# Proloquo vs IzzySpells Letterboard

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.

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.

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

## The numbers

| Metric | Proloquo | IzzySpells Letterboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (148 ratings)](https://appshunter.io/ios/app/proloquo/id1521978238/reviews)** | — |
| Number of ratings | **148** | — |
| Positive reviews | 46.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Subscription | — |
| Size | 503 MB | 19 MB |
| Requires iOS | 18.0 | **15** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AssistiveWare](https://appshunter.io/developer/308368167) | [IzzyLifeApp](https://appshunter.io/developer/6816478748) |

## What reviewers say

### Proloquo

[App page](https://appshunter.io/ios/app/proloquo/id1521978238)

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:** Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |
| Monthly Subscription | $9.99 | per month |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $99.99 | per year |
| Yearly Subscription | $99.99 | per year |
| Yearly Subscription | $99.99 | per year |


### IzzySpells Letterboard

[App page](https://appshunter.io/ios/app/izzyspells-letterboard/id6816478746)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IzzySpells Pro | $34.99 | one-time |


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*