--- title: "NASA TLX - Reviews, Revenue and Downloads in United States | Apple App Store" description: "The Official NASA Task Load Index (TLX) App, widely regarded as the gold standard for measuring subjective workload across a wide range of industries, enables researchers to easily perform assessments" --- # NASA TLX — United States ![NASA TLX App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple118/v4/81/d2/08/81d2084f-7549-3149-9db9-2c6646e34e5d/mzl.jetuhwuw.png/434x0w.png) **Developer:** [NASA](https://apptail.io/developer/nasa-QpI) (United States) **Category:** Productivity **Rating:** 3.6/5 (11 ratings) **Price:** Free **Bundle ID:** gov.nasa.arc.th.NASA-TLX.dist **Store:** Apple App Store **Country:** United States **Version:** 1.0.3 (released 2018-09-18) **Original Release:** 2017-02-15 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1168110608) **AppTail Page:** [https://apptail.io/app/nasa-tlx-mTfb/united-states](https://apptail.io/app/nasa-tlx-mTfb/united-states) ## NASA TLX Description The Official NASA Task Load Index (TLX) App, widely regarded as the gold standard for measuring subjective workload across a wide range of industries, enables researchers to easily perform assessments on operators working with various human-machine interface systems. By incorporating a multi-dimensional rating procedure, the NASA TLX derives an overall workload score based on a weighted average of ratings on six sub scales: ∙ Mental Demand ∙ Physical Demand ∙ Temporal Demand ∙ Performance ∙ Effort ∙ Frustration Originally developed as a paper and pencil questionnaire by NASA Ames Research Center’s (ARC) Sandra Hart in the 1980s, the NASA TLX is the benchmark against which the efficacy of other measures, theories, or models are judged. The NASA TLX has been successfully used around the world to assess workload in various environments such as aircraft cockpits; command, control, and communication (C3) workstations; supervisory and process control; and simulations and laboratory tests. The NASA TLX app for iOS dramatically increases the outreach and accessibility for the research and development community, and enables mobile and contextual assessments (e.g., in an airplane cockpit during/after flight, rather than at a desktop computer in a lab). It offers several key features that benefits both researchers and participants: Privacy The NASA TLX has been designed to ensure the privacy of research participant data. The NASA TLX anonymizes all results and does not send any personal identifiable information (PII) to any data servers. Location Flexibility The NASA TLX app can be used anywhere, even without a network connection, so researchers can have participants complete a NASA TLX evaluation in the field, outside the confines of a desktop office environment. The NASA TLX results are calculated on the device, and, once a network connection is available, collected data can be securely uploaded to servers for analysis. This frees researchers from being burdened by the task of tracking individual paper forms. Simple Study Setup Researchers can set up studies quickly and reduce typing on the NASA TLX app by scanning a pre-generated QR code from within the app, which automatically populates the study name, subject ID, and trial number in the app. ## NASA TLX Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple122/v4/59/99/13/599913b2-31b8-fb65-6334-bc21c2628226/pr_source.png/2048x2732.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple122/v4/4c/81/56/4c815654-0b37-2b2b-253c-a6065683470b/pr_source.png/2048x2732.