Comparison

Proloquo vs IzzySpells Letterboard

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

Head to head
About

Proloquo

This app provides an intuitive and efficient Augmentative and Alternative Communication (AAC) solution for users of all ages. It facilitates language development and effective communication with features like quick access to words, a search function, and a unique Thinking Space for early communicators. It also offers a full keyboard with word prediction and expert guidance through an accompanying coach.

Highlights
  • Intuitive and easy-to-use interface
  • Quick access to frequently used words
  • Search function for effortless word finding
  • Focus Mode™ for targeted word emphasis
  • Thinking Space™ for early communicators (iPad only)
  • Extensive vocabulary with Related Words™
  • Full keyboard with word prediction
  • Proloquo Coach for expert guidance
Features
Read full description

AssistiveWare Proloquo is an intuitive, easy-to-use Augmentative and Alternative Communication (AAC) app. Based on years of research, it is the only AAC app designed to meet the needs of all ages without sacrificing ease of use or efficiency. Proloquo is more than just a communication tool; it’s a gateway to language development and effective communication. AN EASY START With a unique design and quick one-tap access to the most used words, you can start using AAC right away. Finding any word is effortless, with an easily accessible Search function. Need to focus on or teach specific words? Use Focus Mode™ and draw attention without restricting or deleting words. THINKING SPACE (only available on iPad) Understanding a beginning communicator can feel like an endless guessing game, leading to frustration on both sides. Proloquo’s unique Thinking Space™ feature allows you to visualize and explore thoughts and meaning even with the earliest communicators. Arrange Proloquo’s visuals in any order for more intuitive communication. Understand each other faster and easier with Proloquo’s Thinking Space. GROWS WITH YOU Proloquo offers an extensive vocabulary unmatched in size and efficiency. With a user-friendly interface and innovative features such as Related Words™, Proloquo ensures everyone, from toddlers to adults, can discover, learn, and love language. Proloquo also offers a full keyboard with word prediction to support literacy. GET EXPERT AAC GUIDANCE WITH PROLOQUO COACH We know learning AAC can be challenging - that’s why we paired Proloquo with Proloquo Coach. Free with a Proloquo subscription, it equips families and educators with the tools and knowledge needed to support children and students in learning to communicate using AAC. With fast in-app support and guided practice, you will always know what to do next. SHARE PROLOQUO WITH YOUR TEAM FOR FREE Share Proloquo at no additional cost. Involve teachers, Speech Pathologists, and grandparents - download the Proloquo app and sync across multiple devices for free. Try Proloquo free for one month! How payment works • After your trial ends, payment will be charged to your Apple Account. • Subscriptions renew automatically. Payment is charged 24 hours before the current subscription period ends. • Don’t want to renew? Cancel more than 24 hours before the end of the current subscription period. • Want to cancel or change your subscription? Manage it in your account settings on the App Store. The standard Apple Terms of Use apply to this app: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

IzzySpells Letterboard

Features
Read full description

IzzySpells: Every Thought Deserves to Be Heard Honoring Your Mind, Unlocking Your Voice Being unable to speak does not mean having nothing to say. For non-verbal or minimally verbal individuals, and those navigating apraxia, the mind is full of ideas, feelings, and humor—even when the body refuses to cooperate. IzzySpells was created to honor that vibrant inner world, offering a compassionate, reliable bridge between your thoughts and the people around you. By transforming communication into purposeful pointing, it allows you to move at your own pace, retrain motor pathways, and finally share what has always been inside you. What We Stand For Believing in You First: You are intelligent, capable, and competent Gentle Motor Pathways: Apraxia creates a frustrating disconnect between brain and body. We break down motor steps into small, forgiving movements, giving your hands the time they need to catch up with your mind. Dignity & True Autonomy: Communication is about choices, boundaries, and genuine self-expression. IzzySpells empowers you to say what you want, on your own terms. Features Designed Around Your Comfort Flexible Letterboard Layouts: Start gently with spacious 3-board arrangements (A-I, J-R, S-Z) to make physical targeting easier, transitioning to a full 26-letter keyboard as your confidence grows. Calm, Low-Sensory Spaces: No sudden visual clutter, loud alarms, or anxiety-inducing timers. The interface remains quiet, clean, and sensory-friendly so you can focus peacefully. Warm Text-to-Speech: Convert your spelled words into clear, natural-sounding speech, allowing you to participate in conversations and feel the joy of being directly heard. Custom Visual Themes: Easily adjust contrast, background shades, and letter sizes to protect your eyes from fatigue and support unique visual needs. You Belong in the Conversation Your voice is precious, and your story matters. IzzySpells is here to support your journey with patience, respect, and deep empathy—helping you spell out your world, one letter at a time.

Screenshots

Proloquo4 screens
IzzySpells Letterboard4 screens

Verdict

The call

The clearest difference is update cadence: IzzySpells Letterboard at weekly against Proloquo's every 6 weeks. IzzySpells Letterboard also leads on iOS requirement (15 vs 18.0). 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. Proloquo sells 6 in-app purchases, starting at $9.99 per month and IzzySpells Letterboard sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Proloquo ships an update every 6 weeks, IzzySpells Letterboard weekly. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 8 level
Proloquo versus IzzySpells Letterboard: the parameters behind the verdict, then further details
ParameterProloquoIzzySpells Letterboard
PriceFreeFree
Rating4.0 (148 ratings) — better—
Positive reviews46.4% of reviews—
Number of ratings148 — better—
Update frequencyEvery 6 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015 — better
Further details — not scored
Size503 MB19 MB
Age rating4+4+
DeveloperAssistiveWareIzzyLifeApp

In-app purchases

6 purchases

Proloquo

Subscriptions6
  • Monthly Subscription1 Month trial$9.991 Month
  • Monthly Subscription1 Year trial$9.991 Month
  • Monthly Subscription6 Months trial$9.991 Month
Show 3 more
  • Yearly Subscription1 Month trial$99.991 Year
  • Yearly Subscription1 Year trial$99.991 Year
  • Yearly Subscription6 Months trial$99.991 Year
1 purchases

IzzySpells Letterboard

One-time1
  • IzzySpells Pro$34.99

Questions

Is Proloquo free?
Proloquo is free to download, with in-app purchases available.
Is IzzySpells Letterboard free?
IzzySpells Letterboard is free to download, with in-app purchases available.
Do Proloquo or IzzySpells Letterboard have ads?
Neither Proloquo nor IzzySpells Letterboard shows ads.
Which is updated more often, Proloquo or IzzySpells Letterboard?
Proloquo ships an update every 6 weeks, and IzzySpells Letterboard weekly. Most recently, Proloquo was updated on November 7, 2026 and IzzySpells Letterboard on November 6, 2026.

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