Comparison

Pass vs Expert Buffer Designer

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

Head to head
About

Pass

This app helps field service professionals prove their arrival at a job site. It uses NFC to quickly scan into properties and record work completion. A Pass-Code account is required to use the service.

Highlights
  • NFC property scanning
  • Record work completion
  • Simple interface
  • Field service proof
Features
Read full description

Pass-Code allows you to prove to your customers that you arrived in the field to complete the work assigned to you. The app’s simple to use interface allows you to scan into a property and record your work simply and in no time. The app requires NFC which is available in iPhone 7 or newer.You must have a Pass-Code account to use this app. Your field service employer will provide you with an account if you do not already have one.

About

Expert Buffer Designer

This application helps scientists and lab professionals design and analyze buffer solutions with a pH calculator and real-time feedback. It offers comprehensive buffer selection, variability analysis, and dynamic pH adjustment for precise results.

Highlights
  • Comprehensive buffer selection with sensitivity visualization
  • Instant variability analysis with heat map
  • Detailed compound and ion insights
  • Dynamic pH adjustment with real-time feedback
  • Personalized buffer library
  • Multi-platform availability (iOS, iPad, Mac)
Features
Read full description

Take your buffer preparations to the next level with a powerful pH calculator and buffer designer that provides real-time feedback, recipe generation, and advanced variability analysis—all in one seamless platform. Perfect for scientists, engineers, and lab professionals who demand precision and efficiency. Key Features: • Comprehensive Buffer Selection: Choose single or dual buffer species, visualize their sensitivity across the entire pH range, and identify optimal working zones with an intuitive color-coded heat map. • Instant Variability Analysis: Understand how pH shifts when compound concentrations change by 10%. The heat map instantly highlights areas of low (green), moderate (amber), or high (red) sensitivity. • Detailed Composition Insights: Dive deep into compound and ion details for robust understanding and confident decision-making. • Dynamic pH Adjustment: Effortlessly tweak concentrations in a two- or three-component mixture to hit your target pH—see the impact on pH in real time. • Personalized Buffer Library: Store and manage all your custom buffers with automatic syncing and persistence across sessions. • Seamless Sign-In: Log in with your Apple or Google account—your data travels with you, no matter the device. • Multi-Platform Availability: Access the iOS, iPad, or Mac app. Stay connected to your buffer designs anytime, anywhere. Enhance your workflow and ensure absolute precision in the lab. Download Buffer Designer & Analyzer and master the art of buffer preparation today!

Screenshots

Pass4 screens
Expert Buffer Designer4 screens

Verdict

The call

The clearest difference is ads: Pass at none against Expert Buffer Designer's shown. Pass also leads on monetization model (free vs ad-supported) and iOS requirement (11.0 vs 13.0). On price, rating, ratings volume and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Pass against 5.0 for Expert Buffer Designer. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Scorecard3 real differences · 6 level
Pass versus Expert Buffer Designer: the parameters behind the verdict, then further details
ParameterPassExpert Buffer Designer
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings11
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS11.0 — better13.0
Further details — not scored
Size24 MB26 MB
Age rating4+4+
DeveloperTritium Studios LLCBioprocess Tools LLC

Customer experience

Pass

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Expert Buffer Designer

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Pass

No in-app purchases

None

Expert Buffer Designer

No in-app purchases

Questions

Is Pass free?
Pass is free to download, with no in-app purchases.
Is Expert Buffer Designer free?
Expert Buffer Designer is free to download, with no in-app purchases.
Which has better reviews, Pass or Expert Buffer Designer?
Pass and Expert Buffer Designer are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Pass or Expert Buffer Designer have ads?
Expert Buffer Designer shows ads; Pass does not.

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