Comparison

utter vs Diction

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

Head to head
About

utter

This AI-powered voice keyboard transforms your speech into polished written text instantly, working across all your favorite apps. It offers advanced speech-to-text capabilities, an AI writing assistant, and a structured editor for efficient content creation.

Highlights
  • AI Voice Keyboard
  • Advanced Speech to Text
  • AI Writing Assistant
  • Structured Editor with Markdown
  • Instant Note Capture
  • Whisper Mode
  • Custom Vocabulary
Features
Read full description

Turn your voice into useful text with Utter. Dictate messages, capture ideas, and transcribe recordings on your iPhone or iPad. WORK WITHOUT INTERNET Turn on Offline Mode in Settings on a compatible iPhone to dictate and rewrite without an internet connection. Download the required models once, then process your words on your device. WRITE WITH YOUR VOICE Use the Utter keyboard in apps that support custom keyboards. Speak naturally, then use AI writing tools to clean up, rewrite, or summarise your text. The keyboard requires Full Access. KEEP YOUR IDEAS TOGETHER Record voice notes, import audio, and search your transcripts. Add your own vocabulary and choose writing modes for different tasks. CHOOSE YOUR MODELS Browse speech and language models, choose defaults, and manage downloads. Use supported on-device models or cloud services, or connect supported providers with your own API key. Availability, languages, live transcription, and speaker labelling depend on the model and device. Cloud models send the content needed for processing to the selected service. START QUICKLY Use widgets, Shortcuts, and the share sheet to bring recording and audio import into your everyday workflow. Some features require Utter Pro or a provider API key. Terms: https://utter.to/terms Privacy: https://utter.to/privacy

About

Diction

This app provides a voice-to-text keyboard that works across all applications. It offers features like tap-to-fix for editing, customizability, and on-device processing for privacy. An optional subscription unlocks advanced cloud models and AI companions for enhanced text generation and editing.

Highlights
  • Speech to text in any app
  • Tap-to-fix smart editing
  • Customizable keyboard layout
  • On-device offline dictation
  • Private voice input
  • Transcription history and search
Features
Read full description

Speech to text keyboard for iPhone. Tap the mic, talk, and watch your words appear in any app. Free to start, private by design, 99 languages. Dictate messages, emails, and notes. Works in any app you type in: Notion, WhatsApp, Slack, and everywhere else. No switching, no copy-pasting. Smart QWERTY keyboard. Autocorrect fixes typos as you type and splits run-together words. Word suggestions appear above the keys. Correct a suggestion back once and Diction stops offering it. Tap-to-fix. Select a word and smart alternatives appear. Spelling fixes, grammar corrections, better phrasing. One tap to accept. Save to My Words. Teach Diction your names and jargon for better accuracy over time. Transcription history with search. Copy, retry, and review past dictations. Failed transcriptions retry automatically so nothing gets lost. The Diction app has zero analytics, zero tracking, and zero data collection. AES-256-GCM encryption. X25519 key exchange. Diction One (paid subscription): highest-accuracy cloud speech models and Writing Tools. Turn natural speech into polished text, edit or rewrite by voice, translate on the fly. Select text and dictate what to change. Free trial included. On-device mode: runs locally on your iPhone with no internet needed. Audio never leaves your device. Self-hosted: run your own speech recognition server. Your network, your data, your models. Pairing is a scan: your server prints a QR code, you point the app at it, and keys rotate themselves after that. Writing Tools works there too, free, because it is your hardware. Open-source server on GitHub. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

utter4 screens
Diction4 screens

Verdict

The call

utter and Diction are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume 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. utter sells 2 in-app purchases, starting at $5.99 per month and Diction sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for utter against 4.9 for Diction. Both are backed by a comparable volume of ratings — 8 and 20 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

ScorecardNo meaningful differences
utter versus Diction: the parameters behind the verdict, then further details
ParameterutterDiction
PriceFreeFree
Rating5.0 (8 ratings) — better4.9 (20 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings820 — better
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhoneiPhone, iPad — better
Requires iOS18.017.0 — better
Further details — not scored
Size184 MB105 MB
Age rating4+4+
DeveloperThird techOndrej Machala

Customer experience

utter

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Diction

All ratings19 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

utter

Subscriptions2
  • Monthly Plan$5.991 Month
  • Utter Pro | Yearly$59.991 Year
2 purchases

Diction

Subscriptions2
  • Diction Cloud$5.991 Month
  • Diction Cloud$59.991 Year

Questions

Is utter free?
utter is free to download, with in-app purchases available.
Is Diction free?
Diction is free to download, with in-app purchases available.
Which has better reviews, utter or Diction?
utter is rated higher. utter averages 5.0 out of 5 from 8 ratings, while Diction averages 4.9 from 20 ratings.
Do utter or Diction have ads?
Neither utter nor Diction shows ads.
Which is updated more often, utter or Diction?
utter ships an update fortnightly, and Diction fortnightly. Most recently, utter was updated on October 24, 2026 and Diction on October 25, 2026.

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