Comparison

Studio Calculator vs NinetyPhaser

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

Head to head
About

Studio Calculator

This app provides fast, smart, and accurate music-related calculations for audio professionals. It intelligently determines results based on the values you input, eliminating the need to search external resources. Stay focused on your work with instant answers for tempo, delay, pitch, duration, and more.

Highlights
  • BPM & tempo calculations
  • Delay & phase alignment
  • Time-stretch & pitch shift
  • Duration & file size
  • Frequency to MIDI note
  • Frame-based timing
  • Tap tempo input
Features
Read full description

Studio Calculator is your go-to app for fast, smart, and accurate music-related calculations. Simply add the values you know and the app will intelligently figure out what it can calculate for you.. No more digging through menus or websites mid-session. Stay in focus and get instant answers for: BPM & tempo calculations Delay & phase alignment Time-stretch & pitch shift Duration & file size Frequency to MIDI note Frame-based timing for video ...and much more ### Real-World Examples: • Microphone delay in samples? Just enter the distance in meters. The app gives you time in seconds, samples, and more (automatically adjusted to your sample rate) • Need all delay times for a BPM? Tap or enter the BPM—see delay times in ms, seconds, or Hz instantly. • Have a 2-bar loop and want the BPM? Enter the loop length in seconds or samples and the number of bars and get the correct BPM for any time signature. • Changing from 440 Hz to 432 Hz? Input both frequencies and get the pitch shift in semitones and the time-stretch percentage. • Song duration from BPM and bars? Enter BPM and bar count, total time is calculated. • Working in 6/8? Input your metronome tempo to get the DAW’s BPM. • Total time of multiple songs? Add all times and get the sum. • Need to know disk space for a 75-minute multitrack? Enter the time, set your sample rate, bit depth, and channel count; your file size is calculated. ### Features: • Clean, minimalist UI with dark mode • Copy any result and reuse it as new input. • Tap tempo input for fast and accurate BPM entry • Supports irregular, simple, and compound time signatures • Accurate 64-bit floating-point calculations • Share an image of your calculation • Built-in support for 9 standard frame rates • Frequency -> MIDI note conversion • File size calculations based on duration and audio specs • Customizable: sample rate, bit depth, channel count, time signature, tuning and frame rate • Collapsible results for a clean overview ### The Studio Calculator is your perfect assistant. Give it the values you have, and it will calculate everything there is to know. More calculations are coming! If you’re missing a calculation, let us know, your feedback is much appreciated.

About

NinetyPhaser

Features
Read full description

NinetyPhaser is a four-stage analog-style phaser for iPhone and iPad. Use it as a standalone audio app or insert the included AUv3 effect in a compatible host such as GarageBand. A four-stage all-pass network creates focused notches and rounded movement, while input conditioning, nonlinear stages, and a modeled output path add responsive character. Choose a smoother open response or a deeper mode with stronger feedback. FEATURES - Four-stage all-pass phaser - Two circuit-response modes - Speed range from 0.05 to 12 Hz - Equal-power Mix control - Stereo Spread with offset modulation - Instrument and line input modes - Mono-to-mono, mono-to-stereo, and stereo-to-stereo routing - Standalone iOS/iPadOS app - AUv3 audio effect for compatible hosts TRY BEFORE UNLOCKING The app provides 10 minutes of full-featured active use, shared between the standalone app and AUv3 extension. Demo time advances only while audio is actively processing. A one-time, non-consumable In-App Purchase unlocks unlimited use in both formats. Restore Purchases is available in the standalone app. NinetyPhaser works on electric piano, pads, synthesizers, guitar, bass, and other sources that benefit from subtle motion or a pronounced sweep.

Screenshots

Studio Calculator4 screens
NinetyPhaser2 screens

Verdict

The call

The clearest difference is price: NinetyPhaser at Free against Studio Calculator's $1.99. Studio Calculator's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement 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

NinetyPhaser is free to download; Studio Calculator costs $1.99 up front. NinetyPhaser sells 1 one-off in-app purchase. Studio Calculator asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Studio Calculator versus NinetyPhaser: the parameters behind the verdict, then further details
ParameterStudio CalculatorNinetyPhaser
Price$1.99Free — better
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 5 weeks—
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size3 MB46 MB
Age rating4+4+
DeveloperThe RedHouse AppsShoma Kondo

In-app purchases

None

Studio Calculator

No in-app purchases

1 purchases

NinetyPhaser

One-time1
  • NinetyPhaser Full Version$6.99

Questions

Is Studio Calculator free?
Studio Calculator costs $1.99, with no in-app purchases.
Is NinetyPhaser free?
NinetyPhaser is free to download, with in-app purchases available.
Do Studio Calculator or NinetyPhaser have ads?
Neither Studio Calculator nor NinetyPhaser shows ads.

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