ボイボTTS vs Accord4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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/
Accord4
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ACCORD4 is a simple yet deep puzzle game where you press four buttons to align numbers. While the concept seems easy, the game is full of hidden complexity. Every time you press a button, the numbers change based on various rules, sometimes affecting multiple buttons. The game offers a wide range of difficulty levels, from beginner-friendly to extremely challenging, providing endless mental stimulation. With no time limits, ACCORD4 is perfect for quick gaming sessions during your breaks or while multitasking. On top of that, there’s a global ranking system that lets you see how your skills measure up against players around the world. Test your puzzle-solving abilities, discover the hidden patterns, and see how far you can go. Whether you’re looking for a casual game to pass the time or a mind-bending challenge, ACCORD4 delivers. Download it today and start competing for a place in the world rankings!
Screenshots
Verdict
The clearest difference is in-app purchases: Accord4 at none against ボイボTTS's 1. Accord4 also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). 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. Accord4 asks for nothing beyond the download.
ボイボTTS ships an update every 3 weeks, Accord4 every 2 days. The most recent releases landed on September 10, 2026 and October 10, 2026 respectively.
| Parameter | ボイボTTS | Accord4 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.5 — better |
| Further details — not scored | ||
| Size | 120 MB | 46 MB |
| Age rating | 17+ | 4+ |
| Developer | Kazuhiro.Yamada | Syuzou Hashimoto |
In-app purchases
ボイボTTS
- premium (monthly)$2.991 Month
Accord4
No in-app purchases
