Comparison

Spill Calc Lite vs Cementing Engineer

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

Head to head
About

Spill Calc Lite

Quickly estimate surface spill volumes in the field with this tool. Calculate for square, rectangular, circular, and triangular spills, with options for tank displacement. Features a clean interface and helpful library for efficient on-site calculations.

Highlights
  • Estimate surface spill volumes
  • Calculate for square, rectangular, circular, and triangular spills
  • Optional tank displacement calculation
  • Immediate results in barrels and gallons
  • Clean and modern interface
  • Easy-to-use Help Library
Features
Read full description

Spill Calc Lite is a fast, reliable tool built for estimating surface spill volumes in the field. Quickly calculate spill volumes by selecting a shape, entering your measurements, and getting immediate results in barrels and gallons—right when you need them most. Supported spill types: • Square and rectangular spills • Circular spills • Triangular spills Rectangle and square calculations also include optional tank displacement, helping you account for real-world conditions on location. Designed with a clean, modern interface and an easy-to-use Help Library, Spill Calc Lite keeps calculations simple, clear, and efficient—so you can focus on the job at hand. Need more advanced features? Upgrade to Spill Calc Pro to save calculations, organize multiple spill sections, and export your data.

About

Cementing Engineer

This app is a field calculator for oilfield cementing operations. It allows users to input wellbore geometry and slurry details to get live, updated calculations for volumes, pressures, and pump schedules. The app also features a live well schematic and a tally book for saving and recalling job details.

Highlights
  • Field calculator for oilfield cementing
  • Live, updating calculations for volumes and pressures
  • Wellbore geometry and slurry stack input
  • Derived results with detailed math
  • Live well schematic
  • Tally Book for saving and recalling jobs
  • Offline functionality
Features
Read full description

Cementing Engineer is a field calculator for oilfield cementing operations, built by a cementer for cementers. The app requires an auto-renewable in-app subscription after the 7-day free trial to access the calculator, Tally Book, saved jobs, schematics, and derived cementing results. Pick the job - conductor, surface, intermediate, production, two-stage, drilling or production liner, balanced plug, kick-off plug, plug & abandon, or Bradenhead squeeze - enter the wellbore geometry and slurry stack, and every number updates live as you type. DERIVED RESULTS, SHOWN WITH THE MATH - Annular, shoe track, and displacement volumes with the capacity factors behind each number - Fluid placement tops and returns at surface - Volume calculations by slurry with sacks and totals - Pump schedule with rates and durations - Thickening time requirements - Hydrostatic, differential, lift, and bump pressures with burst limits - Mix water and total water requirements LIVE WELL SCHEMATIC A measured-depth schematic of casing, open hole, and fluid placement that redraws as the design changes, including two-stage and liner jobs. TALLY BOOK Save any job to the Tally Book: a browsable log of every well with its full design, well information, schematic, and complete derived results. Reopen any saved job straight into the calculator. WORKS IN THE FIELD Calculations run on the device, so the math works with no signal at the wellsite. Sign in with Apple or Google to keep your Tally Book synced across your devices. SUBSCRIPTION REQUIRED AFTER TRIAL Start with a 7-day free trial. After the trial, Apple automatically bills the selected plan unless canceled before renewal: $9.99/month or $79.99/year. Cancel anytime in your App Store account settings. Terms of Use: https://cement-phone-calculator.pages.dev/terms Privacy Policy: https://cement-phone-calculator.pages.dev/privacy Field estimate only - verify final volumes, pressures, and regulatory requirements before pumping.

Screenshots

Cementing Engineer4 screens

Verdict

The call

The clearest difference is in-app purchases: Spill Calc Lite at none against Cementing Engineer's 2. Cementing Engineer's advantage is update cadence (fortnightly vs every 16 months) and ratings volume (3 vs 1). On price, rating, ads 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. Cementing Engineer sells 2 in-app purchases, starting at $9.99 per month. Spill Calc Lite asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Spill Calc Lite against 5.0 for Cementing Engineer. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

UpkeepUpdate frequency

Spill Calc Lite ships an update every 16 months, Cementing Engineer fortnightly. The most recent releases landed on October 3, 2026 and October 5, 2026 respectively.

Scorecard4 real differences · 6 level
Spill Calc Lite versus Cementing Engineer: the parameters behind the verdict, then further details
ParameterSpill Calc LiteCementing Engineer
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 16 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size1 MB18 MB
Age rating4+4+
DeveloperKelly GayneauxRondo Wright

Customer experience

Spill Calc Lite

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Cementing Engineer

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

In-app purchases

None

Spill Calc Lite

No in-app purchases

2 purchases

Cementing Engineer

Subscriptions2
  • Pro Monthly7 Days trial$9.991 Month
  • Pro Annual7 Days trial$79.991 Year

Questions

Is Spill Calc Lite free?
Spill Calc Lite is free to download, with no in-app purchases.
Is Cementing Engineer free?
Cementing Engineer is free to download, with in-app purchases available.
Which has better reviews, Spill Calc Lite or Cementing Engineer?
Spill Calc Lite and Cementing Engineer are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Spill Calc Lite or Cementing Engineer have ads?
Neither Spill Calc Lite nor Cementing Engineer shows ads.
Which is updated more often, Spill Calc Lite or Cementing Engineer?
Spill Calc Lite ships an update every 16 months, and Cementing Engineer fortnightly. Most recently, Spill Calc Lite was updated on October 3, 2026 and Cementing Engineer on October 5, 2026.

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