--- title: "Line-Fit - Reviews, Revenue and Downloads in United States | Apple App Store" description: "The Line-Fit app uses linear regression to model the relationship between two variables (x and y) by fitting a linear equation to observed data. One variable is considered to be an explanatory (indepe" --- # Line-Fit — United States > Straight Line Regression Fit ![Line-Fit App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/82/1a/3a/821a3aa2-5b5a-cd9e-3ef6-742f1bd98b74/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/400x400bb.png) **Developer:** [Bjarne Berge](https://apptail.io/developer/bjarne-berge-BOM) **Category:** Productivity **Rating:** 3.7/5 (3 ratings) **Price:** Free **Bundle ID:** com.gowapps.Curve **Store:** Apple App Store **Country:** United States **Version:** 3.0 (released 2026-02-09) **Original Release:** 2019-06-15 **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1448053643) **AppTail Page:** [https://apptail.io/app/line-fit-lcbe/united-states](https://apptail.io/app/line-fit-lcbe/united-states) ## Line-Fit Description The Line-Fit app uses linear regression to model the relationship between two variables (x and y) by fitting a linear equation to observed data. One variable is considered to be an explanatory (independent) variable, and the other is considered to be a response (dependent) variable. A linear regression line has an equation of the form Y = a + bX, where X is the explanatory variable and Y is the dependent variable. The slope of the line is b, and the intercept is a (the value of y when x = 0). To measure the association between the two variables the correlation coefficient is used, which is a value between -1 and 1 indicating the strength of the association of the observed data for the two variables. The coefficient of determination, R2, measures how close the data are to the fitted regression line. In general, higher values of R2 indicate a better fit of the model to the given data. R2 is always positive and equal to 1.0 for a perfect fit. ## Line-Fit Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2b/78/fd/2b78fd62-9b5e-bcd0-6bde-97f05345c500/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.04.14.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/6e/d5/68/6ed568c0-29ae-7560-9663-61f2280307cf/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.04.26.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/64/5f/9f/645f9f29-0828-1e8a-1a2a-943495c6cbfd/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.04.31.png/1242x2688.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f2/7d/e8/f27de83f-c007-290e-ae56-f780ee54e877/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.04.39.png/1242x2688.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/46/d6/38/46d63876-9ef8-5581-96cb-bcdb20ff93a6/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.05.18.png/1242x2688.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/c3/1a/a3/c31aa308-3adb-b16f-bdd8-086b0d12c387/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.06.16.png/2688x1242.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2f/31/34/2f313491-0ab3-0ede-cf94-f27096db6219/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.05.43.png/2688x1242.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/8d/82/79/8d827945-87a3-b41b-6be6-ad6bd9a74079/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.06.41.png/1242x2688.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/ef/fc/93/effc93a1-cd70-3058-5605-1a11044fe604/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.06.44.png/1242x2688.png) - [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/78/98/0f/78980f6a-a29f-b517-2521-c2a6b3fa3881/Simulator_Screenshot_-_iPhone_11_Pro_Max_-_2026-02-04_at_15.07.11.png/1242x2688.png) ## Line-Fit Rating Breakdown in United States - 5 stars: 2 (67%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 1 (33%) ## Line-Fit Reviews in United States ### *---- "Probably doesn’t work" I got this app because my school calculator broke and this is absolutely horrendous every time you enter the app it starts off with a new randomly generated line which wouldn’t be that bad if there was an option to clear but there isn’t so you either have to edit it and delete each individual coordinate before writing in a new one or just delete all the coordinates you can then try to work with their system and even after typing in all the correct coordinates it doesn’t show the coordinates in the correct place -- very sad student, 2021-09-28 [View all Line-Fit reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Line-Fit Discovered Keywords - data - line-fit ## Apps Similar to Line-Fit - [Flipd: focus & study timer](https://apptail.io/app/flipd-focus-study-timer-Uqi/united-states) - [Best VPN : Unlimited VPN Proxy](https://apptail.io/app/best-vpn-unlimited-vpn-proxy-oHl/united-states) - [SpeedVPN - Fast & Secure](https://apptail.io/app/speedvpn-fast-secure-duv/united-states) - [GhostGuard - BEST VPN PROXY](https://apptail.io/app/ghostguard-best-vpn-proxy-CTx/united-states) - [NextVPN: Fast & Secure Proxy](https://apptail.io/app/nextvpn-fast-secure-proxy-DEM/united-states) - [VPN in Touch](https://apptail.io/app/vpn-in-touch-Ileb/united-states) - [Essayist: Academic Writing App](https://apptail.io/app/essayist-academic-writing-app-SDjb/united-states) - [NewNode VPN](https://apptail.io/app/newnode-vpn-Lhpb/united-states) - [Julius AI: Data & Math Helper](https://apptail.io/app/julius-ai-data-math-helper-YDto/united-states) - [Chart Builder Graph Maker](https://apptail.io/app/chart-builder-graph-maker-HaRo/united-states) ## Line-Fit Available In - [United States](https://apptail.io/app/line-fit-lcbe/united-states) - [Australia](https://apptail.io/app/line-fit-lcbe/australia) - [Bahrain](https://apptail.io/app/line-fit-lcbe/bahrain) - [Cyprus](https://apptail.io/app/line-fit-lcbe/cyprus) - [France](https://apptail.io/app/line-fit-lcbe/france) - [United Kingdom](https://apptail.io/app/line-fit-lcbe/united-kingdom) - [Jordan](https://apptail.io/app/line-fit-lcbe/jordan) - [Japan](https://apptail.io/app/line-fit-lcbe/japan) - [South Korea](https://apptail.io/app/line-fit-lcbe/south-korea) - [Kazakhstan](https://apptail.io/app/line-fit-lcbe/kazakhstan) - [Lebanon](https://apptail.io/app/line-fit-lcbe/lebanon) - [Norway](https://apptail.io/app/line-fit-lcbe/norway) - [New Zealand](https://apptail.io/app/line-fit-lcbe/new-zealand) - [Philippines](https://apptail.io/app/line-fit-lcbe/philippines) - [Russia](https://apptail.io/app/line-fit-lcbe/russia) - [South Africa](https://apptail.io/app/line-fit-lcbe/south-africa) - [Argentina](https://apptail.io/app/line-fit-lcbe/argentina) - [Singapore](https://apptail.io/app/line-fit-lcbe/singapore) - [Taiwan](https://apptail.io/app/line-fit-lcbe/taiwan) --- ## 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*