Comparison

ToneTTS Local Speech Generator vs RottenPDF

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

Head to head
About

ToneTTS Local Speech Generator

Features
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ToneTTS is an offline app to create speech from text. Paste or type your content, choose a voice and language and it will be read aloud. Everything runs locally using on-device models for unlimited creations, your content never leaves your phone. VOICES & LANGUAGES - 10+ different voice styles - 30+ supported languages including English, Korean, Japanese, Italian, French, Czech, Danish, German, Greek, Spanish, Estonian, Finnish, and more - Adjustable playback speed - Quality slider: higher values produce better audio but take longer to generate EDIT & BUILD DIALOGUES - Split long content into individual sections - Mix voices across sections to create dialogue scenes or multi-speaker narrations - Add, edit or remove sections: full control! ORGANIZE YOUR CONTENT - Group audio items into named Collections (e.g. Meditation, Podcasts, Study Notes) - Collections display a text preview and item count at a glance - Add cover images to collections - Share generated audio files PRIVACY All processing happens on-device. No account required. No data sent to external servers. QUALITY Some languages might perform better than others. Try ToneTTS and if you like it, unlock all functionalities with a single lifetime purchase. Terms and Privacy: https://latentlake.com/termspolicy/tonetts-policy-terms

About

RottenPDF

Features
Read full description

RottenPDF reads your documents out loud and shows the words while it speaks them: the current sentence large and centred, each word lighting up exactly as it is pronounced, the lines around it dimmed. You follow with your ears and your eyes at once. Reading and listening are free, paid for by ads. If you would rather not see them, RottenPDF Plus is an optional monthly subscription that removes them. No account to create. YOUR DOCUMENTS STAY ON YOUR IPHONE Your documents are never uploaded anywhere. They are opened, turned into speech and read aloud on the device, with the voices already installed on it. We run no server and no cloud, so there is nowhere for them to go. Reading works in airplane mode. The app goes online for two things only: to download a web page when you paste its link, and to show ads. ADS NEVER INTERRUPT THE READING Ads are what pays for the app, and they stay out of the way: a banner at the bottom of the library and under the player controls, and now and then a full-screen ad before a document opens or after you have closed it. Never while something is being read to you. Ads are served by Google AdMob, and you decide whether they may be personalised. WHAT IT DOES • Opens PDF, DOCX, RTF and TXT files, from Files, Mail, or any app that can share a document • Reads web pages too: paste a link and it reads the article • Reads any text you copied: paste it in the library and it is read like a document • Reads them aloud with the voices already installed on your device • Karaoke subtitles: the word being spoken is highlighted in real time, with a scale pop and a saturated colour • Speed from 0.5x to 3.0x with the pitch preserved — fast, without the chipmunk voice • Tables, figures, code and formulas are read too, and shown in views built for them • Picks up where you stopped, in every document • Interface in twelve languages, and it reads in every language your device has a voice for WHAT IT DOES NOT DO YET Being straight about this is cheaper than a bad review: • Scanned PDFs — pages that are only images — are not read yet. The app tells you the document is a scan instead of reading you nothing. • EPUB is not supported yet. • Playback stops when you leave the app. Background listening is next. WHO IT IS FOR Anyone who reads a lot and would rather listen. Students with a stack of course notes, anyone with a long report to get through, people who take text in faster by ear, and anyone who finds a wall of text easier to follow when the words move. ROTTENPDF PLUS An optional subscription that removes every ad — the banners and the full-screen ones — and changes nothing else: no feature is reserved for subscribers. It is billed monthly and renews automatically until you cancel. The price is shown in the app before you subscribe, and you can cancel at any time from your App Store account. Payment is handled by Apple: we never see your payment details. NOTHING IS LOCKED Every feature works without paying: no trial that expires, no feature behind a paywall, no account. The ads are what keeps it that way, and Plus is only for those who would rather pay than see them. RottenPDF itself collects nothing about you or your documents; the ad provider collects what its own policy describes, within the choices you make. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://fedeinfe.github.io/rottenpdf-privacy/

Screenshots

ToneTTS Local Speech Generator4 screens
RottenPDF4 screens

Verdict

The call

The clearest difference is ads: ToneTTS Local Speech Generator at none against RottenPDF's shown. ToneTTS Local Speech Generator also leads on update cadence (every 8 days vs every 3 weeks). RottenPDF's advantage is iOS requirement (18.0 vs 26.0). On price, 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. ToneTTS Local Speech Generator sells 4 one-off in-app purchases and RottenPDF sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

ToneTTS Local Speech Generator ships an update every 8 days, RottenPDF every 3 weeks. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard3 real differences Ā· 3 level
ToneTTS Local Speech Generator versus RottenPDF: the parameters behind the verdict, then further details
ParameterToneTTS Local Speech GeneratorRottenPDF
PriceFreeFree
Update frequencyEvery 8 days — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS26.018.0 — better
Further details — not scored
Size211 MB12 MB
Age rating9+4+
DeveloperEmanuele DelirioFederico Infelici

In-app purchases

4 purchases

ToneTTS Local Speech Generator

One-time4
  • Full Access$2.99
  • F Voice Pack$3.99
  • M Voice Pack$3.99
Show 1 more
  • All Premium Voices$5.99
1 purchases

RottenPDF

Subscriptions1
  • RottenPDF Plus$1.991 Month

Questions

Is ToneTTS Local Speech Generator free?
ToneTTS Local Speech Generator is free to download, with in-app purchases available.
Is RottenPDF free?
RottenPDF is free to download, with in-app purchases available.
Do ToneTTS Local Speech Generator or RottenPDF have ads?
RottenPDF shows ads; ToneTTS Local Speech Generator does not.
Which is updated more often, ToneTTS Local Speech Generator or RottenPDF?
ToneTTS Local Speech Generator ships an update every 8 days, and RottenPDF every 3 weeks. Most recently, ToneTTS Local Speech Generator was updated on November 2, 2026 and RottenPDF on November 6, 2026.

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