# Scala Architectural Scale > To measure printed drawings Canonical page: [https://chrome-stats.com/d/id1090018333](https://chrome-stats.com/d/id1090018333) ## Overview - **ID:** `id1090018333` - **Platform:** Apple - **Type:** Apple app - **Status:** Available - **Publisher:** Noerah Alvi - **Category:** Utilities - **Rating:** 4.60 / 5 (24 ratings) - **Version:** 2.2 - **Last updated:** 2025-11-24 - **First published:** 2016-04-22 - **Size:** 1.22 MB - **Data as of:** 2026-09-22 - **Store listing:** [Apple App Store](https://apps.apple.com/us/app/scala-architectural-scale/id1090018333) - **Website:** [http://steeltreelabs.com](http://steeltreelabs.com/) - **Privacy policy:** [http://www.steeltreelabs.com/privacy-policy/](http://www.steeltreelabs.com/privacy-policy/) ## Description Let Scala Architectural and Engineering Scale change the way you measure printed drawings on the go and at your desk. With fixed and variable scales there is no limit to measuring a printed drawing of any scale, even if the scale is unknown. FIXED SCALES If you know the scale of a drawing, place your device on the drawing, scroll to the scale of the printed drawing and watch the chosen scale slide in. VARIABLE SCALES If the scale of a drawing is unknown, slide your finger on the variable scale and match the scale of one known element, lock it and use it to measure all elements on that drawing. MEASURING Slide the measurement slider in fixed or variable scale modes, along the scale to see the desired measurement displayed. SECONDARY UNITS Choose secondary units to be displayed while measuring, to quickly convert between metric, decimal feet and feet and inches. PRECISION Control the precision of the measurement units. —-— Scala Free Version includes: ARCHITECTURAL Fixed Scales: Full Scale (12”=1’-0”), 6”=1’-0”, 3”=1’-0”, 1 1/2”=1’-0”, 1”=1’-0”, 3/4”=1’-0” Variable Scale Range: Between full scale and 1/32”=1’-0” ENGINEERING Fixed Scales: 1”=10’, 1”=20’, 1”=30’, 1”=40’, 1”=50’ and 1”=60’ Variable Scale Range: Between 1”=10’ and 1”=300’ METRIC Fixed Scales: 1:1, 1:2, 1:5, 1:10, 1:20, 1:25 Variable Scale Range: Between 1:1 and 1:1000 Scala Full Version includes all scales above plus the following: ARCHITECTURAL Fixed Scales: 1/2”=1’-0”, 3/8”=1’-0”, 1/4”=1’-0”, 3/16”=1’-0”, 1/8”=1’-0”, 3/32”=1’-0”, 1/16”=1’-0”, 1/32"=1'-0" ENGINEERING Fixed Scales: 1"=80', 1"=100', 1"=200', 1"=300' METRIC Fixed Scales: 1:30, 1:40, 1:50, 1:75, 1:100, 1:125, 1:200, 1:250, 1:300, 1:400, 1:500, 1:1000 —-— ## Rankings - #231,504 — Overall ## Review summary Users praise Scala Architectural Scale for exceptional accuracy and a strong variable-scale feature, making field measurements fast and reliable with a clean, intuitive UI. Top drawbacks include device-bound measurement length, premium gating for standard scales, missing decimal-inch readouts and numeric input for scales, and a non-movable ruler. Overall, the app is valued for on-site usefulness and design quality, with ongoing requests for extended measurement range and more scalable options without upgrading. ### Pros - Very high accuracy, with users noting it is as accurate as, or even more accurate than, traditional architectural scales. - Valuable variable/non-standard scales feature that lets you set custom scales for non-standard drawings. - Excellent for on-site and field measurements—quick, handy, and useful in the office as well. - Clean, simple, and intuitive UI with a beautiful interface that’s easy to switch between fixed and scalable measurements. - Broad device support (works well on iPhone and iPad Pro), making it a dependable toolkit staple for designers and engineers. ### Cons - Length/measurement range is limited by the device screen (roughly 5.5 inches on iPhone), with requests to extend the scale beyond the visible screen. - Access to standard scales and other features sometimes requires upgrading to a premium version, which some users view as a gating barrier. - Missing decimal inch/mechanical scale options and a numeric entry method for the variable scale; requests for decimal readouts and easier numeric input are recurring. - Ruler appears fixed at a point and cannot be moved along the scale, which limits flexibility for certain measurements. - Some users express frustration with the need to upgrade for additional scales, balancing the pros against the cost. ## Similar extensions and apps - [Scale Calculator Easy](https://chrome-stats.com/d/id6768531436) - [ArchitectScaler](https://chrome-stats.com/d/id6748638487) - [Scale Ratio](https://chrome-stats.com/d/id1448744741) — 3.70 / 5 - [ScaleAloha](https://chrome-stats.com/d/id6754256877) - [Archiscale-scale,formula,ruler](https://chrome-stats.com/d/id6692609479) - [Scala - AR Room Measurements](https://chrome-stats.com/d/id6757276570) — 5.00 / 5 - [Scales HD](https://chrome-stats.com/d/id418843481) — 4.00 / 5 - [ScaleTap: PDF Plan Measure](https://chrome-stats.com/d/id6465698855) — 5.00 / 5 - [RefScale: Photo Ruler](https://chrome-stats.com/d/id6760479484) - [My Measures + AR Measure](https://chrome-stats.com/d/id628109928) — 4.30 / 5 - [Model Scaler](https://chrome-stats.com/d/id528641484) — 2.90 / 5 - [Archisketch](https://chrome-stats.com/d/id725328455) — 4.30 / 5 --- Source: [Chrome-Stats](https://chrome-stats.com/d/id1090018333)