Onchan vs ボイボTTS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Onchan
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Onchan is a simple and user-friendly video and music player app.
ボイボTTS
This app uses on-device voice synthesis to read text aloud with a wide selection of voices. Save and share generated audio files, and set alarms to have text read at specific times. It also includes a song feature with a MIDI editor.
- On-device voice synthesis
- 127 voice options
- Save and share audio
- Alarm functionality
- Song feature with MIDI editor
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VOICEVOXの声でテキストを読み上げます。 - 音声合成をオンデバイスで行うため、サーバとの通信を必要とせず、プライバシーが守られます。 - 声は100種類以上から選択できます。 - 生成した音声ファイルを保存して、好きな時に再生・共有することができます。 - アラームで指定した時間に声を読み上げます。 - ソング機能 (MIDIエディター搭載) ※音声合成にかかる時間は、端末の性能や文章量に依存し、数秒から数十秒かかります。 ※作成された音声を利用する際は、各音声ライブラリの規約に従ってください。 - 利用規約: https://shinagawa.app/voicevox-tts/terms-and-conditions/ - プライバシーポリシー: https://shinagawa.app/voicevox-tts/privacy-policy/
Screenshots
Verdict
The clearest difference is in-app purchases: Onchan at none against ボイボTTS's 1. Onchan also leads on ads (none vs shown). ボイボTTS's advantage is update cadence (every 3 weeks vs every 12 months). On price, device support and iOS requirement 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. ボイボTTS sells 1 in-app purchase, starting at $2.99 per month. Onchan asks for nothing beyond the download.
Onchan ships an update every 12 months, ボイボTTS every 3 weeks. Both last shipped on September 10, 2026.
| Parameter | Onchan | ボイボTTS |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 12 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 120 MB |
| Age rating | 4+ | 17+ |
| Developer | Shuhei Takezawa | Kazuhiro.Yamada |
In-app purchases
Onchan
No in-app purchases
ボイボTTS
- premium (monthly)$2.991 Month
