Comparison

Keystone Pump TDH Calculator vs Cornell Pump Toolkit

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

Head to head
About

Keystone Pump TDH Calculator

This utility app assists engineers and technical personnel in calculating system parameters for slurry pipe and pump sizing. It computes required head pressure and limiting settling velocity based on user-inputted system data. The tool aims to simplify the selection process for slurry pumps.

Highlights
  • Slurry Density Calculation
  • Limiting Settling Velocity Calculation
  • Slurry Head & Equivalent Water Head Calculation
  • Pipe Type and Size Database
  • NPSHA Calculation
  • US and Metric Units
  • Save Calculation Results
Features
Read full description

Keystone Pumps - Keystone Pump TDH Calculator was created to assist Engineers and Technical Personnel with system calculations required for the sizing of slurry pipe systems and slurry pumps. Our program allows the user to simply enter in basic system parameters and our program will calculate the required head pressure and limiting settling velocity. Our desire is to provide our customers with a dynamic tool that allows for ease of selecting slurry pumps. Features: • Supports iOS10 • Built in Slurry Density Calculation • Limiting Settling Velocity Calculation • Slurry Head & Equivalent Water Head Calculation • Built in Pipe Type and Size Database • Entry and Saving of Customer Pipe Sizes • Built in Pipe Fittings Visual Selection Database • Entry and Saving of Custom Pipe Fittings • NPSHA Calculation • US and Metric Units • Saving of Individual Calculation Results • E-Mailing of Individual Calculation Results

About

Cornell Pump Toolkit

This utility app helps calculate key centrifugal pump performance metrics like head, suction, and friction loss. It also suggests suitable pumps from a catalog and allows saving and sharing results. It's designed for field use on Apple devices, functioning offline.

Highlights
  • Calculate Total Dynamic Head
  • Calculate Net Positive Suction Head
  • Calculate Friction Loss
  • Suggest pumps from catalog
  • Save and share calculations
  • Offline functionality
Features
Read full description

Cornell Pump Toolkit The right mobile app to answer your questions about centrifugal pumps! This mobile app can be used to calculate: · Total Dynamic Head · Net Positive Suction Head · Friction Loss · And, save and share your calculations Plus, suggest pumps from Cornell’s robust and efficient catalog to meet your system needs. Cornell Pump Toolkit can be used on Apple devices—allowing functionality without needing to be connected to the internet. The application is free—ideal for use by project managers, engineers, operators, mechanics, and distributors in agricultural, industrial, municipal, mining, and rental applications. Please Note: Cornell Toolkit is used as an approximating tool for pumps and systems. While the Cornell Toolkit has been examined by Cornell staff, including professional engineers, and found to be accurate, Cornell offers more detailed and precise calculations through tools available on our website. Cornell Toolkit is a quick check for in field operations, and narrowing pump selections. Calculations are made assuming 60 degree Fahrenheit water; water at significantly different temperatures or liquids with different specific gravity may yield substantially divergent results. Piping friction loss is calculated using Hazen-Williams hydraulic equations—as the diameter of pipes get smaller than 3” or larger than 12” there is less accuracy in the calculation that is not corrected by the toolkit. Care should be used in comparing smaller or larger piping with the toolkit.

Screenshots

Keystone Pump TDH Calculator1 screens
Cornell Pump Toolkit3 screens

Verdict

The call

The clearest difference is update cadence: Keystone Pump TDH Calculator at every 6 months against Cornell Pump Toolkit's every 29 months. Cornell Pump Toolkit's advantage is device support (3 vs 1) and ratings volume (3 vs 1). On price, rating, review sentiment and ads 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

On the App Store both sit at effectively the same score — 5.0 for Keystone Pump TDH Calculator against 5.0 for Cornell Pump Toolkit. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Keystone Pump TDH Calculator ships an update every 6 months, Cornell Pump Toolkit every 29 months. The most recent releases landed on May 31, 2026 and September 23, 2026 respectively.

Scorecard4 real differences · 6 level
Keystone Pump TDH Calculator versus Cornell Pump Toolkit: the parameters behind the verdict, then further details
ParameterKeystone Pump TDH CalculatorCornell Pump Toolkit
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 6 months — betterEvery 29 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size3 MB22 MB
Age rating4+4+
DeveloperKeystone Pumps LTDCornell Pump Company

Customer experience

Keystone Pump TDH Calculator

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

Cornell Pump Toolkit

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Keystone Pump TDH Calculator

No in-app purchases

None

Cornell Pump Toolkit

No in-app purchases

Questions

Is Keystone Pump TDH Calculator free?
Keystone Pump TDH Calculator is free to download, with no in-app purchases.
Is Cornell Pump Toolkit free?
Cornell Pump Toolkit is free to download, with no in-app purchases.
Which has better reviews, Keystone Pump TDH Calculator or Cornell Pump Toolkit?
Keystone Pump TDH Calculator and Cornell Pump Toolkit are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Keystone Pump TDH Calculator or Cornell Pump Toolkit have ads?
Neither Keystone Pump TDH Calculator nor Cornell Pump Toolkit shows ads.
Which is updated more often, Keystone Pump TDH Calculator or Cornell Pump Toolkit?
Keystone Pump TDH Calculator ships an update every 6 months, and Cornell Pump Toolkit every 29 months. Most recently, Keystone Pump TDH Calculator was updated on May 31, 2026 and Cornell Pump Toolkit on September 23, 2026.

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