Process & Control Engineering vs H/Comet Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Process & Control Engineering
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Process & Control Engineering is a leading publication and have been serving the process industries for 45 years. Our readers are engineers, managers and senior executives who have a purchasing and/or specifying responsibility for control, instrumentation and process products, equipment, systems and services. Our readers work within these industries: Energy & Renewables, Food & Beverage, HVAC, Industrial, Mining, Oil & Gas, Petrochemical & Chemical, Pharmaceutical, Power Generation & Nuclear, Paper & Pulp, Subsea & Offshore, Water & Waste Water We have a print & digitally-enabled, multi-channel distribution network – reaching up to 38,000 monthly readers and followers.
H/Comet Mobile
Access and manage crude assay data, slates, blends, and cut sets on the go. Search for assays, modify cut sets, and perform slate operations like comparisons and graphing. Analyze data with value/cut lookup tools.
- Access assay libraries, slates, blends, and cut sets
- Search and view detailed assay data
- Re-cut assays with H/CAMS technology
- Create and modify cut sets
- Access and modify existing or create new slates
- Perform slate operations like cut comparisons and graphing
- Access and modify existing or create new blends
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H/Comet-Mobile by Haverly Systems allows H/Comet customers to access their existing H/Comet assay libraries, slates, blends, and cut sets on the go by logging in with their H/Comet credentials. Users have several search filters they may use to find the perfect assay and view detailed assay data. Assays can be re-cut with H/CAMS technology by editing the gray boiling point fields, or with a saved cut set. Users can also create and modify cut sets (with or without tray inefficiencies). In addition, users can access and modify existing slates or create new ones. Slate operations such as cut comparisons and group graphing can be done on a slate. H/Comet Mobile also supports blends, so users can access (and modify) existing blends as well as create new ones. Finally, assays can be graphed and then analyzed with value/cut lookup tools. Help us improve this app! If you would like to report a bug, suggest a feature, or require customer support pertaining to this app, please email john@haverly.com.
Screenshots
Verdict
The clearest difference is update cadence: H/Comet Mobile at every 3 weeks against Process & Control Engineering's every 7 months. H/Comet Mobile also leads on iOS requirement (9.2 vs 16.0). 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. Neither carries in-app purchases, so what you see is what you pay.
Process & Control Engineering ships an update every 7 months, H/Comet Mobile every 3 weeks. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Process & Control Engineering | H/Comet Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (2 ratings) — better |
| Number of ratings | — | 2 — better |
| Update frequency | Every 7 months | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 9.2 — better |
| Further details — not scored | ||
| Size | 31 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | Datateam Business Media Ltd | Haverly Systems, Inc. |
In-app purchases
Process & Control Engineering
No in-app purchases
H/Comet Mobile
No in-app purchases
Questions
Is Process & Control Engineering free?
Is H/Comet Mobile free?
Do Process & Control Engineering or H/Comet Mobile have ads?
Which is updated more often, Process & Control Engineering or H/Comet Mobile?
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