# Conversation Therapy Lite vs Ratio S/Z

The clearest difference is price: Conversation Therapy Lite at Free against Ratio S/Z's $2.99. Conversation Therapy Lite also leads on iOS requirement (9.0 vs 11.0). Ratio S/Z's advantage is update cadence (every 3 months vs every 7 months) and chart position (#196 vs unranked). On ads, in-app purchases and device support there is nothing between them.

Conversation Therapy Lite is free to download; Ratio S/Z costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Conversation Therapy Lite ships an update every 7 months, Ratio S/Z every 3 months. The most recent releases landed on November 3, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Conversation Therapy Lite | Ratio S/Z |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (60 ratings)](https://appshunter.io/ios/app/conversation-therapy-lite/id636843583/reviews)** | — |
| Number of ratings | **60** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free | — |
| Best chart rank | — | **#196** |
| Size | 27 MB | 25 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 12+ | 12+ |
| Developer | [Tactus Therapy Solutions Ltd.](https://appshunter.io/developer/438070002) | [Marina Sauca](https://appshunter.io/developer/1207544243) |

## What reviewers say

### Conversation Therapy Lite

[App page](https://appshunter.io/ios/app/conversation-therapy-lite/id636843583)

This app facilitates speech therapy by providing conversation starters and tools to practice language and social skills. It helps individuals with speech or language impairments engage in dialogue and carry over therapy lessons at home. The app offers customizable settings and tracks progress for one-on-one or group sessions.

**Highlights:** Conversation starters for various topics, Tools to practice language and social skills, Progress tracking for sessions, Customizable settings for age-appropriateness, Audio recording and scoring, Emailable session summaries

**In-app purchases:** none


### Ratio S/Z

[App page](https://appshunter.io/ios/app/ratio-sz/id1207544244)

**Currently charting:** #196 Top Paid · Medical (US App Store)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Conversation Therapy Lite free?

Conversation Therapy Lite is free to download, with no in-app purchases.

### Is Ratio S/Z free?

Ratio S/Z costs $2.99, with no in-app purchases.

### Do Conversation Therapy Lite or Ratio S/Z have ads?

Neither Conversation Therapy Lite nor Ratio S/Z shows ads.

### Which is updated more often, Conversation Therapy Lite or Ratio S/Z?

Conversation Therapy Lite ships an update every 7 months, and Ratio S/Z every 3 months. Most recently, Conversation Therapy Lite was updated on November 3, 2026 and Ratio S/Z on October 29, 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.*