RSVP Reader locks your PDFs. Flincth opens them for free.

RSVP Reader, listed on the App Store as Speed Reader: RSVP Reader, keeps PDF and document import for its paid plans, sold by the week, month or year, or for $119 for life. Flincth Speed Reader opens EPUB, PDF and DOCX on the free download, reads them in words, phrases or sentences, and unlocks Pro with one purchase.

RSVP Reader: one word at a time.

Words appear one at a time at your chosen speed, with a scrolling Cruise Mode in Pro. Importing PDFs and documents is a Pro feature, and Pro is a subscription or a $119 lifetime purchase.

Flincth: a word, a phrase or a sentence.

Read one word at a time, or let Flincth group words into phrases and short sentences at punctuation, so the text still makes sense at speed. Pause, and the whole paragraph is there.

Illustrative diagrams, not app screenshots.

Your files, without a plan.

Both apps read in a fixed spot and ask for no account. Flincth opens your documents for free and charges once for the extras.

FeatureFlincthRSVP Reader
Open PDFs and documents for freeYes. Every format on the free downloadNo. PDF and document import is Pro
Phrase and sentence modesYes. Word, phrase or short sentenceNo. One word at a time, or scrolling text
Own it for lessYes. Pro is a one-time purchaseNo. Weekly, monthly or yearly plans; lifetime costs $119
EPUB booksYes. EPUB 2 and 3, with chapters as sectionsYes. EPUB, according to its website
iPhone and iPad in stepYes. With Pro, through your own iCloudNo. Not mentioned in its listing
No accountYes. No account or sign-inYes. No account required
Web pages and camera scansNo. Share or paste text insteadYes. Enter a URL or scan with the camera
Collects no dataNo. Usage analytics, opt-in in the EU, UK and Switzerland; never your documentsYes. Its label says Data Not Collected
RSVP Reader Pro for one year, from$19.99
Flincth Pro, once, for good$9.99

Speed Reader: RSVP Reader is free with Pro plans: weekly from $4.99, monthly $4.99, yearly from $19.99 to $39.99, and a $119.00 lifetime purchase. Privacy entries are from each app’s App Store label, which the developer provides. US App Store prices, checked on 7 November 2026.

Why readers move to Flincth.

A speed reader that charges before it opens your PDF asks you to pay before you know it works for you. Flincth lets you read your own files first.

Phrases that keep their meaning

Word, phrase and sentence modes split text at punctuation, add natural pauses and give long words a little more time, so you go faster without losing the thread.

Pay once, or not at all

The free download has every reading mode and format. Pro is a single purchase with Family Sharing, and its 7-day trial asks for no payment and never turns into a charge.

What you read stays yours

No account and no AI. Documents are processed on your iPhone or iPad and never sent to Flincth; with Pro sync on, they travel only to your own iCloud.

Never lose your place

Pause to see the whole paragraph and tap any sentence to carry on from there. Each document opens where you stopped, a few words back.

Want to load a web page by its address or scan a printed page? RSVP Reader does that. Flincth is built for reading your own documents in phrases that make sense, paid for once.

Good questions.

Is Flincth Speed Reader an RSVP Reader alternative?+

Yes. Both show text in a fixed spot at the speed you set. Flincth opens PDF, EPUB, DOCX, TXT, RTF and Markdown on the free download, adds phrase and sentence modes, and Pro is a one-time purchase.

Can I try Pro before buying?+

Yes. Start the 7-day Pro trial in the app. It asks for no payment details and simply ends; buy Pro only if you want to keep it.

Can Flincth Speed Reader open Kindle or Apple Books purchases?+

No. Those books are protected with DRM, which the app cannot open. It reads DRM-free EPUB, PDF with a text layer, DOCX, TXT, RTF and Markdown, plus pasted text. Scanned PDFs without a text layer are not supported.

What do I get without paying?+

Every reading mode and every format, light and dark themes, a dyslexia-friendly font and all accessibility settings. The free plan has a daily reading time, a few saved documents and a speed cap; Pro removes them with one purchase.

Does the trial turn into a subscription?+

No. There is no subscription at all. The 7-day Pro trial is started by you, asks for no payment details and simply ends; Pro is a separate one-time purchase.

Flincth Speed Reader app icon

Read your next book faster.

Your own documents, a word, a phrase or a sentence at a time.

iPhone and iPad · iOS 17 or later · No subscription