# Readefine vs AI Piper

The clearest difference is update cadence: Readefine at every 3 weeks against AI Piper's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Readefine sells 1 in-app purchase, starting at $10.00 per month and AI Piper sells 1 in-app purchase, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Readefine ships an update every 3 weeks, AI Piper every 2 months. The most recent releases landed on October 12, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Readefine | AI Piper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/readefine/id1544832207/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Freemium | — |
| Size | 9 MB | 4 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Readefine LLC](https://appshunter.io/developer/1544832209) | [Ankur Piparsania](https://appshunter.io/developer/1651354606) |

## What reviewers say

### Readefine

[App page](https://appshunter.io/ios/app/readefine/id1544832207)

This app rewrites web content to suit your needs, offering AI-powered summarization, translation, tone changes, and simplification. It also includes a hyper-speed dictionary and unit converter.

**Highlights:** AI-powered rewording, Summarize web content, Translate into multiple languages, Adjust text tone and complexity, Hyper-speed dictionary, Unit and currency conversion

**Features:** Safari Extension

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Readefine AI: Pro | $10.00 | per month |


### AI Piper

[App page](https://appshunter.io/ios/app/ai-piper/id1665359478)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription | $4.99 | per month |


## Frequently asked questions

### Is Readefine free?

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

### Is AI Piper free?

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

### Do Readefine or AI Piper have ads?

Neither Readefine nor AI Piper shows ads.

### Which is updated more often, Readefine or AI Piper?

Readefine ships an update every 3 weeks, and AI Piper every 2 months. Most recently, Readefine was updated on October 12, 2026 and AI Piper on October 30, 2026.

---

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