# Matrix CompCalc

> California Workers' Compensation indemnity and benefits calculator. (iPhone/iPad app by Thomas Smith.)

- Source: https://appshunter.io/ios/app/matrix-compcalc/id1611043147 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Smith](https://appshunter.io/developer/1725182113)
- Category: Business, Utilities
- Price: Free
- Rating: 5.00/5 from 3 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 53 MB
- Languages: American English
- Released: 2022-03-15
- Data updated: 2026-08-26
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/matrix-compcalc/id1611043147/reviews.md

## What is Matrix CompCalc?

Matrix CompCalc is a California Workers' Indemnity Calculator that includes:
- A full PD rating schedule which automatically creates rating strings adjusting the WPI given the Part of Body, Age, Occupation, and DFEC. This version also incorporates a relational database for Occupation and Part of Body making input intuitive and simple.
- Complete AMA WPI Table/Formula from AMA Guides Fifth Edition.
- Permanent Disability.
- Temporary Disability. It also calculates TD liability for a given period based on the default max weekly rate for the date of industrial injury or a TD rate based on AWW manually imputed.
- Life Pension.
- Life Expectancy given the current age and based upon the 2008 / 2010 U.S. Life Tables as provided by the U.S. Census Bureau.
- Supplemental Job Displacement Benefits.
- Death Benefits, for the given date of industrial injury.
- Present Value (PV) and Cost Of Living Adjustment (COLA) estimator for Life Pension and Total Disability Awards. The PV/COLA calculator estimates the total Future Value (FV) / PV / COLA for a given percentage of disability between 70-100% based on Age at time of first payment, Date of Injury, and inputted PV discount rate / COLA inflation rate / PV Rate Discount Compound.
- Combined Vale Equation Module which computes CVE percentage and total indemnity given percentage numbers, DOI, AWW or PD Rate (defaulting to max).

Other features also include a Date Calculator, full listing of QME/Body Codes, and full access to support and training videos.

Some nice aggregates our application has: 
- Includes the option with a tap of the screen to turn on or off the Combined Value Equation when multiple rating strings are involved. When the Combined Value Equation is turned off the adjusted PD for each rating string is aggregated rather than combined using the Combined Value Equation.
- The user has an option to override default TD/PD indemnity rate in all screens (always bounded by min and max values).
- The user can print, store or send the e-mail of PD Ratings / FV-PV-COLA calculations.

All Users of the Matrix CompCalc are instructed to consult the specific provisions of the California Labor Code and/or the DEU to ensure the accuracy of the information provided. It is not the intent of this product to provide legal representation, or legal advise. The user of the Matrix CompCalc is encourage to retain legal counsel before using this product.

Matrix, Comp Calc, and legal-records.us are private entities and are not affiliated with or part of any government agency. Any services or information provided are not endorsed or validated by governmental authorities.

## Key features

- Permanent Disability rating schedule
- Temporary Disability calculations
- Life Pension and Life Expectancy estimators
- Death Benefit calculations
- Present Value and COLA estimator
- Combined Vale Equation module
- Date Calculator

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/matrix-compcalc/id1611043147/reviews.md

### 5/5 — Great for ratings on the go

*2022-12-08*

Good calculator if you have all of your info ready to go. UX on rating tool could be a bit better but handy to have on your phone.

## Frequently asked questions about Matrix CompCalc

### What is Matrix CompCalc used for?

Matrix CompCalc is a specialized tool for calculating various aspects of California Workers' Compensation claims. It can determine permanent and temporary disability ratings, estimate life pensions, and calculate death benefits, among other functions.

### Does Matrix CompCalc provide legal advice?

No, Matrix CompCalc is not intended to provide legal representation or advice. Users are instructed to consult the California Labor Code and retain legal counsel before using the product.

### What are the key calculation features of Matrix CompCalc?

Key features include a full PD rating schedule, AMA WPI tables, Temporary Disability calculations based on AWW or max rates, Life Pension and Life Expectancy estimators, and Supplemental Job Displacement Benefits.

### Can I customize calculations in Matrix CompCalc?

Yes, users have options to override default TD/PD indemnity rates, and can choose to turn the Combined Value Equation on or off when multiple rating strings are involved.

### What devices is Matrix CompCalc available on?

Matrix CompCalc is available on Mac, iPhone, iPad, and iPod. It is designed for users who need to perform these calculations on various Apple devices.

### How often is Matrix CompCalc updated?

The latest version is 2.9, and it was last updated on April 22, 2026. This indicates a recent update, suggesting ongoing development and maintenance.

### What is the rating for Matrix CompCalc?

Matrix CompCalc has a perfect rating of 5.0 stars based on 3 user ratings. This suggests a very high level of user satisfaction among its current users.

### Does Matrix CompCalc have ads?

No, Matrix CompCalc does not contain advertisements. It is a free application without any ad interruptions.

## Version history (last 5 releases)

### 3.0 — 2026-08-18

Login / Register feature and User Account tab.

### 2.9 — 2026-04-22

Save/restore in AMA Guides.

### 2.8 — 2026-04-15

The complete AMA Guides from Fifth Edition.

### 2.7 — 2026-01-25

Nervous / Respiratory Systems for AMA Guides module.

### 2.6 — 2025-12-31

PD/TD Rates for 2026.
Spine impairment for AMA Guides.

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## More apps by Thomas Smith

- [National CompCalc](https://appshunter.io/ios/app/national-compcalc/id6754295249)

All apps by Thomas Smith: https://appshunter.io/developer/1725182113

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*