Comparison

Soft Sounds vs Imperial Converter

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

Head to head
About

Soft Sounds

Drift off to sleep with over 1000 high-quality nature sounds from around the world. Create personalized sound mixes for relaxation or sleep, and use the gentle timer to fade out audio. Wake up feeling refreshed and energized.

Highlights
  • Over 1000 high-quality nature sounds
  • Personalized sound mixes (up to 5 sounds)
  • Sleep timer with fade-out
  • High-definition imagery
  • Background playback
  • Modern, easy-to-use interface
Features
Read full description

Can’t sleep? Fall asleep fast to over 1000 high-quality recordings from around the world. Sleep deeply every night, and wake up feeling fresh and energized. Create your own personalized mixes for sleep, relaxation, travel, study, naps or mediation, blending up to 5 sounds at a time. Set a timer to gently fade out after you’ve fallen asleep. Explore your own beautiful library of high-resolution natural sounds, individually selected for their quality. Fall asleep to gentle showers and rolling thunderstorms in the world’s forests, countryside, and cities. Relax to the quiet drumming of rain on tents, umbrellas, roofs, temples, skylights and more. Add a gentle stream or soothing waterfall and drift off to deep sleep. Choose from over 1000 high-quality sounds, including: • Rainstorms in Amsterdam, Bali, California, England, Finland, Germany, Italy, North Carolina, Oregon, Paris, Scotland, Spain, Sweden, Toronto, Wales, Washington... and more! • Thunderstorms in Australia, Arizona, Chicago, Cologne, Finland, Italy, Germany, Missouri, the Netherlands, New England, Germany, Oregon, Toronto, Wales… and more! • Streams, Rivers and Waterfalls from Mt. St. Helens, Scotland, Swiss glaciers, Sydney… and more! • Rain falling on tents, umbrellas, roofs, skylights, windshields, greenhouses, temples... and more! • Heavy rainstorms, Blizzards, Hailstorms… and more! With over 1000 soothing sounds to choose from, you’ll fall asleep fast and wake up feeling refreshed and rejuvenated. Improve your sleep, your health, and your sense of well-being starting tonight. Soft Sounds Features: • Over 1000 natural sounds recorded on location around the world • Long high-quality 100% stereo recordings • Easy-to-create blended mixes of any 5 sounds • Sleep timer with slow audio fade-out, settable with a simple tap • Beautiful high-definition images from around the globe • Modern easy-to-use interface, tailored for nighttime use • Runs in background while using other apps or when the screen is locked Download Soft Sounds now to start sleeping better tonight.

About

Imperial Converter

Features
Read full description

This app converts imperial and metric units quickly and clearly. Length and weight are calculated instantly as you type, without switching screens or modes. Supports miles, kilometers, feet, inches, yards, kilograms, pounds, ounces, stones and tons. Interface is simple, offline, and available in multiple languages including Chinese (Traditional).

Screenshots

Soft Sounds4 screens
Imperial Converter4 screens

Verdict

The call

The clearest difference is price: Soft Sounds at Free against Imperial Converter's $1.00. Soft Sounds also leads on iOS requirement (8.0 vs 17.6). Imperial Converter's advantage is in-app purchases (none vs 1) and update cadence (every 2 days vs every 18 months). On 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

Soft Sounds is free to download; Imperial Converter costs $1.00 up front. Soft Sounds sells 1 one-off in-app purchase. Imperial Converter asks for nothing beyond the download.

UpkeepUpdate frequency

Soft Sounds ships an update every 18 months, Imperial Converter every 2 days. The most recent releases landed on November 3, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
Soft Sounds versus Imperial Converter: the parameters behind the verdict, then further details
ParameterSoft SoundsImperial Converter
PriceFree — better$1.00
Rating5.0 (1 ratings) — better—
Positive reviews71.4% of reviews—
Number of ratings1 — better—
Update frequencyEvery 18 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS8.0 — better17.6
Further details — not scored
Size30 MB1 MB
Age rating4+4+
Developer星宇 罗Aleksandr Skorniakov

In-app purchases

1 purchases

Soft Sounds

One-time1
  • Unlock all default sounds$2.99
None

Imperial Converter

No in-app purchases

Questions

Is Soft Sounds free?
Soft Sounds is free to download, with in-app purchases available.
Is Imperial Converter free?
Imperial Converter costs $1.00, with no in-app purchases.
Do Soft Sounds or Imperial Converter have ads?
Neither Soft Sounds nor Imperial Converter shows ads.
Which is updated more often, Soft Sounds or Imperial Converter?
Soft Sounds ships an update every 18 months, and Imperial Converter every 2 days. Most recently, Soft Sounds was updated on November 3, 2026 and Imperial Converter on October 28, 2026.

Other comparisons