Comparison

OfflineTTS vs TGSpeechBox

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

Head to head
About

OfflineTTS

Features
Read full description

OfflineTTS - Your Ultimate FREE Offline Text-to-Speech Assistant Transform any text into natural, fluent speech completely free, no internet required. Whether you are learning a language, reading long articles, or need accessibility support, FreeOfflineTTS is your perfect companion. --- ## Key Features ### Multi-Language Support Chinese (Mandarin) - 8 premium voices (male and female) American English - 19 natural voice styles British English - 8 authentic UK voices French (Francais) Spanish (Espanol) Italian (Italiano) Portuguese (Portugues) Hindi ### 100% Offline and Private No internet connection needed Zero data usage Your data never leaves your device Complete privacy protection ### Perfect For Audiobooks and Reading - Convert articles, eBooks into audio Language Learning - Practice authentic pronunciation Accessibility - Voice support for visually impaired users Content Creation - Add narration to videos Proofreading - Listen while you edit Creative Projects - Character voices, storytelling ### Powered by Advanced AI Built on Kokoro and Sherpa-onnx open-source engines ONNX Runtime accelerated for optimal performance Natural, human-like voice quality --- ## How It Works 1. Select your target language 2. Choose your preferred voice style 3. Type or paste your text 4. Tap to play and listen instantly --- ## Why Choose OfflineTTS? Totally Free - No subscriptions, no hidden fees Works Offline - No internet connection required Privacy First - Your data stays on your device 8+ Languages - Comprehensive language support 50+ Voices - Huge variety of voice styles --- Download Now and make your text come alive. Let your content be heard!

About

TGSpeechBox

Features
Read full description

TGSpeechBox is a high-quality speech synthesizer that works as a system voice with VoiceOver and as a standalone text-to-speech app. Features: • 26 languages with natural-sounding speech • Full VoiceOver integration — use as your primary system voice • 7 voice presets plus YAML-defined voice profiles • Deep engine tuning: pitch mode, voice tone, formant sharpness, inflection, tremor, breathiness, and more • Phoneme editor: fine-tune individual speech sounds with live preview • Pronunciation dictionary: add custom word pronunciations with IPA override support • Stress, compound, and character dictionaries for advanced control • Export and share your customizations • Adjustable sample rate (11025–44100 Hz) • Rate override and rate boost for VoiceOver • Language lock: keep your preferred language regardless of system setting • Runs entirely on-device — no internet required, no data leaves your phone TGSpeechBox uses a Klatt-style formant synthesis engine with eSpeak-ng for phoneme generation. It is open source under the MIT license. Built by a blind developer, designed for accessibility from day one.

Screenshots

OfflineTTS3 screens
TGSpeechBox2 screens

Verdict

The call

The clearest difference is update cadence: OfflineTTS at every 3 days against TGSpeechBox's weekly. On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

OfflineTTS ships an update every 3 days, TGSpeechBox weekly. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard1 real difference Ā· 5 level
OfflineTTS versus TGSpeechBox: the parameters behind the verdict, then further details
ParameterOfflineTTSTGSpeechBox
PriceFreeFree
Update frequencyEvery 3 days — betterWeekly
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better16.0
Further details — not scored
Size82 MB33 MB
Age rating4+4+
Developerę·±åœ³åø‚åŽŸé„“åˆ›ę–°ē§‘ęŠ€ęœ‰é™å…¬åøTamas Geczy

In-app purchases

None

OfflineTTS

No in-app purchases

None

TGSpeechBox

No in-app purchases

Questions

Is OfflineTTS free?
OfflineTTS is free to download, with no in-app purchases.
Is TGSpeechBox free?
TGSpeechBox is free to download, with no in-app purchases.
Do OfflineTTS or TGSpeechBox have ads?
Neither OfflineTTS nor TGSpeechBox shows ads.
Which is updated more often, OfflineTTS or TGSpeechBox?
OfflineTTS ships an update every 3 days, and TGSpeechBox weekly. Most recently, OfflineTTS was updated on October 30, 2026 and TGSpeechBox on October 31, 2026.

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