Comparison

Workover Assistant vs WellCalc

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

Head to head
About

Workover Assistant

This utility app assists oil and gas field personnel with essential calculations for well workovers. It provides tools for hydrostatic pressure, internal capacity, and other critical functions, serving as a convenient resource for rig site or office use.

Highlights
  • Hydrostatic pressure calculations
  • Internal capacity calculations
  • Oil and gas well workover tools
  • Rig site and office utility
  • Accurate field calculations
Features
Read full description

Workover Assistant is designed to help field personnel perform quick, accurate calculations related to oil and gas well workovers. It includes tools for hydrostatic pressure, internal capacity, and other common workover functions—making it a handy companion for the rig site or office.

About

WellCalc

Features
Read full description

WellCalc is a field-ready petroleum engineering calculator for drilling, completions, production, reservoir, and well-control work. Keep the operating context beside the math instead of scattering it across screenshots and notes. WORK FROM A FIELD JOB - Save well name, field, measured depth, hole size, mud weight, and preferred unit system. - Reuse that context across guided workflows and calculations. - Keep recent work and saved scenarios organized by job. CALCULATIONS YOU CAN REVIEW - 97 calculations across 16 engineering categories. - Guided Kill Sheet, Cement Requirements, Trip, Hydraulics, and Economics workflows. - Formula source, formula-set version, operating note, expected range, and safety tier where applicable. - Oilfield and metric units with explicit labels and dimensional checks. - Saved favorites, calculation history, notes, and reference tables. - Audit-ready PDF field reports and CSV data export. FREE - One Field Job. - Well Control, Pipe & Annular, Pumps, Mud Engineering, and Unit Conversion categories. WELLCALC PRO - All calculation categories and guided workflows. - Unlimited Field Jobs. - Formula provenance throughout the library. - PDF and CSV history export. Your saved jobs and calculations stay on this device. WellCalc does not use generative AI or send calculations to an AI service. Subscriptions renew automatically unless canceled in your Apple ID settings. Restore an existing purchase from Settings > Restore Purchases. IMPORTANT: WellCalc is a field reference, not an engineering approval. Verify safety-critical outputs against the approved program, current measurements, equipment limits, and company procedures. TERMS OF USE Product Terms of Use: https://www.uncommonweather.com/legal/apps/wellcalc-terms.html Apple Standard Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Workover Assistant4 screens
WellCalc4 screens

Verdict

The call

The clearest difference is in-app purchases: Workover Assistant at none against WellCalc's 2. Workover Assistant also leads on iOS requirement (16.6 vs 18.0). WellCalc's advantage is update cadence (weekly vs every 58 months). On price, 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. WellCalc sells 2 in-app purchases, starting at $4.99 per month. Workover Assistant asks for nothing beyond the download.

UpkeepUpdate frequency

Workover Assistant ships an update every 58 months, WellCalc weekly. The most recent releases landed on October 4, 2026 and October 18, 2026 respectively.

Scorecard3 real differences · 6 level
Workover Assistant versus WellCalc: the parameters behind the verdict, then further details
ParameterWorkover AssistantWellCalc
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 58 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.6 — better18.0
Further details — not scored
Size3 MB13 MB
Age rating4+4+
DeveloperKelly GayneauxRyan Tinklepaugh

In-app purchases

None

Workover Assistant

No in-app purchases

2 purchases

WellCalc

Subscriptions2
  • WellCalc Pro Monthly$4.991 Month
  • WellCalc Pro Yearly$29.991 Year

Questions

Is Workover Assistant free?
Workover Assistant is free to download, with no in-app purchases.
Is WellCalc free?
WellCalc is free to download, with in-app purchases available.
Do Workover Assistant or WellCalc have ads?
Neither Workover Assistant nor WellCalc shows ads.
Which is updated more often, Workover Assistant or WellCalc?
Workover Assistant ships an update every 58 months, and WellCalc weekly. Most recently, Workover Assistant was updated on October 4, 2026 and WellCalc on October 18, 2026.

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