Comparison

Deswik.Drilling vs IsItCorrect PAT

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

Head to head
About

Deswik.Drilling

Features
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Deswik’s Drilling App improves efficiency and accuracy in underground development. The app provides operators with the latest survey plans, an interactive mine map, face mark-up abilities, and an operator toolbox to guide users through complex mark-ups. Keep development headings on line, reduce re-work, overbreak and underbreak, and improve standards of work through best practice mark-up. Features: β€’ Take the guess work out of the more difficult mark-ups such as laser offsets, angled drives and fillets. The Operator Toolbox includes tutorials to take operators through step-by-step best practice methods for marking up complex drives. β€’ A built-in offset calculator allows operators to enter in the face distance, the laser offsets and then be stepped through the process of marking up the face efficiently and accurately. β€’ Save time and eliminate the need to chase survey plans on the surface by accessing all the current plans for headings within the easy-to-read Dashboard. β€’ An interactive mine map allows operators to see their work location, view the levels above and below, view survey station locations, and see the design and as-builts for each level. β€’ Take photos and record data on the job, removing the need to file paper face mark-up sheets.

About

IsItCorrect PAT

Features
Read full description

IsItCorrect PAT is a Photographic Auditing Tool ("PAT") designed to quickly and efficiently allow for the auditing of physical environments. This particular app has been designed for areas without internet connectivity and/or for the auditing of sensitive areas. The app is entirely offline and does not even save produced audit reports (which are normal PDF's) to the cloud. You have to manually retrieve the audit PDF's, such as via the default Files app (which lets you e-mail the PDF somewhere) or by connecting the device to a computer and retrieving the PDF via iTunes. After starting an audit session in the app you can easily fill in the required details of an audit item and take photographs of that item. Box in the wrong spot? Notices put up correctly? It is easy to record the good and the bad as you move through your physical environment, be it a home, office, warehouse, or other type of area. If the item you're examining has both good and bad aspects you can record this too. The app attaches the information you provide to each photo so once you've taken a photo you can change the correctness / compliance status and the reason, and take another for what is technically the same item, or you can treat the good and the bad as different items - the choice is yours. As you take photographs the app informs you of the number taken thus far and finishing an item is a single button press, clearing all fields so you're ready to move to the next item. Taking photographs uses the familiar apple camera interface and photos can be taken in any orientation and that orientation will be saved and used for the audit report. When you're finished push the complete audit button and everything you have recorded is processed and stored in a PDF that you can open in a PDF reader of your choice. You can review the produced PDF from within the app, just to make sure it is there. Warnings, errors, and other alerts appear promptly and, where possible, suggest action you can take to resolve issues, such as having low storage space on your device or not having the camera permissions set correctly. The audit PDF that is produced focuses on the photo you took, with it taking up the vast majority of the space available. The reason follows in importance, centralised at the top. Of note is that the reason can be longer than the space it is assigned and if it is too long it will just draw over the photo until it runs off the page, so you can have quite lengthy reasons if needed. Some app branding and quick-recognition good or bad images take up the rest of the space, making it clear what produced the PDF and if the item was marked as being correct / compliant or not. The PDF is in landscape orientation so it comes ready for use in presentations whilst also allowing maximum space for photos taken in landscape orientation. There are some things the app does not do, for example it won't let you edit any photos already taken - if you make a mistake, keep going because it's actually easy to fix when the PDF is produced. Since each photo is independent and on its own page any unwanted photos are easy to delete - you just use your preferred PDF editing tool to delete the entire page it is on and it will have no effect on the content in the rest of the document. Finally the app is somewhat robust and preserves data whilst running however if you terminate the app or if it is terminated by the Operating System (e.g. it is idle for too long, or your battery goes flat), the active audit session will be lost entirely, so please keep this in mind before starting an audit session and during a session.

Screenshots

Deswik.Drilling4 screens
IsItCorrect PAT1 screens

Verdict

The call

The clearest difference is update cadence: Deswik.Drilling at monthly against IsItCorrect PAT's every 16 months. Deswik.Drilling also leads on iOS requirement (12.2 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Deswik.Drilling ships an update monthly, IsItCorrect PAT every 16 months. The most recent releases landed on August 1, 2026 and September 9, 2026 respectively.

Scorecard2 real differences Β· 4 level
Deswik.Drilling versus IsItCorrect PAT: the parameters behind the verdict, then further details
ParameterDeswik.DrillingIsItCorrect PAT
PriceFreeFree
Update frequencyMonthly β€” betterEvery 16 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.2 β€” better14.0
Further details β€” not scored
Size180 MB1 MB
Age rating4+4+
DeveloperDeswikDavid Storey

In-app purchases

None

Deswik.Drilling

No in-app purchases

None

IsItCorrect PAT

No in-app purchases

Questions

Is Deswik.Drilling free?
Deswik.Drilling is free to download, with no in-app purchases.
Is IsItCorrect PAT free?
IsItCorrect PAT is free to download, with no in-app purchases.
Do Deswik.Drilling or IsItCorrect PAT have ads?
Neither Deswik.Drilling nor IsItCorrect PAT shows ads.
Which is updated more often, Deswik.Drilling or IsItCorrect PAT?
Deswik.Drilling ships an update monthly, and IsItCorrect PAT every 16 months. Most recently, Deswik.Drilling was updated on August 1, 2026 and IsItCorrect PAT on September 9, 2026.

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