Local TTS vs Nagara 読み上げ
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Local TTS
This app converts text into lifelike speech using on-device processing. It supports various file formats, including PDFs and Word documents, and allows scanning printed pages. Enjoy offline playback with customizable voices and background audio controls.
- 100% offline text-to-speech
- Import PDF, EPUB, Word, TXT, Markdown
- Scan printed pages with camera (OCR)
- Background playback with lock screen controls
- iCloud sync across devices
- Adjustable playback speed
- Word-by-word highlighting
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Local TTS turns any text into natural speech with 38 neural voices, powered by the open-source Kokoro-82M and Supertonic 3 engines — 100% offline, right on your iPhone or iPad. Listen to PDFs, e-books, articles, scans, and notes with no internet, no account, and no tracking. Nothing ever leaves your device. TWO OPEN-SOURCE NEURAL ENGINES • Kokoro-82M: 28 natural American and British English voices • Supertonic 3: multilingual voices that read 31 languages, with automatic language detection • Every voice runs entirely on your device — it even works in airplane mode ALL 31 LANGUAGES English, Spanish, French, German, Italian, Portuguese, Dutch, Russian, Ukrainian, Polish, Czech, Slovak, Slovenian, Croatian, Bulgarian, Romanian, Hungarian, Greek, Swedish, Danish, Finnish, Lithuanian, Latvian, Estonian, Turkish, Arabic, Hindi, Indonesian, Vietnamese, Japanese, and Korean. READ FROM ALMOST ANYTHING • Files: import PDF, EPUB, Word (DOCX), TXT, and Markdown • Paper: scan a printed page with the camera, or read text from a photo — on-device OCR • Everything else: paste text or type your own notes A READING VIEW THAT FOLLOWS ALONG • Word-by-word highlighting synced to the audio • Immersive mode: the toolbar and player tuck away while you listen — or pin the player • Make it yours: choose the reading font and text size • Search inside a document, jump from the PDF table of contents, and pick up right where you left off • Natural delivery: dates, units, and Roman numerals are read the way people actually say them MADE FOR LISTENING • Background playback with lock screen and Control Center controls • Adjustable playback speed • A different voice for each note, plus tags to keep things organized • Private iCloud sync across iPhone and iPad FREE PLAN • One Supertonic 3 multilingual voice that reads all 31 languages • Three premium Kokoro-82M English voices • Read up to 500 characters per note • No account required — and no ads, ever GO PRO — UNLOCK EVERYTHING • Unlimited text: paste or import with no 500-character cap • The full catalog of all 38 neural voices • Export speech as M4A audio files to play anywhere, on any device • Full multi-page PDF import • Still 100% offline and private, even with Pro SUPPORTED DEVICES On-device neural speech needs a recent chip, so Local TTS requires: • iPhone 12 or later • iPad (10th generation) or later • iPad Air (4th generation) or later • iPad mini (6th generation) or later • iPad Pro (M1, 2021) or later • iOS / iPadOS 18.6 or later Download Local TTS and turn every screen into your personal narrator. • Contact: support@richsoft.app • Privacy Policy: https://richsoft.app/tts/privacy • Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Nagara 読み上げ
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Web記事・メール・メルマガ・PDF・メモなどの長文テキストを、タップひとつで音声に変換。通勤・家事・運動しながら「耳で読む」ながら聴きオーディオブックアプリです。 完全無料・アカウント登録不要・広告なし。読みたいのに時間がない——そんなテキストを、目と手が離せないときでも耳からインプットできます。 ■ 一度だけ合成、あとは何度でも テキストは端末内で一度だけ音声(.m4a)に変換してキャッシュします。二度目以降は再生成しないので、オフラインでも、何度でも、すぐに聴けます。通信量もかかりません。 ■ たくさんの取り込み方法 ・共有シート(Safari やニュースアプリの「共有」から) ・アクション拡張「Nagaraで聴く」(表示中のページや選択テキストをそのまま) ・テキストを貼り付け/URLを入力 ・テキスト・Markdown・PDF ファイルを開く ・メール・メルマガの丸ごと取り込み(メールの「印刷」からプレビューを共有して「Nagara」を選択) ・ショートカット/App Intents 連携 ■ メルマガ・長文メールに強い Gmail などで届く長いメルマガも、「印刷」からの共有でまるごと音声化。長文は段落単位で安定して合成し、URL や区切り線などの読み上げに不向きなノイズは取り込み時に自動で除去します。PDF の本文抽出も端末内で完結し、外部に送信されません。 ■ 聴きやすい再生 ・シークバーで頭出し・巻き戻し ・再生速度の変更(0.5倍〜3倍) ・読み上げ位置を文単位でハイライト表示(目で追うことも) ・バックグラウンド再生・ロック画面/コントロールセンター操作 ・スリープタイマー ・「続きを聴く」で前回の続きから ■ 端末内で完結・プライバシー重視 音声合成は Apple の読み上げ機能を使い、端末内で処理します。アカウント登録は不要。行動のトラッキングや広告はありません。ユーザーのテキストを収集・送信することもありません(URLから記事本文を取得する場合のみ、その取得のために通信します)。 ■ こんな方に ・積読の記事や「あとで読む」を消化したい ・通勤・通学、家事、運動の時間を学びに変えたい ・目が疲れる/画面を見続けられないときに情報を得たい ・耳で復習・インプットする習慣をつくりたい さあ、読む時間を、聴く時間に。Nagara で今日から“ながら聴き”を始めましょう。 ※ より自然な読み上げには、iOS の「設定 App →アクセシビリティ→読み上げコンテンツ→声」から高品質音声(Enhanced/Premium)のダウンロードをおすすめします。
Screenshots
Verdict
The clearest difference is in-app purchases: Nagara 読み上げ at none against Local TTS's 2. Nagara 読み上げ also leads on update cadence (every 3 days vs weekly). On price, ads, 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. Local TTS sells 2 in-app purchases, starting at $4.99 per month. Nagara 読み上げ asks for nothing beyond the download.
Local TTS ships an update weekly, Nagara 読み上げ every 3 days. The most recent releases landed on October 31, 2026 and October 16, 2026 respectively.
| Parameter | Local TTS | Nagara 読み上げ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (10 ratings) — better | — |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 10 — better | — |
| Update frequency | Weekly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.6 | 18.0 — better |
| Further details — not scored | ||
| Size | 529 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Rich Soft Co., Ltd | Masayuki Yamaji |
In-app purchases
Local TTS
- Local TTS Pro Monthly$4.991 Month
- Local TTS Pro Lifetime$19.99
Nagara 読み上げ
No in-app purchases