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple111/v4/a9/3e/53/a93e53f5-4473-dda4-a377-17bcd11afc30/pr_source.png/2048x2732.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple122/v4/46/7d/5f/467d5f7f-8892-5a0f-965c-4c65b2a7c264/pr_source.png/2048x2732.png) ## NASA TLX Rating Breakdown in United States - 5 stars: 7 (64%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 4 (36%) ## NASA TLX Reviews in United States ### *---- "Glitchy" App crashes every time I hit “get started” -- thelastmash, 2024-05-01 ### *---- "Slow" Getting invalid results from an app that is not responding to taps. Users are frustrated and randomly tapping and not completing the survey. -- Sedated, 2023-03-24 ### *---- "When trying to share data app freezes" Whenever I try to export data to either my email or a file in my phone the app freezes. Also, there is no way of selecting multiple files to export -- juanAntonio95, 2021-03-01 ### ***** "Great app helps our research" This is a truly great app to help us assess the workload in a easier and faster way. Just one complaint: would you please rearrange the results history so that I could find my results quicker. The current arrangement seems to be randomized. -- QuantumFe, 2020-03-01 [View all NASA TLX reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Apps Similar to NASA TLX - [DroneLogbook Companion](https://apptail.io/app/dronelogbook-companion-ZAQ/united-states) - [CloudAhoy](https://apptail.io/app/cloudahoy-ffV/united-states) - [WorkStudy+ 7 for Time Study](https://apptail.io/app/workstudy-7-for-time-study-rwab/united-states) - [Production Time Study](https://apptail.io/app/production-time-study-aIab/united-states) - [Sciwheel](https://apptail.io/app/sciwheel-masb/united-states) - [SHMLive](https://apptail.io/app/shmlive-iowl/united-states) - [SEC Expo](https://apptail.io/app/sec-expo-IZjn/united-states) - [IMSH 2026](https://apptail.io/app/imsh-2026-XXLo/united-states) - [XPONENTIAL 2024](https://apptail.io/app/xponential-2024-CZJp/united-states) ## NASA TLX Available In - [United States](https://apptail.io/app/nasa-tlx-mTfb/united-states) - [India](https://apptail.io/app/nasa-tlx-mTfb/india) - [Germany](https://apptail.io/app/nasa-tlx-mTfb/germany) - [United Kingdom](https://apptail.io/app/nasa-tlx-mTfb/united-kingdom) - [China](https://apptail.io/app/nasa-tlx-mTfb/china) - [Türkiye](https://apptail.io/app/nasa-tlx-mTfb/turkey) - [Indonesia](https://apptail.io/app/nasa-tlx-mTfb/indonesia) - [France](https://apptail.io/app/nasa-tlx-mTfb/france) - [Australia](https://apptail.io/app/nasa-tlx-mTfb/australia) - [Canada](https://apptail.io/app/nasa-tlx-mTfb/canada) - [Saudi Arabia](https://apptail.io/app/nasa-tlx-mTfb/saudi-arabia) - [Switzerland](https://apptail.io/app/nasa-tlx-mTfb/switzerland) - [Chile](https://apptail.io/app/nasa-tlx-mTfb/chile) - [Colombia](https://apptail.io/app/nasa-tlx-mTfb/colombia) - [Cyprus](https://apptail.io/app/nasa-tlx-mTfb/cyprus) - [Czechia](https://apptail.io/app/nasa-tlx-mTfb/czechia) - [Denmark](https://apptail.io/app/nasa-tlx-mTfb/denmark) - [Dominican Republic](https://apptail.io/app/nasa-tlx-mTfb/dominican-republic) - [Algeria](https://apptail.io/app/nasa-tlx-mTfb/algeria) - [Ecuador](https://apptail.io/app/nasa-tlx-mTfb/ecuador) - [Estonia](https://apptail.io/app/nasa-tlx-mTfb/estonia) - [Egypt](https://apptail.io/app/nasa-tlx-mTfb/egypt) - [Spain](https://apptail.io/app/nasa-tlx-mTfb/spain) - [Finland](https://apptail.io/app/nasa-tlx-mTfb/finland) - [Greece](https://apptail.io/app/nasa-tlx-mTfb/greece) - [Hong