Comparison

Centercode vs National CompCalc

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

Head to head
About

Centercode

Discover product testing opportunities and provide feedback on new technologies. This app simplifies participation in user tests for leading tech companies, allowing you to report bugs, share ideas, and collaborate with other testers.

Highlights
  • Participate in alpha, beta, and delta tests
  • Apply for exclusive testing opportunities
  • Access all projects from one place
  • Report bugs and usability issues
  • Share ideas for new features
  • Collaborate with fellow testers
Features
Read full description

Find product testing opportunities and submit feedback wherever you are. The Centercode app makes participating in user tests easier than ever. Help shape the future of your favorite technology. With the Centercode app, you can provide feedback about your product experiences as they are happening, wherever they happen. Centercode puts everything you need to participate in user tests for the latest products by leading tech companies in the palm of your hand: • Participate in alpha, beta, and delta tests • Apply for exclusive testing opportunities • Access all of your projects from one place • Keep on top of activities and test schedules • Report bugs and usability issues • Share ideas for new features or improvements • Collaborate with fellow testers • Manage your tester profile PLEASE NOTE: The Centercode app is available only for members of Centercode private and public testing communities.

About

National CompCalc

Features
Read full description

National 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. - 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). - AMA WPI Table/Formula from AMA Guides. 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 National 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 National CompCalc is encourage to retain legal counsel before using this product. National, CompCalc, and ndi-records.com 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.

Screenshots

Centercode4 screens
National CompCalc4 screens

Verdict

The call

The clearest difference is iOS requirement: National CompCalc at 12.0 against Centercode's 15.0. 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

Centercode ships an update every 2 months, National CompCalc every 6 weeks. The most recent releases landed on November 3, 2026 and November 9, 2026 respectively.

Scorecard1 real difference · 9 level
Centercode versus National CompCalc: the parameters behind the verdict, then further details
ParameterCentercodeNational CompCalc
PriceFreeFree
Rating3.6 (10 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 2 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.012.0 — better
Further details — not scored
Size69 MB40 MB
Age rating4+4+
DeveloperCentercodeThomas Smith

In-app purchases

None

Centercode

No in-app purchases

None

National CompCalc

No in-app purchases

Questions

Is Centercode free?
Centercode is free to download, with no in-app purchases.
Is National CompCalc free?
National CompCalc is free to download, with no in-app purchases.
Do Centercode or National CompCalc have ads?
Neither Centercode nor National CompCalc shows ads.
Which is updated more often, Centercode or National CompCalc?
Centercode ships an update every 2 months, and National CompCalc every 6 weeks. Most recently, Centercode was updated on November 3, 2026 and National CompCalc on November 9, 2026.

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