Comparison

Spectrum vs ArchitectScaler

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

Head to head
About

Spectrum

Features
Read full description

Turn your iPhone or iPad into a professional audio tool. Spectrum-V lets you measure, visualize, and explore sound with precision β€” perfect for musicians, audio engineers, and enthusiasts. Key Features β€’ Waveform Analyzer – Monitor live audio waveforms directly from the microphone. β€’ Spectrum Analyzer (FFT) – View frequency distribution with a fast and colorful FFT spectrum. β€’ Spectrogram (Waterfall) – Explore sound energy over time with a vivid spectrogram display. β€’ dB Meter – Check sound levels instantly with a responsive decibel meter (dBFS). β€’ Tuner – Detect pitch and musical notes in real time β€” great for guitar, vocals, or any instrument. Spectrum-V combines simplicity with powerful analysis tools, making it easy to visualize sound whether you’re practicing music, testing acoustics, or just exploring the audio world.

About

ArchitectScaler

Features
Read full description

Tired of bulky scale rulers and clunky calculators? ArchitectScaler is the clean, powerful, and elegant scaling utility designed by an architect, for architects, designers, and students. Turn your iPhone into a professional-grade scale tool that works as fast as you think. Our intuitive "Live Ledger" interface allows you to perform multiple, two-way calculations in real-time. Just set your scale, and every number you enter is instantly converted. No extra taps, no "calculate" buttonβ€”it just works. KEY FEATURES: - Instant, Two-Way Calculations: Enter a real-world value to get the scaled drawing size, or enter a drawing measurement to find the real-world equivalent. It happens live! - Universal Unit Support: Seamlessly work with all the units you need: meters (m), centimeters (cm), millimeters (mm), kilometers (km), feet (ft), and inches (in). - Fully Customizable Scale: Use standard architectural scales (1:50, 1:200, etc.) from our quick list, or type in any custom scale you need for unique projects. - Gorgeous Light & Dark Modes: ArchitectScaler is beautiful to use day or night, with a meticulously designed interface that respects your system's theme. - Absolutely No Data Collection: Your privacy is paramount. The app collects zero user data. All calculations stay on your device. Period. WHO IS ARCHITECTSCALER FOR? Professional Architects Interior Designers Engineering & Architecture Students Model Makers & Hobbyists Anyone working with scaled drawings or blueprints. Built from a passion for clean design and efficient workflows, ArchitectScaler is the utility we always wanted for ourselves. We hope it helps you in your creative process. Download ArchitectScaler today and simplify your scaling workflow forever!

Screenshots

Spectrum4 screens
ArchitectScaler4 screens

Verdict

The call

The clearest difference is price: ArchitectScaler at Free against Spectrum's $5.99. ArchitectScaler also leads on in-app purchases (none vs 1). Spectrum's advantage is iOS requirement (15.0 vs 17.6). On ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

ArchitectScaler is free to download; Spectrum costs $5.99 up front. Spectrum sells 1 one-off in-app purchase. ArchitectScaler asks for nothing beyond the download.

Scorecard3 real differences Β· 3 level
Spectrum versus ArchitectScaler: the parameters behind the verdict, then further details
ParameterSpectrumArchitectScaler
Price$5.99Free β€” better
Update frequencyEvery 2 weeksβ€”
AdsNoNo
In-app purchasesYesNo β€” better
DevicesiPhone, iPad, iPod β€” betteriPhone, iPad
Requires iOS15.0 β€” better17.6
Further details β€” not scored
Size10 MB1 MB
Age rating4+4+
DeveloperVictor SerovPratheek Balakrishna

In-app purchases

1 purchases

Spectrum

One-time1
  • Pro version$0.99
None

ArchitectScaler

No in-app purchases

Questions

Is Spectrum free?
Spectrum costs $5.99, and also offers in-app purchases.
Is ArchitectScaler free?
ArchitectScaler is free to download, with no in-app purchases.
Do Spectrum or ArchitectScaler have ads?
Neither Spectrum nor ArchitectScaler shows ads.

Other comparisons