# IsonAI vs ReadLoft

The clearest difference is in-app purchases: IsonAI at none against ReadLoft's 6. ReadLoft's advantage is update cadence (every 4 days vs fortnightly) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. ReadLoft sells 6 in-app purchases, starting at $5.99 per month. IsonAI asks for nothing beyond the download.

IsonAI ships an update fortnightly, ReadLoft every 4 days. The most recent releases landed on October 28, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | IsonAI | ReadLoft |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/readloft/id6787309766/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 4 MB | 103 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Dimas Wibisono](https://appshunter.io/developer/1892365235) | [Madhura Basavaraju](https://appshunter.io/developer/6787309768) |

## What reviewers say

### IsonAI

[App page](https://appshunter.io/ios/app/isonai/id6761997078)

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

**In-app purchases:** none


### ReadLoft

[App page](https://appshunter.io/ios/app/readloft/id6787309766)

This app transforms text into natural-sounding audio, allowing you to listen to books, PDFs, web articles, and even text from images. It offers AI-powered summaries, flashcard creation, and voice cloning for a personalized listening experience. Track your reading goals and enjoy offline access to your content.

**Highlights:** Listen to PDFs, EPUBs, Word docs, and text files, Convert web links to audio articles, Extract text from images and screenshots, AI-powered summaries and Q&A, Create flashcards from documents, Clone your voice for narration, Offline listening

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ReadLoft Pro (Monthly) | $5.99 | per month |
| ReadLoft Pro+ (Monthly) | $9.99 | per month |
| ReadLoft Premium (Monthly) | $14.99 | per month |
| ReadLoft Pro (Annually) | $59.99 | per year |
| ReadLoft Pro+ (Annually) | $99.99 | per year |
| ReadLoft Premium (Annually) | $149.99 | per year |


## Frequently asked questions

### Is IsonAI free?

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

### Is ReadLoft free?

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

### Do IsonAI or ReadLoft have ads?

Neither IsonAI nor ReadLoft shows ads.

### Which is updated more often, IsonAI or ReadLoft?

IsonAI ships an update fortnightly, and ReadLoft every 4 days. Most recently, IsonAI was updated on October 28, 2026 and ReadLoft on October 10, 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.*