Comparison

Speed Reader vs undervoice

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

Head to head
About

Speed Reader

Enhance reading speed and comprehension with focused, one-word-at-a-time sessions. Import text from various sources including URLs, PDFs, and screenshots, then adjust your reading pace with visual anchors and adaptive pauses.

Highlights
  • One-word-at-a-time reading
  • Adjustable words per minute
  • Fixed eye anchor and focus options
  • Adaptive pauses for punctuation
  • Built-in browser and article import
  • Image OCR and PDF import
  • Reading statistics and profiles
Features
Read full description

SpeedReader: Juice turns long text into focused one-word reading sessions. Paste text, import a public URL, open an article in the built-in browser, scan a screenshot with on-device OCR, or bring in a PDF, then read at your chosen pace with a fixed visual anchor. The reader is built for quick, repeatable reading sprints: - One-word-at-a-time display with adjustable words per minute - Fixed eye anchor and optional bold/color focus - Adaptive pauses for punctuation and longer words - Built-in browser and favorite sources - Local library, reading stats, and saved profiles - Image OCR and PDF text import Daily reading allowances are clear and visible in Settings. Everyone gets 1,000 words per day free, with optional paid tiers for higher daily limits. SpeedReader processes imported text locally where possible. URL import fetches the public page you choose; the app does not bypass paywalls or send article text to a SpeedReader backend.

About

undervoice

Features
Read full description

undervoice is a quiet speech-to-text and voice-typing app for Mac. Speak softly into your iPhone; what you say in English is transcribed locally on the Mac and inserted at the active cursor in Codex, Claude Code, Xcode, Terminal, a browser, or another text field. It is built for developers and knowledge workers who want the speed of dictation without giving the whole office a performance. Explain a bug, talk through an edge case, or capture a half-formed idea in an AI prompt while it is still fresh—even at a shared desk. WHY USE IPHONE? Your Mac’s built-in microphone may be roughly 20–30 inches from your mouth. Your iPhone can be just 2–4 inches away. That closer starting point gives speech recognition a cleaner signal before keyboard noise, ventilation, and nearby conversations compete with your voice. There is no external microphone to buy, wait for, or set up. HOW IT WORKS 1. Install undervoice on iPhone and Mac. 2. Download the English recognition pack on your Apple Silicon Mac and pair once. 3. Put the cursor where you want the text, hold to talk on iPhone, then release. OPTIMIZED FOR ENGLISH undervoice uses a dedicated English recognition path on Mac. The model, local runtime, and product settings are selected for natural English dictation—from quick instructions to long, detailed coding prompts. English is the language being optimized here, not one item in a generic multilingual feature list. DESIGNED FOR QUIET WORK • Close-range capture for low-volume speech • Local recognition on your paired Mac • A dedicated English recognition path for natural speech and long-form dictation • Direct insertion at the active cursor—no copy and paste • End-to-end encrypted audio, transcripts, and control messages • Audio processed in memory, never saved as recording files • No undervoice speech cloud • Screen Protection uses Dark Mode, lowers brightness to 30%, and softens the recording button while the app is active • A minimal interface that stays out of your coding flow • Optional local transcript history; nothing syncs to an undervoice server PRIVATE BY DESIGN On a local network, audio goes directly from iPhone to the paired Mac, where recognition runs locally. No audio file is left on either device. Password fields and Secure Keyboard Entry are excluded. If focus changes during dictation, insertion stops. REQUIREMENTS Requires iOS 18 or later and macOS 14 or later. Paired iPhone recognition requires an Apple Silicon Mac. Both apps are required. Get the Mac companion and setup guide at undervoice.net/en/download. undervoice is not a chatbot and does not rewrite your ideas. It simply gives your voice a shorter, quieter path into the tools you already use. TERMS: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Speed Reader4 screens
undervoice3 screens

Verdict

The call

Speed Reader and undervoice are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Speed Reader sells 4 one-off in-app purchases and undervoice sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
Speed Reader versus undervoice: the parameters behind the verdict, then further details
ParameterSpeed Readerundervoice
PriceFreeFree
Positive reviews100.0% of reviews—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better18.0
Further details — not scored
Size11 MB19 MB
Age rating4+4+
DeveloperThomas Richardson东景 梁

In-app purchases

4 purchases

Speed Reader

One-time4
  • 2,000 Daily Words$0.39
  • 10,000 Daily Words$0.59
  • 25,000 Daily Words$0.79
Show 1 more
  • Unlimited Daily Words$0.99
1 purchases

undervoice

One-time1
  • Lifetime$59.99

Questions

Is Speed Reader free?
Speed Reader is free to download, with in-app purchases available.
Is undervoice free?
undervoice is free to download, with in-app purchases available.
Do Speed Reader or undervoice have ads?
Neither Speed Reader nor undervoice shows ads.

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