Comparison

Submerge vs Gradatone

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

Head to head
About

Submerge

Discover a world of underground music with curated radio stations featuring indie, electronic, hip-hop, and experimental genres. Enjoy seamless streaming on the go with Apple CarPlay and AirPlay support, and stay updated with smart notifications for new releases and events.

Highlights
  • Curated underground music stations
  • Apple CarPlay support
  • AirPlay streaming
  • Smart notifications for new tracks
  • Real-time listener interaction
  • Dark mode and minimal UI
Features
Read full description

Submerge – Underground Music Radio Go deeper than the mainstream. Submerge connects you with a world of underground music radio stations, streaming the freshest indie, electronic, hip-hop, and experimental sounds from across the globe. Features: Stream Curated Stations: Handpicked underground stations featuring emerging artists and niche genres. Apple CarPlay Support: Take your listening experience on the road with a seamless CarPlay interface. Now with AirPlay: Stream directly to your favorite speakers, Apple TV, and AirPlay-compatible devices. Smart Notifications: Be the first to know when new tracks drop or special events go live—tailored to your listening tastes. Interact in real time with listeners from around the globe. Dark Mode & Minimal UI: Designed for distraction-free listening, day or night. Whether you're discovering new sounds or following your favorite underground scenes, Submerge puts the culture at your fingertips.

About

Gradatone

Features
Read full description

Gradatone is a seamless pitch instrument: swipe the screen and hear pitch move smoothly—named for the gradient of sound. Play with nuance keyboards cannot easily offer—vocal-like vibrato and string-like glissandos. Layer timbres for rich harmony, or turn on Snap to pull pitch gently toward a scale. Choose from major, minor, Okinawan and Miyako modes, Chinese pentatonic, Indian (raga), Arabic, blues, and more. Labels include English, kana, and Indian note names (Sa/Pa). No account, ads, in-app purchases, or tracking. Settings stay on your device only. On iOS, you can play even when the Ring/Silent switch is on (use the device volume buttons).

Screenshots

Submerge4 screens
Gradatone3 screens

Verdict

The call

Submerge and Gradatone are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

ScorecardNo meaningful differences
Submerge versus Gradatone: the parameters behind the verdict, then further details
ParameterSubmergeGradatone
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 5 monthsEvery 5 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size29 MB6 MB
Age rating9+4+
DeveloperSubmerge, Limited Liability CompanyTOMIHIDE OTA

In-app purchases

None

Submerge

No in-app purchases

None

Gradatone

No in-app purchases

Questions

Is Submerge free?
Submerge is free to download, with no in-app purchases.
Is Gradatone free?
Gradatone is free to download, with no in-app purchases.
Do Submerge or Gradatone have ads?
Neither Submerge nor Gradatone shows ads.
Which is updated more often, Submerge or Gradatone?
Submerge ships an update every 5 months, and Gradatone every 5 months. Most recently, Submerge was updated on November 3, 2026 and Gradatone on October 31, 2026.

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