Comparison

Speakometer vs Aperture

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

Head to head
About

Speakometer

This app uses advanced AI to provide personalized feedback on your English pronunciation and accent. Practice speaking in British or American accents, learn correct sounds, and track your progress to speak English more fluently and confidently.

Highlights
  • AI-powered pronunciation feedback
  • British and American accent practice
  • Progress tracking and detailed feedback
  • Personalized practice plans
  • Learn English sounds and common mistakes
  • IPA chart support
  • 65,000+ words for practice
Features
Read full description

Speakometer is an AI-powered English pronunciation app for accent training, IPA guidance and spoken English practice. Improve British or American English pronunciation with instant feedback, IPA sounds and clear guided practice. Say a word, get a pronunciation score, see which sounds need work and repeat with clear native-speaker examples. Speakometer helps you practice British English pronunciation, American English pronunciation and difficult English sounds. Designed for learners who want practical accent training, better spoken English and a simple pronunciation practice app they can use every day. Why choose Speakometer? • AI pronunciation feedback: Get instant feedback on your spoken English using advanced pronunciation analysis. Learn which sounds you pronounce accurately, which need more practice and how to improve them. • British & American English: Practice with British or American pronunciation models. Listen, repeat and compare your speech with clear examples, including Received Pronunciation (RP) British English. • Personalised practice: Get practice suggestions based on your native language, learning history and progress, so you can focus on the English sounds that are most difficult for you. • IPA & phonetic guidance: Use the International Phonetic Alphabet (IPA) to understand how English words are pronounced. Learn vowels, consonants, stress patterns and spelling–sound differences. • Minimal pairs and common mistakes: Train difficult sounds with minimal pairs, long and short vowels, voiced and voiceless consonants, word endings, silent letters and consonant clusters. • 65,000+ English words: Search and practice thousands of English words. Hear pronunciations in British and American English, repeat them and track your progress over time. • Progress tracking: Test your English pronunciation, follow your improvement and build a regular speaking habit with detailed practice history. • Multilingual support: Use translations in 40+ languages to make English pronunciation practice easier for ESL and EFL learners. Topics and word lists include: • Top 3,333 English words • Thematic word lists • Commonly mispronounced words • Long vs short vowels • Voiced vs voiceless consonants • Word endings: -ed and -s • Silent letters and consonant clusters • Irregular verbs and grammar-based pronunciation • Received Pronunciation (RP British English) Speakometer can help you: • Improve pronunciation for study, work and travel. • Practice clearer speaking for IELTS-style speaking tests and other English exams. • Build confidence in daily conversation. • Learn English sounds with IPA and phonetic examples. • Reduce pronunciation mistakes linked to your native language. Speakometer is free to download and includes optional subscription features. Download Speakometer and start improving your English pronunciation today! Subscription details & Terms of Use: https://www.speakometer.net/terms-and-conditions.html Privacy Policy: https://www.speakometer.net/privacy-policy.html

