Comparison

Romi(ロミィ) vs ボイボTTS

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

Head to head
About

Romi(ロミィ)

This companion app facilitates the setup and customization of a conversational AI robot. It offers guidance on engaging with the robot and accessing its various helpful functions, such as weather updates, alarms, and language learning.

Highlights
  • Initial setup and configuration
  • Connection to wireless internet
  • View robot status (e.g., battery)
  • Conversation tips and guides
  • Access to helpful functions
  • English conversation practice
Features
Read full description

Romiアプリは、会話AIロボットRomiの初期設定・設定変更と、Romiと楽しくお話するヒントがわかる専用アプリです。 Romiは株式会社MIXIが開発したコミュニケーションロボットです。 数億件の日本語データを学習した自律会話型の独自開発AIを搭載しており、様々な日常シーンで楽しくおしゃべりができます。 天気予報、目覚まし、タイマー、ニュースなどの便利な機能で生活を可愛くサポートしたり、英会話機能で楽しくスキルアップできます。 ■Romiアプリの主な機能 ・接続設定: Romiと接続して無線インターネットに接続する設定ができます。 ・Romiについて: バッテリー残量など接続しているRomiの情報が見られます。 ・ガイドブック: Romiとの会話のヒントや便利な機能の紹介が見られます。

About

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.

Highlights
  • On-device voice synthesis
  • 127 voice options
  • Save and share audio
  • Alarm functionality
  • Song feature with MIDI editor
Features
Read full description

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

Romi(ロミィ)4 screens
ボイボTTS4 screens

Verdict

The call

The clearest difference is in-app purchases: Romi(ロミィ) at none against ボイボTTS's 1. Romi(ロミィ) also leads on ads (none vs shown) and review sentiment (43% vs 33%). On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ボイボTTS sells 1 in-app purchase, starting at $2.99 per month. Romi(ロミィ) asks for nothing beyond the download.

UpkeepUpdate frequency

Romi(ロミィ) ships an update monthly, ボイボTTS every 3 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard4 real differences · 6 level
Romi(ロミィ) versus ボイボTTS: the parameters behind the verdict, then further details
ParameterRomi(ロミィ)ボイボTTS
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews42.9% of reviews — better33.3% of reviews
Number of ratings—1 — better
Update frequencyMonthlyEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhoneiPhone, iPad — better
Requires iOS17.016.0 — better
Further details — not scored
Size31 MB109 MB
Age rating4+17+
DeveloperMIXI, Inc.Kazuhiro.Yamada

Customer experience

Romi(ロミィ)

Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

ボイボTTS

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive33.3%
Neutral16.7%
Negative50.0%

In-app purchases

None

Romi(ロミィ)

No in-app purchases

1 purchases

ボイボTTS

Subscriptions1
  • premium (monthly)$2.991 Month

Questions

Is Romi(ロミィ) free?
Romi(ロミィ) is free to download, with no in-app purchases.
Is ボイボTTS free?
ボイボTTS is free to download, with in-app purchases available.
Do Romi(ロミィ) or ボイボTTS have ads?
ボイボTTS shows ads; Romi(ロミィ) does not.
Which is updated more often, Romi(ロミィ) or ボイボTTS?
Romi(ロミィ) ships an update monthly, and ボイボTTS every 3 weeks. Most recently, Romi(ロミィ) was updated on November 3, 2026 and ボイボTTS on October 30, 2026.

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