isuniYe OTC vs Tone Generator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
isuniYe OTC
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This application facilitates following - Connect with iSuniye devices - Set Gain - Set Clarity - Set Equalisers - Save all the above settings permanently on iSuniye devices - Configure wind noise settings - Enable ANSI Test mode - Reset Frequencies to original - And few enhancements
Tone Generator
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Whether you're testing your speakers, fine-tuning instruments, exploring frequencies for tinnitus relief, or just curious about sound - Frequency Generator is the tool you need. Generate Pure Sound Waves Easily create sine waves in a frequency range from 1 Hz to 22,000 Hz. Frequency Generator delivers accurate tones and a clean interface, perfect for anyone from audio engineers to curious beginners. FEATURES: - Precise Frequency Control Drag to adjust the frequency or use configurable + / – step buttons for fine-tuning. - Manual Input Enter a specific frequency to jump straight to the sound you want. - Built-in Timer Play a sound for a set duration - great for testing or focused listening. - Background Playback Keep the frequency running while using other apps or when your screen is locked. Perfect For: - Speaker and headphone testing - Hearing range testing (typically 20 Hz to 20 kHz) - Finding your tinnitus tone - Sound therapy and relaxation - General sound exploration and education Upgrade to Premium for more control: - Set timers for automated playback - Save your own presets for quick access - Unlock all built-in presets for even more convenience Terms of service: https://mariolistudio.hr/apps/terms.html
Screenshots
Verdict
The clearest difference is in-app purchases: isuniYe OTC at none against Tone Generator's 1. isuniYe OTC also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.5). Tone Generator's advantage is update cadence (every 5 months vs every 14 months). On price and ads 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
Both are free to download. Tone Generator sells 1 one-off in-app purchase. isuniYe OTC asks for nothing beyond the download.
isuniYe OTC ships an update every 14 months, Tone Generator every 5 months. The most recent releases landed on October 6, 2026 and October 10, 2026 respectively.
| Parameter | isuniYe OTC | Tone Generator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 14 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 35 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | iSuniye LLC | IVANA RAST |
In-app purchases
isuniYe OTC
No in-app purchases
Tone Generator
- Frequency Generator Premium$6.99
Questions
Is isuniYe OTC free?
Is Tone Generator free?
Do isuniYe OTC or Tone Generator have ads?
Which is updated more often, isuniYe OTC or Tone Generator?
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