Comparison

Amsler vs Resonali

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

Head to head
About

Amsler

This application allows users to easily check for changes in their central vision using an Amsler grid. It offers multiple grid options, daily reminders, and guided instructions for self-testing. Designed for monitoring eye conditions or general vision health, it provides a convenient way to track visual changes.

Highlights
  • High-resolution Amsler grid
  • Daily reminder notifications
  • Guided self-testing instructions
  • Links to local eye care providers
  • Offline functionality
  • No sign-in required
Features
Read full description

Amsler helps you check for subtle changes in your vision — right from your device. Whether you're monitoring macular degeneration, other eye pathology, or simply want to keep tabs on your central vision, this app makes it easy to test yourself daily. It includes black-on-white, white-on-black, and red-on-black grid options, and a built-in reminder system to help you stay consistent. Plus, detailed instructions walk you through each step of the test. Designed by a board-certified ophthalmologist for clarity, reliability, and ease of use. Features: • Accurate, high-resolution Amsler grid • Daily reminder notifications • Guided instructions for self-testing • Links to eye care providers in your area • iPad-optimized grid at 10 cm x 10 cm • Works offline and requires no sign-in Amsler is provided for informational purposes only. It is not intended to provide medical advice, diagnosis, or treatment, and does not replace a comprehensive eye examination or the advice of a qualified healthcare professional. Amsler is not a medical device or medical test and has not been approved by the FDA. Do not rely on this app for medical decision-making. Always seek the advice of a qualified healthcare professional with any questions you may have regarding a medical condition.

About

Resonali

This tool provides speech-language pathologists with acoustic voice analysis for clinical use. It helps measure and compare voice data, generate summaries for documentation, and supports various voice tasks. Designed for efficient and organized objective voice assessment.

Highlights
  • Acoustic and aerodynamic voice measures
  • Guided voice workflow
  • Reference-range comparison
  • Exportable PDF summaries
  • De-identified workflow
  • Built-in Voice Measures Guide
Read full description

Resonali is a clinician-facing acoustic voice analysis tool designed for speech-language pathologists. Built by an SLP for SLPs, Resonali helps clinicians complete structured voice measurement tasks, review acoustic and aerodynamic measures, compare results with reference data, and generate organized summaries for clinician review and documentation support. Whether voice evaluations are part of your daily caseload or something you complete only occasionally, Resonali is designed to make objective voice data clearer, faster, and easier to organize. VOICE MEASURES IN ONE PLACE Resonali supports selected acoustic and aerodynamic voice measures, including: • Maximum Phonation Time (MPT) • S/Z ratio • Mean, minimum, and maximum fundamental frequency • Pitch range • Glide-based highest and lowest F0 • Jitter • Shimmer • Harmonics-to-Noise Ratio (HNR) • Cepstral Peak Prominence (CPP) • Mean, minimum, and maximum intensity • Dynamic intensity range • Selected formant measures • Acoustic Voice Quality Index (AVQI) • Dysphonia Severity Index (DSI) • Laryngeal DDK task measures GUIDED VOICE WORKFLOW Record directly in the app or upload existing audio files. Resonali guides clinicians through structured voice tasks with clinician-facing prompts and task instructions. Supported tasks may include sustained phonation, pitch glides, connected speech, Rainbow Passage reading, intensity tasks, and laryngeal DDK tasks. REFERENCE-INFORMED RESULTS Resonali helps organize objective voice data into clinically useful summaries. Features include: • Reference-range comparison • Visual result indicators • Organized acoustic and aerodynamic results • Exportable PDF summaries • Text export for documentation support • Built-in Voice Measures Guide • Reference category options, including female, male, transgender, and nonbinary/no sex-based reference options • De-identified workflow designed to minimize entry of patient-identifying information BUILT FOR SLPs Resonali is intended for speech-language pathologists, graduate student clinicians under supervision, and other qualified professionals using the app within the scope of their training and role. Resonali supports clinical workflow, documentation, and review of objective voice measures. It does not replace clinical judgment, instrumental assessment, medical evaluation, referral, or follow-up. SUBSCRIPTION ACCESS Resonali requires an active subscription for access. Subscription options may include weekly, monthly, and annual plans. Pricing is shown before purchase and subscriptions are billed through your Apple ID. Subscriptions may be managed or canceled in your App Store account settings. IMPORTANT CLINICAL DISCLAIMER Resonali is a clinical support tool. It does not independently diagnose, treat, cure, screen for, prevent, or monitor any disease or medical condition. Resonali does not provide medical advice or treatment recommendations. All outputs should be reviewed and interpreted by a qualified professional in the context of the speaker’s history, clinical presentation, recording conditions, task performance, and other relevant information.

Screenshots

Amsler4 screens
Resonali4 screens

Verdict

The call

The clearest difference is rating: Resonali at 5.0 against Amsler's 4.2. Resonali also leads on iOS requirement (15.1 vs 17.0). Amsler's advantage is in-app purchases (none vs 3). On price, ratings volume, update cadence and ads 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. Resonali sells 3 in-app purchases, starting at $4.99 per 7 days. Amsler asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Resonali holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 5 and 3 respectively.

UpkeepUpdate frequency

Amsler ships an update every 4 days, Resonali weekly. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Amsler versus Resonali: the parameters behind the verdict, then further details
ParameterAmslerResonali
PriceFreeFree
Rating4.2 (5 ratings)5.0 (3 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings5 — better3
Update frequencyEvery 4 days — betterWeekly
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size1 MB32 MB
Age rating4+12+
DeveloperFirst Eye Applications LLCResonali LLC

In-app purchases

None

Amsler

No in-app purchases

3 purchases

Resonali

Subscriptions3
  • Resonali Weekly$4.997 Days
  • Resonali Monthly$14.991 Month
  • Resonali Annual$99.991 Year

Questions

Is Amsler free?
Amsler is free to download, with no in-app purchases.
Is Resonali free?
Resonali is free to download, with in-app purchases available.
Which has better reviews, Amsler or Resonali?
Resonali is rated higher. Amsler averages 4.2 out of 5 from 5 ratings, while Resonali averages 5.0 from 3 ratings.
Do Amsler or Resonali have ads?
Neither Amsler nor Resonali shows ads.
Which is updated more often, Amsler or Resonali?
Amsler ships an update every 4 days, and Resonali weekly. Most recently, Amsler was updated on October 31, 2026 and Resonali on November 5, 2026.

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