Workover Assistant vs DrillOut Calcs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Hydrostatic pressure calculations
- Internal capacity calculations
- Oil and gas well workover tools
- Rig site and office utility
- Accurate field calculations
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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.
DrillOut Calcs
This app offers essential calculations for oilfield professionals performing post-frac plug drill-outs. It provides quick and accurate tools to verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time, designed for simplicity and speed.
- Post-frac plug drill-out calculations
- Flow balance verification
- Annular velocity calculation
- Sweep efficiency assessment
- Surface return timing
- Real-time data verification
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Drill-Out Calculator provides quick, accurate tools for oilfield professionals performing post-frac plug drill-outs. Built for simplicity and speed, it helps verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time.
Screenshots
Verdict
The clearest difference is update cadence: DrillOut Calcs at every 3 weeks against Workover Assistant's every 58 months. Workover Assistant's advantage is iOS requirement (16.6 vs 18.5). On price, rating, ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Workover Assistant against 5.0 for DrillOut Calcs. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
Workover Assistant ships an update every 58 months, DrillOut Calcs every 3 weeks. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.
| Parameter | Workover Assistant | DrillOut Calcs |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 2 |
| Update frequency | Every 58 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 18.5 |
| Further details — not scored | ||
| Size | 3 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Kelly Gayneaux | Cody Martin |
Customer experience
Workover Assistant
DrillOut Calcs
In-app purchases
Workover Assistant
No in-app purchases
DrillOut Calcs
No in-app purchases
Questions
Is Workover Assistant free?
Is DrillOut Calcs free?
Which has better reviews, Workover Assistant or DrillOut Calcs?
Do Workover Assistant or DrillOut Calcs have ads?
Which is updated more often, Workover Assistant or DrillOut Calcs?
Other comparisons
