Submerge vs Gradatone
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Curated underground music stations
- Apple CarPlay support
- AirPlay streaming
- Smart notifications for new tracks
- Real-time listener interaction
- Dark mode and minimal UI
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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.
Gradatone
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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
Verdict
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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Submerge | Gradatone |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 5 months | Every 5 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 29 MB | 6 MB |
| Age rating | 9+ | 4+ |
| Developer | Submerge, Limited Liability Company | TOMIHIDE OTA |
In-app purchases
Submerge
No in-app purchases
Gradatone
No in-app purchases









