# Prompt Safe vs Knowly AI

The clearest difference is in-app purchases: Prompt Safe at none against Knowly AI's 12. Knowly AI's advantage is iOS requirement (14.0 vs 17). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Knowly AI sells 12 in-app purchases, starting at $3.89 per month. Prompt Safe asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on October 28, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | Prompt Safe | Knowly AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/knowly-ai/id6784674393/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | Every 2 days |
| Monetization | — | Free with in-app purchases |
| Size | 13 MB | 115 MB |
| Requires iOS | 17 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [The K Media](https://appshunter.io/developer/1852686689) | [Beijing Hi Hello Education Technology Co., Ltd.](https://appshunter.io/developer/1761761836) |

## What reviewers say

### Prompt Safe

[App page](https://appshunter.io/ios/app/prompt-safe/id6758128310)

**Features:** macOS Compatibility

**In-app purchases:** none


### Knowly AI

[App page](https://appshunter.io/ios/app/knowly-ai/id6784674393)

This AI-powered assistant facilitates clear communication for individuals working, living, or traveling internationally. It goes beyond simple translation to organize meetings, calls, and documents, providing clear records for follow-up. Ideal for professionals and travelers needing reliable cross-language support.

**Highlights:** Face-to-face translation, Live interpretation and meeting captions, AI-powered bilingual calls, Photo translation for signs and documents, Automatic meeting summaries and transcripts, Custom glossaries for industry terms

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Knowly Lite Monthly Plan 2 | $3.89 | per month |
| Knowly Lite Monthly Plan 1 | $4.09 | per month |
| Knowly Lite Monthly Plan | $4.29 | per month |
| Knowly Pro Monthly Plan 2 | $8.99 | per month |
| Knowly Pro Monthly Plan 1 | $9.49 | per month |
| Monthly Subscription | $12.00 | per month |
| Monthly Subscription | $15.00 | per month |
| Knowly Translation Add-On Package 2 | $1.29 | one-time |
| Knowly Translation Add-On Package 1 | $1.39 | one-time |
| Knowly Translation Top-Up | $1.49 | one-time |
| Personal Business Travel Plan 2 | $11.49 | one-time |
| Personal Business Travel Plan 1 | $12.49 | one-time |


## Frequently asked questions

### Is Prompt Safe free?

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

### Is Knowly AI free?

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

### Do Prompt Safe or Knowly AI have ads?

Neither Prompt Safe nor Knowly AI shows ads.

### Which is updated more often, Prompt Safe or Knowly AI?

Prompt Safe ships an update every 2 days, and Knowly AI every 2 days. Most recently, Prompt Safe was updated on October 28, 2026 and Knowly AI on November 1, 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.*