Comparison

Scale Ratio vs ArchitectScaler

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Scale Ratio

Easily convert distances between any scales for projects like architecture and model building. Input your measurements and desired scale to instantly calculate scaled distances.

Highlights
  • Convert distances between any scales
  • Supports architecture and modeling projects
  • Instant calculation of scaled distances
  • User-friendly input for distance and scale
Features
Read full description

Scale a measurement to a larger or smaller measurement, which is useful for architecture, modelling, and other projects. This app can be used to easily convert any distance in any scale to any other distance in any other scale. Simply enter the distance and scale to convert and the result will be displayed instantly. You need for example to create a mock up of a building at the scale 1:500. Enter the ground distances in the calculator, set the scale ratio to 1:500 and you'll get the mock up distance.

About

ArchitectScaler

Features
Read full description

ArchitectScaler turns your iPhone and iPad into a scale ruler, a drafting calculator, and the small toolbox of conversions architects, designers, and students actually reach for. No triangular ruler, no clunky calculator, no "calculate" button - you type, and the answer is already there. Version 2.0 opens on a Home screen of tools. Tap one and you are working. THE CONVERTER Set a scale once, then keep a live ledger of dimensions. Type a real-world length to get the drawing length, or type a drawing measurement to get the real thing - both directions, instantly. Name any row ("North wall", "Door", "Site") so a list of numbers reads as a list of things. Your rows, scale, and units are saved between launches. FEET AND INCHES, PROPERLY Type 12'-6 1/2" the way you would write it. Scales like 1/4" = 1'-0" are first-class, and a keyboard row puts the ' " - and / marks one tap away. Change a unit and the app converts the value rather than re-reading the same digits. THE TOOLS Find scale from a drawing - measure any labeled dimension on a print and get the ratio back, with the nearest named scale offered as a one-tap match. Slope and pitch - convert between 1:20, percent, degrees, and roof pitch, and get the fall over a run. Area and volume - scale squared and cubed, from square millimeters through hectares and square inches through acres, plus cubic meters, feet, and yards. Rescale and print - the copier percentage that takes a drawing from one scale to another, and what a line measures after the change. Sheet fit - whether a plan fits a sheet inside its margins, and the largest named scale that would. ISO A0 to A4, ANSI A to E, and Arch A to E1. Feet and inches - add and subtract lengths in drafting notation without converting to decimal first. Scale bar - generate a printable graphic scale and share it straight into a drawing. Model making - turn a real wall thickness into the nearest card, foam board, or acrylic sheet, and see how far off that substitution puts you. BUILT FOR THE WAY YOU WORK Metric and imperial: mm, cm, m, km, in, ft. Metric, architect, and engineering scale presets, or type any ratio you like - 1:48 and 1:37.5 are both fine. iPhone and iPad. Light and dark, following your system appearance. No account, no ads, no tracking, no data collection. Every calculation stays on your device. Built by an architect, for architects, interior designers, engineers, students, model makers, and anyone who works from a scaled drawing.

Screenshots

Scale Ratio3 screens
ArchitectScaler4 screens

Verdict

The call

The clearest difference is in-app purchases: ArchitectScaler at none against Scale Ratio's 1. Scale Ratio's advantage is update cadence (fortnightly vs every 14 months) and iOS requirement (10.0 vs 17.6). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Scale Ratio sells 1 one-off in-app purchase. ArchitectScaler asks for nothing beyond the download.

UpkeepUpdate frequency

Scale Ratio ships an update fortnightly, ArchitectScaler every 14 months. The most recent releases landed on September 20, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 7 level
Scale Ratio versus ArchitectScaler: the parameters behind the verdict, then further details
ParameterScale RatioArchitectScaler
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews83.3% of reviews—
Number of ratings3 — better—
Update frequencyFortnightly — betterEvery 14 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS10.0 — better17.6
Further details — not scored
Size25 MB3 MB
Age rating4+4+
DeveloperAdrien BrecheteauPratheek Balakrishna

In-app purchases

1 purchases

Scale Ratio

One-time1
  • Delete Ads in the app$4.99
None

ArchitectScaler

No in-app purchases

Questions

Is Scale Ratio free?
Scale Ratio is free to download, with in-app purchases available.
Is ArchitectScaler free?
ArchitectScaler is free to download, with no in-app purchases.
Do Scale Ratio or ArchitectScaler have ads?
Neither Scale Ratio nor ArchitectScaler shows ads.
Which is updated more often, Scale Ratio or ArchitectScaler?
Scale Ratio ships an update fortnightly, and ArchitectScaler every 14 months. Most recently, Scale Ratio was updated on September 20, 2026 and ArchitectScaler on September 30, 2026.

Other comparisons