Comparison

unforgettable vs Listen 2 Reader

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

Head to head
About

unforgettable

This app helps you retain information from non-fiction books by creating intelligent flashcards from key messages. It supports over 1700 books and uses a spaced repetition system to combat the forgetting curve. Access to all features requires a paid subscription.

Highlights
  • Intelligent flashcard creation
  • Spaced repetition system
  • Supports 1700+ non-fiction books
  • Track key messages from books
  • Review using flashcards
Features
Read full description

Most people spend hours reading books only to forget most of it. Use our intelligent cards and repeat the key messages of your favorite non-fiction books. With over 1700+ nonfiction books, we got you covered. How it works 1. Add the books you have read 2. Select the key messages 3. Repeat the flashcards App requires mandatory paid subscription to access all our features Please visit and read the following LICENSED APPLICATION END USER LICENSE AGREEMENT https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Listen 2 Reader

This app converts text to natural-sounding speech using on-device neural TTS engines. It supports various document formats and offers advanced voice tuning and word-level highlighting for an immersive reading experience without cloud reliance or subscriptions.

Highlights
  • On-device neural text-to-speech
  • 100+ voices in 13 languages
  • Voice tuning and presets
  • Import PDF, EPUB, DOCX, and more
  • Word-by-word highlighting
  • AI figure descriptions
  • True offline privacy
Features
Read full description

Listen2 runs neural text-to-speech directly on your iPhone or iPad without connecting to cloud services. No subscription or accounts — just a 7 day free trial and then a one-time purchase. Most text-to-speech apps either use the tried and true system voices or require monthly payments for cloud processing. Listen2 runs neural voice models locally using your iOS device's CPU and Apple Neural Engine, giving you natural-sounding speech without ongoing costs or privacy tradeoffs. WHAT MAKES LISTEN2 DIFFERENT Multi-Voice Engines, One App Piper provides reliable neural voices across 13 languages. Supertonic offers a fresh take on a voice engine — flow-matching models running on Apple's Neural Engine via CoreML for natural rhythm and expressive speech. Choose from 100+ voices in English, Spanish, French, German, Italian, Portuguese, Russian, Turkish, Greek, Hindi, Vietnamese, Swedish and Hungarian. More coming. Voice Tuning Adjust the model parameters of any voice to suit your preferences. Save presets to switch between profiles. Preview pronunciation rules before saving them. Import Anything PDF, EPUB, DOCX, DAISY, markdown, plain text, clipboard, or web articles. Share from Safari and Listen2 extracts the article text. Paywalled content works (even sites on which other major TTS apps fail) when shared from a browser where you are logged in. Machine Learning Word Sync CTC forced alignment matches audio to text at the word level. Watch each word highlight as it is spoken — across Latin and non-Latin scripts alike. Highlighting engine newly re-build to be lean and efficient that's dramatically easier on your battery life. Smart Document Reading Multi-column layout handling, footnote filtering (for PDF files), hyphenated word rejoining. AI Vision for scanned PDFs. Full EPUB, DOCX, and DAISY support. Figure Descriptions On-device AI vision generates spoken descriptions of figures, charts, and photos as you listen. For non-English documents, descriptions translate automatically via Apple's on-device Translation framework. (Works with EPUB and PDF as a first roll-out) Pronunciation Rules Fix how any word is spoken without changing display text. Rules for names, terms, or abbreviations. Live preview before saving. Built-in presets for footnote markers. Global or per-document. Doesn't break highlighting. True Offline Privacy Processing, normalization, and synthesis all happen on-device. Documents never leave your phone. No uploads, account, or tracking. FEATURES - 100+ neural voices across 13 languages, plus dozens of Apple system voices - 3+ engines: Piper (broad language support), Supertonic (high-fidelity CoreML, flow-matching models), and Kokoro. Apple system voices offer efficient, quality options if using enhanced or premium models. - Voice tuning with saveable presets - Word-by-word or sentence highlighting - PDF, EPUB, DOCX, DAISY, TXT, Markdown support - AI figure descriptions with auto-translation (PDF and EPUB support) - Collections with intros, cover art, and auto-advance - Web Article Collections — batch articles into an auto-playing queue - Clipboard import and Siri shortcut support - 0.5x to 2.5x playback speed (Kokoro supports up to 1.4x because of real-time constraint) - Background playback with lock screen controls - Import from Files, links, Share Extension, or other apps - Export any document as a plain-text file from the library - Pronunciation rules with live preview - Atkinson Hyperlegible and OpenDyslexic fonts - Full VoiceOver support with rotor navigation and Magic Tap - Elapsed and remaining time in now playing & reader view. WHO IT'S FOR - Commuters turning drive time into learning time - Students reviewing papers and textbooks - Professionals handling confidential documents privately - VoiceOver users looking for a fully accessible TTS reader - Readers with dyslexia who benefit from audio-visual sync - Anyone tired of TTS subscriptions One-time purchase. 7-day free trial. No subscriptions.

Screenshots

unforgettable4 screens
Listen 2 Reader4 screens

Verdict

The call

The clearest difference is monetization model: Listen 2 Reader at free with in-app purchases against unforgettable's subscription. Listen 2 Reader also leads on update cadence (every 10 days vs every 2 months) and ratings volume (13 vs 1). unforgettable's advantage is rating (5.0 vs 4.8) and iOS requirement (11.0 vs 18.2). On price, review sentiment, ads and in-app purchases 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

Both are free to download. unforgettable sells 2 in-app purchases, starting at $16.00 per month and Listen 2 Reader sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

unforgettable holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Listen 2 Reader has 13 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

unforgettable ships an update every 2 months, Listen 2 Reader every 10 days. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
unforgettable versus Listen 2 Reader: the parameters behind the verdict, then further details
ParameterunforgettableListen 2 Reader
PriceFreeFree
Rating5.0 (1 ratings) — better4.8 (13 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings113 — better
Update frequencyEvery 2 monthsEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscriptionFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better18.2
Further details — not scored
Size44 MB185 MB
Age rating4+4+
DeveloperJoshua SpieglerZach Swift

Customer experience

unforgettable

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Listen 2 Reader

All ratings13 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

unforgettable

Subscriptions2
  • Unlimited Monthly Access$16.001 Month
  • Unlimited Yearly Access7 Days trial$96.001 Year
1 purchases

Listen 2 Reader

One-time1
  • Listen2 Full Access$19.99

Questions

Is unforgettable free?
unforgettable is free to download, with in-app purchases available.
Is Listen 2 Reader free?
Listen 2 Reader is free to download, with in-app purchases available.
Which has better reviews, unforgettable or Listen 2 Reader?
unforgettable is rated higher. unforgettable averages 5.0 out of 5 from 1 ratings, while Listen 2 Reader averages 4.8 from 13 ratings.
Do unforgettable or Listen 2 Reader have ads?
Neither unforgettable nor Listen 2 Reader shows ads.
Which is updated more often, unforgettable or Listen 2 Reader?
unforgettable ships an update every 2 months, and Listen 2 Reader every 10 days. Most recently, unforgettable was updated on October 24, 2026 and Listen 2 Reader on October 30, 2026.

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