Comparison

Shim Selector vs Qualitygram

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

Head to head
About

Shim Selector

This tool helps engineers find optimal shim materials for brake NVH issues. It features an FFT analyzer for precise results and an advanced search to filter materials by various properties. Users can easily request material samples for testing.

Highlights
  • FFT analyzer for peak dB and frequency
  • Advanced search and filtering
  • Material selection based on adhesive, steel, and thickness
  • Request dynamometer test samples
  • Access to Trelleborg's material expertise
Features
Read full description

Noise, vibration and harshness (NVH) problems with brakes? This is the leading tool for engineers to find the best Shim materials for the job. Tap into Trelleborg’s expertise and wide range of top quality materials. Offering more than just a recording function, the app includes an FFT (Fast Fourier Transform) analyzer for an accurate and precise result, showing peak levels (dB) across frequency (Hz). An advanced search function allows for easy filtering for the type of adhesive used, steel quality and thickness and other variables. Requesting one of the short listed materials for a dynamometer test is so easy, using the built in form. Brake engineers rely on this tool, so should you.

About

Qualitygram

Features
Read full description

Qualitygram is a unique problems solving app which allows groups and teams within an organization to generate new issues, communicate effectively to solve them and track them to closure in a very organized way. It combines the power of communication and discipline to achieve improvements in business metrics goals but only FASTER. Start a new issue, form groups, upload pictures, videos, chat about the issue, track the issue as it gets solved, generate reports. Achieve Quality faster, Achieve you plant metrics faster. Qualitygram centrally stores the issues and their solutions, so you can build a library of knowledge as you go along solving more issues. This information can be very useful in future future launch of new products or processes in your organization to prevent similar problems.

Screenshots

Shim Selector4 screens
Qualitygram3 screens

Verdict

The call

The clearest difference is iOS requirement: Qualitygram at 12.4 against Shim Selector's 16.6. On price, update cadence, ads 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.

UpkeepUpdate frequency

Shim Selector ships an update every 7 months, Qualitygram every 10 months. The most recent releases landed on September 30, 2026 and September 28, 2026 respectively.

Scorecard1 real difference · 9 level
Shim Selector versus Qualitygram: the parameters behind the verdict, then further details
ParameterShim SelectorQualitygram
PriceFreeFree
Rating4.8 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyEvery 7 months — betterEvery 10 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS16.612.4 — better
Further details — not scored
Size15 MB33 MB
Age rating4+4+
DeveloperTrelleborg Sealing Solutionsorca digital solutions north america inc

In-app purchases

None

Shim Selector

No in-app purchases

None

Qualitygram

No in-app purchases

Questions

Is Shim Selector free?
Shim Selector is free to download, with no in-app purchases.
Is Qualitygram free?
Qualitygram is free to download, with no in-app purchases.
Do Shim Selector or Qualitygram have ads?
Neither Shim Selector nor Qualitygram shows ads.
Which is updated more often, Shim Selector or Qualitygram?
Shim Selector ships an update every 7 months, and Qualitygram every 10 months. Most recently, Shim Selector was updated on September 30, 2026 and Qualitygram on September 28, 2026.

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