Comparison

Gamma Calculator Pro vs GOARC

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

Head to head
About

Gamma Calculator Pro

This app simplifies radiation exposure calculations for industrial radiography sources like Iridium-192. It allows users to input thickness, activity, and distance to determine correct exposure times, and also offers features for geometric unsharpness, exposure correction, and decay calculations.

Highlights
  • Exposure Time Calculator
  • Geometric Unsharpness Calculator
  • Exposure Correction Calculator
  • Decay Calculator
  • Barricade Calculator
  • Pipe Schedule Selector
  • Material Density Calculations
Features
Currently charting
Read full description

Save time with this exposure calculator for Iridium-192, Selinium-75 and Cobalt-60 sources. No more need to calculate the formula or use of the "old-school plastic calculator" Simply fill in the thickness, activity(in Curies) and source-film-distance and you get the correct exposure time. R factor for different densities and film types. For materials: Iron(steel), Concrete, Tungsten, Lead, Aluminum, Titanium, Copper, Zinc, Brass, Inconel X, Zirconium and Uranium. Features: - Exposure Time calculator - Geometric Unsharpness calculator - Exposure Correction calculator - Decay calculator - Barricade calculator - Pipe Schedule selector (single/double wall) - Weld enforcement setting - Iridium 192 Emissivity setting - inch/mm setting

About

GOARC

This enterprise solution connects best practices and organizational knowledge to enhance safety performance. It uses predictive analytics to prevent work accidents, saving lives and money while empowering compliance.

Highlights
  • Predictive analytics for accident prevention
  • Improves safety performance
  • Empowers compliance
  • Connects best practices and organizational know-how
  • Reduces risks for accidents
Features
Read full description

Every Job. Done Right. GOARC is a worker-centered Control of Work platform connecting frontline execution with operational visibility and control. Built for industrial environments, GOARC brings job instructions, safety requirements, and operating context into the flow of work, helping employees and contractors perform their jobs safely and correctly. With GOARC, your teams can: • Access and manage permits to work. • Report hazards, observations, and incidents. • Follow work instructions and complete safety checklists. • Create and track follow-up actions. • Share critical information across teams and shifts. Guidance at the frontline. Control across the operation. Keep workers connected to what they need to do, while giving Operations, Maintenance, and HSE visibility into work in progress and issues that need attention. Safer work. More reliable operations. A GOARC account provided by your organization is required. Available features depend on your organization's configuration and your user permissions.

Screenshots

Gamma Calculator Pro4 screens
GOARC4 screens

Verdict

The call

The clearest difference is review sentiment: GOARC at 100% against Gamma Calculator Pro's 53%. GOARC also leads on price (Free vs $3.99) and update cadence (every 6 weeks vs every 5 months). Gamma Calculator Pro's advantage is chart position (#12 vs unranked). On ads, in-app purchases and device support 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

GOARC is free to download; Gamma Calculator Pro costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Gamma Calculator Pro ships an update every 5 months, GOARC every 6 weeks. Both last shipped on November 6, 2026.

Scorecard6 real differences · 5 level
Gamma Calculator Pro versus GOARC: the parameters behind the verdict, then further details
ParameterGamma Calculator ProGOARC
Price$3.99Free — better
Rating3.6 (19 ratings) — better—
Positive reviews52.9% of reviews100.0% of reviews — better
Number of ratings19 — better—
Update frequencyEvery 5 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
Best chart rank#12 — better—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.615.6 — better
Further details — not scored
Size3 MB26 MB
Age rating17+4+
DeveloperGerrit kleyn WinkelGo-Arc LTD.

Customer experience

Gamma Calculator Pro

All ratings19 ratings
Positive63.2%
Neutral5.3%
Negative31.6%
Written reviews17 reviews
Positive52.9%
Neutral11.8%
Negative35.3%

GOARC

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

In-app purchases

None

Gamma Calculator Pro

No in-app purchases

None

GOARC

No in-app purchases

Questions

Is Gamma Calculator Pro free?
Gamma Calculator Pro costs $3.99, with no in-app purchases.
Is GOARC free?
GOARC is free to download, with no in-app purchases.
Do Gamma Calculator Pro or GOARC have ads?
Neither Gamma Calculator Pro nor GOARC shows ads.
Which is updated more often, Gamma Calculator Pro or GOARC?
Gamma Calculator Pro ships an update every 5 months, and GOARC every 6 weeks. Most recently, Gamma Calculator Pro was updated on November 6, 2026 and GOARC on November 6, 2026.

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