# Subtext vs Knife Sharpening

The clearest difference is in-app purchases: Knife Sharpening at none against Subtext's 14. Knife Sharpening also leads on ads (none vs shown). Subtext's advantage is device support (3 vs 1). On price and iOS requirement there is nothing between them.

Both are free to download. Subtext sells 13 in-app purchases, starting at $4.99 per 7 days. Knife Sharpening asks for nothing beyond the download.

## The numbers

| Metric | Subtext | Knife Sharpening |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (21 ratings)](https://appshunter.io/ios/app/subtext-ai-writing-assistant/id6736559861/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | — |
| Monetization | Free with in-app purchases | — |
| Size | 84 MB | 4 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ANTON LICHT](https://appshunter.io/developer/1772410636) | [Jack Kelley](https://appshunter.io/developer/6793921106) |

## What reviewers say

### Subtext

[App page](https://appshunter.io/ios/app/subtext-ai-writing-assistant/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 (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 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 |
| Monthly Subscription | $19.99 | per month |
| Yearly Subscription | $29.99 | per year |
| Yearly Subscription | $39.99 | per year |
| 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 | $69.99 | per year |
| Yearly Subscription | $89.99 | per year |


### Knife Sharpening

[App page](https://appshunter.io/ios/app/knife-sharpening/id6793920714)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Subtext free?

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

### Is Knife Sharpening free?

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

### Do Subtext or Knife Sharpening have ads?

Subtext shows ads; Knife Sharpening does not.

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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.*