Comparison

ReadOver vs NagiVoice

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

Head to head
About

ReadOver

Features
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ReadOver - Keyboard for Users with Visual Impairments ReadOver is a custom Japanese keyboard extension designed for users with visual impairments. It supports both flick input and toggle input (with split-tap), is fully compatible with VoiceOver, and includes powerful input-assistance features powered by Google Gemini Al. Input Methods Flick Input - A fast, intuitive one-finger input method Toggle Input (with split-tap support) - A reliable input style optimized for VoiceOver users Both input methods are fully optimized for VoiceOver's spoken feedback. Al-Powered Input Assistance Kanji Conversion -
Automatically converts hiragana into appropriate kanji Text Generation — Al-assisted writing and text creation Image Analysis - Recognizes text in photos (OCR) and detects stamps Voice Memos - Converts spoken content into text Learning Features Custom Dictionary - Register and manage personal terms and expressions Usage-Based Learning -
Remembers frequently used kanji conversions and phrases to improve accuracy Privacy & Options Al features are available in both free and paid versions.

About

NagiVoice

Features
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入力した日本語を、自然なAI音声で読み上げ。声クローンにも対応。 音声合成はすべてiPhoneの中で処理。文章も参照音声も外部に送信しません。 モデルを一度ダウンロードすれば、オフラインでも無料で使えます。 ■ できること ・日本語テキストの音声合成(読み上げ) ・マイク録音または音声ファイルによる声クローン ・表情・スタイルの調整(絵文字など) ・生成音声の再生と共有 ・モデルを取得済みなら、合成そのものはオフラインでも実行可能 ■ 端末の中で完結 NagiVoice の推論は端末上で動作します。クラウドに文章を送って声を返すタイプのサービスとは異なり、処理の主体はあなたのデバイスです。初回などにモデルを取得したあとは、ネットワークなしでも合成できます(端末の性能・空き容量によります)。 ■ 声クローンについて 短い参照音声(録音またはファイル)をもとに、話し方に近い音声を合成できます。本人の明示的な同意がある場合にのみ使用してください。なりすましや、誤解を招く用途での利用はおやめください。 ■ こんなときに ・下書きや原稿をその場で聞いて確認したい ・端末内で試せる日本語の声が欲しい ・クラウドに送らず音声を作りたい ・参照音声から声の雰囲気を試したい ■ ご利用の前に ・初回は日本語音声モデル(おおよそ数GB)の取得が必要です ・安定した Wi‑Fi と十分な空き容量を推奨します ・メモリに余裕のある iPhone / iPad での利用を推奨します ・合成音声であることを必要に応じて明示し、法令と利用規約を守ってご利用ください

Screenshots

ReadOver4 screens
NagiVoice3 screens

Verdict

The call

The clearest difference is price: NagiVoice at Free against ReadOver's $2.99. NagiVoice also leads on iOS requirement (17.0 vs 26.0). ReadOver's advantage is update cadence (every 5 days vs every 2 months). On ads, in-app purchases and device support 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

NagiVoice is free to download; ReadOver costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

ReadOver ships an update every 5 days, NagiVoice every 2 months. The most recent releases landed on November 5, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 3 level
ReadOver versus NagiVoice: the parameters behind the verdict, then further details
ParameterReadOverNagiVoice
Price$2.99Free — better
Update frequencyEvery 5 days — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.017.0 — better
Further details — not scored
Size11 MB25 MB
Age rating4+4+
DeveloperSHINYA TAKAGAKIharuto nomura

In-app purchases

None

ReadOver

No in-app purchases

None

NagiVoice

No in-app purchases

Questions

Is ReadOver free?
ReadOver costs $2.99, with no in-app purchases.
Is NagiVoice free?
NagiVoice is free to download, with no in-app purchases.
Do ReadOver or NagiVoice have ads?
Neither ReadOver nor NagiVoice shows ads.
Which is updated more often, ReadOver or NagiVoice?
ReadOver ships an update every 5 days, and NagiVoice every 2 months. Most recently, ReadOver was updated on November 5, 2026 and NagiVoice on November 10, 2026.

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