# CAS vs Subtext

The clearest difference is in-app purchases: CAS at none against Subtext's 10. CAS also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.6). Subtext's advantage is update cadence (every 2 weeks vs every 2 months). On price and device support there is nothing between them.

Both are free to download. Subtext sells 10 in-app purchases, starting at $2.99 per 7 days. CAS asks for nothing beyond the download.

CAS ships an update every 2 months, Subtext every 2 weeks. The most recent releases landed on November 2, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | CAS | Subtext |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (21 ratings)](https://appshunter.io/ios/app/subtext-write-better-texts/id6736559861/reviews)** |
| Number of ratings | — | **21** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 86 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EMERG SOLUTIONS PTY LTD](https://appshunter.io/developer/1763935640) | [ANTON LICHT](https://appshunter.io/developer/1772410636) |

## What reviewers say

### CAS

[App page](https://appshunter.io/ios/app/cas/id1209907915)

**Features:** macOS Compatibility

**In-app purchases:** none


### Subtext

[App page](https://appshunter.io/ios/app/subtext-write-better-texts/id6736559861)

Enhance your written communication with an AI assistant that helps you compose, refine, and analyze messages. It smooths interactions, removes emotional triggers, and ensures your words are clear, calm, and authentic, fostering better relationships and mental well-being.

**Highlights:** AI message composition and enhancement, Grammar, spelling, and sentence correction, Tone analysis and word tuning, Response and reply generation, Message analysis for triggers and aggression, AI humanizer for natural messaging

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $2.99 | per 7 days |
| Weekly Subscription | $4.99 | per 7 days |
| Weekly Subscription | $5.99 | per 7 days |
| Weekly Subscription | $6.99 | per 7 days |
| Monthly Subscription | $9.99 | per month |
| Yearly Subscription | $39.99 | per year |
| Yearly Subscription | $49.99 | per year |
| Yearly Subscription | $49.99 | per year |
| Yearly Subscription | $69.99 | per year |
| Yearly Subscription | $89.99 | per year |

**What reviewers like**

- ✨ Game changer for communication
- 🚀 Saves time on editing
- 💡 Helps untangle thoughts
- 👍 Clear, kind, and professional tone
- 😊 Increases communication confidence

**Requested features**

- Free trial example


## Frequently asked questions

### Is CAS free?

CAS is free to download, with no in-app purchases.

### Is Subtext free?

Subtext is free to download, with in-app purchases available.

### Do CAS or Subtext have ads?

Subtext shows ads; CAS does not.

### Which is updated more often, CAS or Subtext?

CAS ships an update every 2 months, and Subtext every 2 weeks. Most recently, CAS was updated on November 2, 2026 and Subtext on November 8, 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.*