About

Aperture

Features
Read full description

Most practice journals can only ever agree with you. Aperture is built so it can tell you nothing happened. It hides the target, seals what you recorded before you can revise it, and scores your impressions against what was actually in the photo. You don't have to wonder whether you're improving. You can look. A SESSION, STAGE BY STAGE - Cool-down: a short breathing pacer to quiet the analytic mind - Ideogram: a fast reflexive mark, then tag the basic gestalt - Sensory: colors, textures, temperatures, sounds, forms - Sketch: the spatial layout, on a full canvas - Assemble: your final impressions, before you commit - Reveal: only now does the target appear, and the scoring begin Until you commit, the target is never shown, hinted at, or inferable. You work from a meaningless reference number. YOUR GUT, KEPT SEPARATE FROM YOUR GUESSES Raw sensory impressions stay visually separate from flagged guesses (AOL: the mind's premature conclusions). Flagging a guess never costs you points. That separation is the habit the whole method is built on. SCORING YOU CANNOT FUDGE Your score is how much of what you sensed matches what was really there, judged against a fixed vocabulary set in advance rather than your memory of what you meant. It rewards accurate sensory data, not lucky label-guessing, and shows you which impressions matched and which missed. Log enough sessions and it will tell you plainly whether you are beating chance. A REFEREE, NOT AN ORACLE (SUPPORTED IPHONES) An optional AI judge reads the session you already sealed and scores it against the target. It can lower a generous score but never inflate one, and it never tells you what you will perceive next time. NOTHING LEAVES YOUR IPHONE No account, no analytics, no server of ours. Your sessions live on your device. Optional Pro sync goes only through your own private iCloud, and the judge runs on-device, so nothing you write is sent anywhere for analysis. FREE TO TRY, PROPERLY Your first 3 sessions are complete and full-featured: the whole protocol, the full target pool, real scoring. Aperture Pro then unlocks: - Unlimited sessions - The full 300+ target library - Analytics that show your results against chance - Unlimited named viewers with separate histories - Relay mode: two people, one hidden target, revealed together - Session export (JSON) Aperture Pro is $6.99/month, or $39.99/year with 1 month free, or a one-time lifetime purchase. Subscriptions renew automatically unless cancelled. Aperture builds on Controlled Remote Viewing, the six-stage protocol developed at SRI in the 1970s and the subject of declassified government research. It makes no claims about psychic ability and predicts nothing. It is a practice journal and an attention-training tool. Test yourself, collect your own data, draw your own conclusions. Privacy policy: https://quietoptics.com/aperture/privacy.html Terms of use: https://quietoptics.com/aperture/terms.html

Screenshots

Speakometer4 screens
Aperture4 screens

Verdict

The call

The clearest difference is update cadence: Aperture at every 4 days against Speakometer's every 3 months. Speakometer's advantage is iOS requirement (15.5 vs 17.0). On price, ads, in-app purchases and device support 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. Speakometer sells 3 in-app purchases, starting at $4.99 per month and Aperture sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Speakometer ships an update every 3 months, Aperture every 4 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
Speakometer versus Aperture: the parameters behind the verdict, then further details
ParameterSpeakometerAperture
PriceFreeFree
Rating4.7 (2.1K ratings) — better—
Positive reviews84.7% of reviews—
Number of ratings2.1K — better—
Update frequencyEvery 3 monthsEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better17.0
Further details — not scored
Size100 MB57 MB
Age rating4+4+
DeveloperDatawideQuiet Optics LLC

Bugs and requests

Speakometer

Reported bugs

5 issues
  • Pronunciation and phonetic is totally different than Cambridge dictionary
  • Some words are not pronounced in a 'British accent'
  • Tells you your pronunciation is perfect when it's not
  • Microphone not working
  • Bugs in the phonetics section

Requested features

8 requests
  • Sentences practice
  • More accent options
  • Translate words
  • Organize favorite words
  • Automatic word scrolling
Show 3 more
  • Practice sentences and conversations
  • Add weak sounds for some words
  • Add British pronunciation samples of modern RP

Aperture

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Speakometer

Subscriptions3
  • Premium-Monthly3 Days trial$4.991 Month
  • Premium-6 Monthly3 Days trial$19.996 Months
  • Premium-Yearly3 Days trial$29.991 Year
3 purchases

Aperture

Subscriptions2
  • Aperture Pro — Monthly$4.991 Month
  • Aperture Pro — Annual1 Month trial$29.991 Year
One-time1
  • Aperture Pro — Lifetime$59.99

Questions

Is Speakometer free?
Speakometer is free to download, with in-app purchases available.
Is Aperture free?
Aperture is free to download, with in-app purchases available.
Do Speakometer or Aperture have ads?
Neither Speakometer nor Aperture shows ads.
Which is updated more often, Speakometer or Aperture?
Speakometer ships an update every 3 months, and Aperture every 4 days. Most recently, Speakometer was updated on October 27, 2026 and Aperture on October 24, 2026.

Other comparisons