Comparison

Ratio Calculation vs RetroNoise

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

Head to head
About

Ratio Calculation

Features
Read full description

You can calculate various ratios with this one application. You can calculate the ratio, calculate the golden ratio, calculate the silver ratio. In addition, it can be reused remembers a set of ratio.

About

RetroNoise

Features
Read full description

In today's fast-paced world, we long for a slice of peace, a quiet corner where we can focus and relax. RetroNoise, your personal white noise app, brings you the perfect blend of vintage charm and modern tranquility. Immersive Retro Player We've meticulously crafted a skeuomorphic player interface that transports you back to the golden age of cassette tapes and vinyl records. Every play, pause, and skip is accompanied by unique retro sound effects and animations, making each interaction a ritualistic and delightful experience. Your Personal Sound Mixer The core of RetroNoise lies in its diverse sound combinations. You can freely mix and match over 100 high-quality sounds, from the gentle patter of rain on a window to the crackling of a fireplace, or even the deep hum of a cosmic wormhole. Whether you need a focused library ambiance for work or a relaxing beach scene with crashing waves, you can easily create and save your perfect soundscapes. Boost Focus, Banish Distractions RetroNoise's white noise is expertly designed to effectively mask distracting ambient sounds, creating a stable auditory environment. It helps you increase your focus, allowing you to work, study, and meditate more efficiently. The Perfect Companion for Reading On your literary journey, RetroNoise is your most loyal companion. Choose your favorite white noise to add a layer of calm and immersion to your reading time. Whether you're getting lost in a sci-fi novel or finding answers in a philosophy book, it helps you deeply immerse yourself in your reading. A New Aesthetic for Your Desk RetroNoise is more than just a functional app; it's an expression of a lifestyle. Its distinctive retro interface design can seamlessly blend into your workspace, becoming a stylish part of your desk setup. RetroNoise, the app that helps you slow down, enjoy the moment, and reclaim your focus and tranquility. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Ratio Calculation1 screens
RetroNoise3 screens

Verdict

The call

The clearest difference is in-app purchases: Ratio Calculation at none against RetroNoise's 2. Ratio Calculation also leads on device support (3 vs 1). RetroNoise's advantage is ads (none vs shown) and update cadence (every 3 days vs every 5 months). On price and iOS requirement there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. RetroNoise sells 2 in-app purchases, starting at $0.99 per month. Ratio Calculation asks for nothing beyond the download.

UpkeepUpdate frequency

Ratio Calculation ships an update every 5 months, RetroNoise every 3 days. The most recent releases landed on September 26, 2026 and October 4, 2026 respectively.

Scorecard4 real differences ยท 2 level
Ratio Calculation versus RetroNoise: the parameters behind the verdict, then further details
ParameterRatio CalculationRetroNoise
PriceFreeFree
Update frequencyEvery 5 monthsEvery 3 days โ€” better
AdsYesNo โ€” better
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS15.0 โ€” better16.6
Further details โ€” not scored
Size4 MB20 MB
Age rating4+4+
DeveloperTomohiko Akamine้žๅ‡ก ๅธธ

In-app purchases

None

Ratio Calculation

No in-app purchases

2 purchases

RetroNoise

Subscriptions2
  • Premium Subscription Monthly$0.991 Month
  • Premium Subscription Yearly7 Days trial$7.991 Year

Questions

Is Ratio Calculation free?
Ratio Calculation is free to download, with no in-app purchases.
Is RetroNoise free?
RetroNoise is free to download, with in-app purchases available.
Do Ratio Calculation or RetroNoise have ads?
Ratio Calculation shows ads; RetroNoise does not.
Which is updated more often, Ratio Calculation or RetroNoise?
Ratio Calculation ships an update every 5 months, and RetroNoise every 3 days. Most recently, Ratio Calculation was updated on September 26, 2026 and RetroNoise on October 4, 2026.

Other comparisons