Best Xray Timer Apps

197+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated June 2026

Finding the right xray timer apps can be overwhelming with so many options. We've analyzed 197+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Xray Timer Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1X-Ray TimerX-Ray TimerFree4.8★ (8)NoNoMay 2026
2Gamma Calculator ProGamma Calculator Pro$3.993.6★ (19)NoNoAug 2026
3NDT X-ray ToolboxNDT X-ray ToolboxFree5.0★ (3)NoNoJul 2026
4Repeat Timer: Interval RemindRepeat Timer: Interval RemindFree4.5★ (7.4K)NoYesSep 2026
5Timer & stopwatch - TimeglassTimer & stopwatch - TimeglassFree4.7★ (1.4K)NoYesAug 2026
6Timer+ Countdown & StopwatchTimer+ Countdown & StopwatchFree4.8★ (41K)YesYesSep 2026
7Visual Countdown TimerVisual Countdown TimerFree4.6★ (40K)YesYesSep 2026
8Timer ٞTimer ٞFree4.4★ (1.2K)YesNoSep 2026

Top Picks for Xray Timer

X-Ray Timer#1

X-Ray Timer by Lance Henderson

Editor's Choice
🔧 Utilities
4.8(8 ratings)
Free
X-Ray Timer screenshot 1
X-Ray Timer screenshot 2

Calculate radiography shot times for industrial radiographers using radioactive materials. Quickly determine exposure time by inputting curies, steel thickness, and source-to-film distance.

Gamma Calculator Pro#2

Gamma Calculator Pro by Gerrit kleyn Winkel

Strong Contender
💼 Business
3.6(19 ratings)
$3.99
#20in Business
Gamma Calculator Pro screenshot 1
Gamma Calculator Pro screenshot 2
Gamma Calculator Pro screenshot 3
Gamma Calculator Pro screenshot 4
Gamma Calculator Pro screenshot 5

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.

More Xray Timer apps to explore

FAQ about Xray Timer

What are the best xray timer apps for iPhone?
X-Ray Timer tops our xray timer apps ranking as of June 2026, with a 4.8-star average from 8 App Store ratings, and it's free to download.
Yes — 18 of the top xray timer apps we rank are free to download, including X-Ray Timer and NDT X-ray Toolbox.
X-Ray Timer has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
We track 197+ xray timer apps on the iOS App Store as of June 2026, ranked by rating, recency, and analysis of real user reviews.
This application is designed to calculate radiography shot times for industrial radiographers. It replaces the need for traditional slide rules by providing a quick and efficient digital solution for determining exposure times.
The app allows users to input the number of curies, the thickness of steel in inches, and the source-to-film distance in inches. It then calculates the necessary exposure time. It is specifically designed for use with Iridium and Cobalt radioactive sources.

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