Compressor HP vs Cementing Engineer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Compressor HP
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Calculate hermetic compressor size (Horse power or watts). Just enter electric data and click or tap calculate button to see the compressor power.
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.
- 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
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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
Verdict
The clearest difference is update cadence: Cementing Engineer at fortnightly against Compressor HP'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
Both are free to download. Compressor HP sells 3 one-off in-app purchases and Cementing Engineer sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Compressor HP ships an update every 4 months, Cementing Engineer fortnightly. The most recent releases landed on October 6, 2026 and October 5, 2026 respectively.
| Parameter | Compressor HP | Cementing Engineer |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (3 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 3 — better |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 3 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Melchisedec Martinez Rodriguez | Rondo Wright |
In-app purchases
Compressor HP
- Unlock capacitor size$0.99
- Unlock compressors type$2.99
- Unlock all refrigerants$2.99
Cementing Engineer
- Pro Monthly7 Days trial$9.991 Month
- Pro Annual7 Days trial$79.991 Year
Questions
Is Compressor HP free?
Is Cementing Engineer free?
Do Compressor HP or Cementing Engineer have ads?
Which is updated more often, Compressor HP or Cementing Engineer?
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