

No in-app purchases

Questions

Is Reflex Pro App free?
Reflex Pro App is free to download, with no in-app purchases.
Is HyTools free?
HyTools is free to download, with no in-app purchases.
Do Reflex Pro App or HyTools have ads?
Neither Reflex Pro App nor HyTools shows ads.
Which is updated more often, Reflex Pro App or HyTools?
Reflex Pro App ships an update every 4 months, and HyTools every 6 weeks. Most recently, Reflex Pro App was updated on September 17, 2026 and HyTools on July 25, 2026.

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