Comparison

iMapIt Pro vs HydroCalc Plus

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

Head to head
About

iMapIt Pro

Map, measure, and record locations using your device's GPS. Collect geographic coordinates as points, lines, or areas, with options for manual or automatic data collection. Export your surveys in various formats for professional use.

Highlights
  • Collect geographic coordinates (points, lines, areas)
  • Manual and automatic coordinate collection
  • Measure lines and areas in multiple units
  • Export surveys in DXF, KML, GPX, or CSV
  • Feature editing and cleaning tools
  • Multiple presentation styles for points, lines, and polygons
Features
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Use your iPhone / iPad's GPS to map, measure or simply record places important to you. Your device will be a GPS receiver and will collect geographic coordinates wherever you are. GPS needs satellite’s visibility. Thus, the more open your space, the better the accuracy of measurements. * Geographic coordinates collection formats: . Points - Mark specific places with a point, such as the place you most like to go to, or the starting point of a race, or even the point where you saw a rare bird; . Lines or paths - A sequence of points forming a line to mark a trail where you have walked, or the path you have taken on a run, or the path to your new house, either the location of a new fence you want to build. All mapped lines are measured for you in metric and imperial units; . Areas or polygons - A sequence of points, forming a closed region, to mark land that you are interested in buying, or show the map of your land, or measure the outline of your new house, or delimit the region where you want to build a pool. All mapped areas are calculated for you in metric, imperial and Thai units; * How to collect coordinates: . Manually: You position yourself and tap the MapIt button to collect a coordinate; . Automatically by Time: A coordinate is collected at each defined time interval; . Automatically by Distance: A coordinate is collected at each interval of a pre-defined distance; . Automatically by Direction: A coordinate is collected each time you change the direction of your displacement at an angle greater than a defined limit; * Presentation within iMapIt: Points, lines and polygons can be represented by different types of pins, colors, strokes and fills. * Export your surveys: . In these formats: DXF, KML, GPX or CSV; . Using these projections: UTM or Gauss Krüger, or directly the collected geographical coordinates; . Sending via: eMail, or directly from your device via iTunes (cable), or even more professionally, transferring to a Web server previously prepared to receive them; * Editing functions of surveys performed: . Feature duplication; . Union of existing features; . Division of a feature in two; . Deletion of unwanted coordinates; . Automatic cleaning of unnecessary points; . Move a feature to a new project; Disclaimer on the accuracy of the surveys: All points, paths or areas are surveyed using the GPS accuracy of your device. This is not a professional precision GPS equipment. So your surveys may vary when compared to the actual dimensions.

About

HydroCalc Plus

A professional tool for hydraulic engineers to calculate pressure losses in piping systems. It supports US and SI units, offers an extensive pipe material and fittings database, and includes inverse calculations for design optimization.

Highlights
  • Friction head loss calculation (Hazen-Williams)
  • US and SI unit support
  • Extensive pipe material library
  • Fittings and valves database
  • Inverse calculation mode
  • Real-time results (velocity, losses)
Features
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The COMPLETE version of HydroCalc, with what the free app doesn't have: the FITTINGS SELECTOR. Pick elbows, valves, tees and reducers piece by piece and the app computes minor losses for you — in the calculator, the inverse calculator and the system curve. No K-value tables, no transcription errors. ALL INCLUDED: pump power, system curve, pipe database and Darcy-Weisbach with real fluids come with the app. One purchase, no in-app purchases. Professional hydraulic engineering tool for calculating pressure losses in piping systems. Essential for engineers, plumbers, and contractors designing water distribution networks. Key Features: Calculate friction head losses using industry-standard Hazen-Williams equation Support for both US (ft, gpm, psi) and SI (m, lps, bar) units Extensive pipe material library with pre-defined roughness coefficients (C-factors) Complete fittings and valves database including elbows, tees, valves, contractions, and expansions Inverse calculations to determine optimal pipe diameter, flow rate, or length for target head loss Real-time results showing velocity, friction loss, minor losses, and total system head loss What Sets Plus Apart: Unlike basic calculators, HydroCalc Plus accounts for both major losses (pipe friction) and minor losses (fittings and valves). The app includes a comprehensive database of K-factors for various components, allowing accurate total system pressure loss calculations. Perfect For: Water supply system design Irrigation network planning HVAC piping calculations Fire protection systems Industrial fluid transport Educational purposes in hydraulic engineering Technical Capabilities: The app considers all critical factors affecting pressure loss: flow velocity, pipe diameter, internal roughness, pipe length, and fitting configurations. Materials include PVC, polyethylene, steel, cast iron, concrete, and more with accurate C-factors ranging from 120-150. Inverse Calculation Mode: Unique feature allowing backward calculations - determine required pipe size for allowable head loss, maximum flow capacity, or optimal pipe length for your system constraints. Simple, intuitive interface with instant results. No internet connection required. Professional-grade calculations in your pocket. Note: the advanced modules are available in English and Spanish.

Screenshots

iMapIt Pro4 screens
HydroCalc Plus4 screens

Verdict

The call

iMapIt Pro and HydroCalc Plus both sit at 5.0 stars, but that hides the real split: 100% of HydroCalc Plus's written reviews are positive against 27% of iMapIt Pro's. HydroCalc Plus also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 6 months). iMapIt Pro's advantage is price ($4.99 vs $6.99) and iOS requirement (11.0 vs 15.1). On rating, ratings volume, in-app purchases and monetization model 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

iMapIt Pro costs $4.99 and HydroCalc Plus $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for iMapIt Pro against 5.0 for HydroCalc Plus. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews are what separate them: 27% of iMapIt Pro's written reviews are positive against 100% of HydroCalc Plus's.

UpkeepUpdate frequency

iMapIt Pro ships an update every 6 months, HydroCalc Plus every 3 weeks. The most recent releases landed on November 6, 2026 and November 1, 2026 respectively.

Scorecard5 real differences · 5 level
iMapIt Pro versus HydroCalc Plus: the parameters behind the verdict, then further details
ParameteriMapIt ProHydroCalc Plus
Price$4.99 — better$6.99
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews27.3% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 6 monthsEvery 3 weeks — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size22 MB34 MB
Age rating4+4+
DeveloperMarcus SilvaTransparent Blue Water LLC

Customer experience

iMapIt Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive27.3%
Neutral0.0%
Negative72.7%

HydroCalc Plus

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

iMapIt Pro

No in-app purchases

None

HydroCalc Plus

No in-app purchases

Questions

Is iMapIt Pro free?
iMapIt Pro costs $4.99, with no in-app purchases.
Is HydroCalc Plus free?
HydroCalc Plus costs $6.99, with no in-app purchases.
Which has better reviews, iMapIt Pro or HydroCalc Plus?
iMapIt Pro and HydroCalc Plus are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do iMapIt Pro or HydroCalc Plus have ads?
iMapIt Pro shows ads; HydroCalc Plus does not.
Which is updated more often, iMapIt Pro or HydroCalc Plus?
iMapIt Pro ships an update every 6 months, and HydroCalc Plus every 3 weeks. Most recently, iMapIt Pro was updated on November 6, 2026 and HydroCalc Plus on November 1, 2026.

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