Comparison

Scala Architectural Scale vs Scale Conversion Calculator

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

Head to head
About

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.

Highlights
  • 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
Features
Read full 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 —-—

About

Scale Conversion Calculator

This utility app facilitates weight conversions between Metric, Gross, and Net tons. It also allows for the calculation of price rates based on weight and other related calculations.

Highlights
  • Metric ton conversion
  • Gross ton conversion
  • Net ton conversion
  • Price rate per weight calculation
  • Other weight-related calculations
Features
Read full description

TMS International Weight Conversion Calculator to convert between Metric, Gross, and Net tons; and calculate price rate per weight; as well as other calculations. All contents of TMS's Conversion Calculator is provided "as is", without warranty of any kind.

Screenshots

Scala Architectural Scale4 screens
Scale Conversion Calculator2 screens

Verdict

The call

The clearest difference is in-app purchases: Scale Conversion Calculator at none against Scala Architectural Scale's 1. Scale Conversion Calculator also leads on update cadence (every 5 days vs every 4 months) and review sentiment (100% vs 87%). Scala Architectural Scale's advantage is ratings volume (25 vs 4). On price, rating, ads and monetization model 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. Scala Architectural Scale sells 1 one-off in-app purchase. Scale Conversion Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Scala Architectural Scale against 4.5 for Scale Conversion Calculator. That said, the two scores are not equally well evidenced: Scala Architectural Scale has 25 ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 87% of Scala Architectural Scale's written reviews are positive against 100% of Scale Conversion Calculator's.

UpkeepUpdate frequency

Scala Architectural Scale ships an update every 4 months, Scale Conversion Calculator every 5 days. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
Scala Architectural Scale versus Scale Conversion Calculator: the parameters behind the verdict, then further details
ParameterScala Architectural ScaleScale Conversion Calculator
PriceFreeFree
Rating4.6 (25 ratings) — better4.5 (4 ratings)
Positive reviews86.7% of reviews100.0% of reviews — better
Number of ratings25 — better4
Update frequencyEvery 4 monthsEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.611.0 — better
Further details — not scored
Size1 MB20 MB
Age rating4+4+
DeveloperNoerah AlviTMS International LLC

Customer experience

Scala Architectural Scale

All ratings25 ratings
Positive88.0%
Neutral8.0%
Negative4.0%
Written reviews15 reviews
Positive86.7%
Neutral0.0%
Negative13.3%

Scale Conversion Calculator

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Scala Architectural Scale

One-time1
  • Scala Full Version$2.99
None

Scale Conversion Calculator

No in-app purchases

Questions

Is Scala Architectural Scale free?
Scala Architectural Scale is free to download, with in-app purchases available.
Is Scale Conversion Calculator free?
Scale Conversion Calculator is free to download, with no in-app purchases.
Which has better reviews, Scala Architectural Scale or Scale Conversion Calculator?
Scala Architectural Scale is rated higher. Scala Architectural Scale averages 4.6 out of 5 from 25 ratings, while Scale Conversion Calculator averages 4.5 from 4 ratings.
Do Scala Architectural Scale or Scale Conversion Calculator have ads?
Neither Scala Architectural Scale nor Scale Conversion Calculator shows ads.
Which is updated more often, Scala Architectural Scale or Scale Conversion Calculator?
Scala Architectural Scale ships an update every 4 months, and Scale Conversion Calculator every 5 days. Most recently, Scala Architectural Scale was updated on October 5, 2026 and Scale Conversion Calculator on October 12, 2026.

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