Comparison

Stack Testers Friend vs PATMobile

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

Head to head
About

Stack Testers Friend

This mobile toolkit provides essential on-site calculations for stack testers. Quickly perform gas conversions, probe position calculations, and other vital engineering tasks without needing a laptop. It's designed for environmental engineers needing immediate access to data while working in the field.

Highlights
  • Gas conversion calculations
  • Isokinetic sample position calculations
  • Extraction rate calculations
  • Gas density calculations
  • Particulate matter normalization
  • Calibration function calculations
Features
Read full description

The app has been developed by the Engineers of CES Environmental Instruments, one of the UKs leading environmental Test Houses and incorporates some of their on-site calculations in one easy to use app. When working on the stack and you need that quick answer to a gas conversion or probe position, the answer can be at your fingertips. Simple and easy to use the app contains lots of essential calculations for the stack tester without the need to manually calculate the value or start up a laptop. The app is an essential tool for the professional Environmental engineer having all the tools to quickly check the numbers whilst out and around site. The contents of the CES Environmental Instruments popular Engineers Note Book is preloaded within the app. The app can do the following and much more: - Calculate Dia, CSA, Circ. - Isokinetic sample positions, General & Tangential - Extraction rates - Gas density - Calculate H20 from wet & dry Oxygen - Gas ppm/mg/mΒ³ conversions & Normalisation - LOD - Particulate Matter Normalisation & estimation of temp, H2O & O2 - Ranging & scaling of dust monitors & outputs - Calculation of values using calibration functions - Biomass fuels

About

PATMobile

Easily record and manage your electrical appliance test results on your smartphone. Generate professional PDF reports instantly or display records on-site. Designed for seamless integration with specific testing equipment.

Highlights
  • Record PAT test results
  • Scan barcodes
  • Take photos
  • Store test results
  • Print labels
  • Generate PDF reports
Features
Read full description

Our PATMobile PAT testing app is the perfect answer for those who want a simple yet powerful record keeping solution for their PAT results. Never get caught out again when you turn up to site and are asked for a copy of your PAT records: PATMobile allows you to display your PAT records on your smartphone or create and share a professional pdf report on the spot. It is designed to be the perfect accompaniment to Seaward’s PrimeTest range of manual PAT testers. Used together, they give you the tools to scan barcodes, take photos, store your PAT results, print a label and generate a report - with just a few taps thanks to our simple and intuitive user interface design.

Screenshots

Stack Testers Friend4 screens
PATMobile4 screens

Verdict

The call

The clearest difference is review sentiment: Stack Testers Friend at 100% against PATMobile's 9%. Stack Testers Friend also leads on update cadence (every 7 months vs every 28 months) and device support (3 vs 1). On price, ads, in-app purchases and monetization model 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

Stack Testers Friend ships an update every 7 months, PATMobile every 28 months. The most recent releases landed on September 24, 2026 and October 8, 2026 respectively.

Scorecard4 real differences Β· 4 level
Stack Testers Friend versus PATMobile: the parameters behind the verdict, then further details
ParameterStack Testers FriendPATMobile
PriceFreeFree
Positive reviews100.0% of reviews β€” better8.9% of reviews
Update frequencyEvery 7 months β€” betterEvery 28 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod β€” betteriPhone
Requires iOS13.0 β€” better16.4
Further details β€” not scored
Size33 MB134 MB
Age rating4+4+
DeveloperLewis HolmesSeaward Electronics Ltd.

Customer experience

Stack Testers Friend

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PATMobile

Written reviews45 reviews
Positive8.9%
Neutral8.9%
Negative82.2%

In-app purchases

None

Stack Testers Friend

No in-app purchases

None

PATMobile

No in-app purchases

Questions

Is Stack Testers Friend free?
Stack Testers Friend is free to download, with no in-app purchases.
Is PATMobile free?
PATMobile is free to download, with no in-app purchases.
Do Stack Testers Friend or PATMobile have ads?
Neither Stack Testers Friend nor PATMobile shows ads.
Which is updated more often, Stack Testers Friend or PATMobile?
Stack Testers Friend ships an update every 7 months, and PATMobile every 28 months. Most recently, Stack Testers Friend was updated on September 24, 2026 and PATMobile on October 8, 2026.

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