Kong SAR China](https://apptail.io/app/nasa-tlx-mTfb/hong-kong) - [Croatia](https://apptail.io/app/nasa-tlx-mTfb/croatia) - [Hungary](https://apptail.io/app/nasa-tlx-mTfb/hungary) - [Ireland](https://apptail.io/app/nasa-tlx-mTfb/ireland) - [Israel](https://apptail.io/app/nasa-tlx-mTfb/israel) - [Iceland](https://apptail.io/app/nasa-tlx-mTfb/iceland) - [Italy](https://apptail.io/app/nasa-tlx-mTfb/italy) - [Japan](https://apptail.io/app/nasa-tlx-mTfb/japan) - [South Korea](https://apptail.io/app/nasa-tlx-mTfb/south-korea) - [Kuwait](https://apptail.io/app/nasa-tlx-mTfb/kuwait) - [Kazakhstan](https://apptail.io/app/nasa-tlx-mTfb/kazakhstan) - [Lebanon](https://apptail.io/app/nasa-tlx-mTfb/lebanon) - [Sri Lanka](https://apptail.io/app/nasa-tlx-mTfb/sri-lanka) - [Lithuania](https://apptail.io/app/nasa-tlx-mTfb/lithuania) - [Luxembourg](https://apptail.io/app/nasa-tlx-mTfb/luxembourg) - [Latvia](https://apptail.io/app/nasa-tlx-mTfb/latvia) - [Madagascar](https://apptail.io/app/nasa-tlx-mTfb/madagascar) - [North Macedonia](https://apptail.io/app/nasa-tlx-mTfb/north-macedonia) - [Malta](https://apptail.io/app/nasa-tlx-mTfb/malta) - [Mauritius](https://apptail.io/app/nasa-tlx-mTfb/mauritius) - [Mexico](https://apptail.io/app/nasa-tlx-mTfb/mexico) - [Malaysia](https://apptail.io/app/nasa-tlx-mTfb/malaysia) - [Nigeria](https://apptail.io/app/nasa-tlx-mTfb/nigeria) - [Netherlands](https://apptail.io/app/nasa-tlx-mTfb/netherlands) - [Norway](https://apptail.io/app/nasa-tlx-mTfb/norway) - [Nepal](https://apptail.io/app/nasa-tlx-mTfb/nepal) - [New Zealand](https://apptail.io/app/nasa-tlx-mTfb/new-zealand) - [Peru](https://apptail.io/app/nasa-tlx-mTfb/peru) - [Philippines](https://apptail.io/app/nasa-tlx-mTfb/philippines) - [Pakistan](https://apptail.io/app/nasa-tlx-mTfb/pakistan) - [Poland](https://apptail.io/app/nasa-tlx-mTfb/poland) - [Portugal](https://apptail.io/app/nasa-tlx-mTfb/portugal) - [Romania](https://apptail.io/app/nasa-tlx-mTfb/romania) - [Russia](https://apptail.io/app/nasa-tlx-mTfb/russia) - [Singapore](https://apptail.io/app/nasa-tlx-mTfb/singapore) - [Slovenia](https://apptail.io/app/nasa-tlx-mTfb/slovenia) - [Slovakia](https://apptail.io/app/nasa-tlx-mTfb/slovakia) - [Thailand](https://apptail.io/app/nasa-tlx-mTfb/thailand) - [Tunisia](https://apptail.io/app/nasa-tlx-mTfb/tunisia) - [South Africa](https://apptail.io/app/nasa-tlx-mTfb/south-africa) - [Armenia](https://apptail.io/app/nasa-tlx-mTfb/armenia) - [Argentina](https://apptail.io/app/nasa-tlx-mTfb/argentina) - [Austria](https://apptail.io/app/nasa-tlx-mTfb/austria) - [Azerbaijan](https://apptail.io/app/nasa-tlx-mTfb/azerbaijan) - [Belgium](https://apptail.io/app/nasa-tlx-mTfb/belgium) - [Bulgaria](https://apptail.io/app/nasa-tlx-mTfb/bulgaria) - [Bahrain](https://apptail.io/app/nasa-tlx-mTfb/bahrain) - [Brunei](https://apptail.io/app/nasa-tlx-mTfb/brunei) - [Brazil](https://apptail.io/app/nasa-tlx-mTfb/brazil) - [Belarus](https://apptail.io/app/nasa-tlx-mTfb/belarus) - [Uzbekistan](https://apptail.io/app/nasa-tlx-mTfb/uzbekistan) - [Vietnam](https://apptail.io/app/nasa-tlx-mTfb/vietnam) - [United Arab Emirates](https://apptail.io/app/nasa-tlx-mTfb/united-arab-emirates) - [Taiwan](https://apptail.io/app/nasa-tlx-mTfb/taiwan) - [Ukraine](https://apptail.io/app/nasa-tlx-mTfb/ukraine) - [Panama](https://apptail.io/app/nasa-tlx-mTfb/panama) - [Jordan](https://apptail.io/app/nasa-tlx-mTfb/jordan) - [Venezuela](https://apptail.io/app/nasa-tlx-mTfb/venezuela) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*