Scala Architectural Scale vs Snap Draw
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Scala Architectural Scale
This app allows users to measure printed architectural and engineering drawings directly on their device. It supports both known and unknown scales, offering fixed and variable scale options for precise measurements. Users can also select secondary units for quick conversions.
- Fixed and variable scale measurement
- Supports unknown drawing scales
- Secondary unit conversions (metric, decimal feet, feet/inches)
- Adjustable measurement precision
- Extensive scale options for architectural, engineering, and metric drawings
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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 —-—
Snap Draw
This app helps you create detailed plans and drawings with intuitive touch controls. It provides auditory and visual feedback when lines connect, ensuring accuracy. Save, export, and share your creations in various formats, ideal for both casual fun and professional design.
- Auditory and visual line connection feedback
- Save up to 75 projects
- Export as PNG, SVG, PDF
- Add per-line notes with measurements
- Built-in shapes and features
- Draw lines and arcs, edit curves
- Zoom and pan for detail
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Snap Draw is a simple to use and powerful app to help you make detailed plans or simple drawings. Hear and see a Snap when lines are connected, easing your ability to draw with your finger and KNOW the lines are lining up or joining. This is a feature that sets Snap Draw apart from other vector drawing apps - the ability to know what is under your fingertip (since humans don't have transparent fingers yet) *Save up to 75 projects on your device *Export and share your creations online as .png, svg., or .pdf formats *Ability to add and edit per line notes showing it's length and handles, ideal for blueprints *Built in shapes and features, like doors, walls, circles, squares and more! *Draw lines and arcs, stretch a line into a curve and edit it at will *Zoom and Pan to get the details just right *Email your drawing as a .svg and edit in professional vector art and cad design software *Great for casual drawing fun, or design your deck with measurements!
Screenshots
Verdict
The clearest difference is review sentiment: Scala Architectural Scale at 87% against Snap Draw's 15%. Scala Architectural Scale also leads on rating (4.6 vs 2.2) and ads (none vs shown). Snap Draw's advantage is in-app purchases (none vs 1) and update cadence (fortnightly vs every 4 months). On price, ratings volume 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
Both are free to download. Scala Architectural Scale sells 1 one-off in-app purchase. Snap Draw asks for nothing beyond the download.
Scala Architectural Scale holds the better App Store score, 4.6 against 2.2. Both are backed by a comparable volume of ratings — 25 and 20 respectively. Written reviews point the same way: 87% of Scala Architectural Scale's written reviews are positive against 15% of Snap Draw's.
Scala Architectural Scale ships an update every 4 months, Snap Draw fortnightly. The most recent releases landed on July 17, 2026 and September 12, 2026 respectively.
| Parameter | Scala Architectural Scale | Snap Draw |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (25 ratings) — better | 2.2 (20 ratings) |
| Positive reviews | 86.7% of reviews — better | 15.4% of reviews |
| Number of ratings | 25 — better | 20 |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 11.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Noerah Alvi | andrew bell |
Customer experience
Scala Architectural Scale
Snap Draw
In-app purchases
Scala Architectural Scale
- Scala Full Version$2.99
Snap Draw
No in-app purchases
Questions
Is Scala Architectural Scale free?
Is Snap Draw free?
Which has better reviews, Scala Architectural Scale or Snap Draw?
Do Scala Architectural Scale or Snap Draw have ads?
Which is updated more often, Scala Architectural Scale or Snap Draw?
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