# Readray (formerly LilysAI) vs SubOnSite Card Read/Write

The clearest difference is in-app purchases: SubOnSite Card Read/Write at none against Readray (formerly LilysAI)'s 6. SubOnSite Card Read/Write also leads on update cadence (every 5 days vs every 3 weeks). Readray (formerly LilysAI)'s advantage is device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Readray (formerly LilysAI) sells 6 in-app purchases, starting at $10.49 per month. SubOnSite Card Read/Write asks for nothing beyond the download.

Readray (formerly LilysAI) ships an update every 3 weeks, SubOnSite Card Read/Write every 5 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Readray (formerly LilysAI) | SubOnSite Card Read/Write |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 173 MB | 28 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [LilysAI, INC.](https://appshunter.io/developer/1873842172) | [Sean Dunleavy](https://appshunter.io/developer/6803499851) |

## What reviewers say

### Readray (formerly LilysAI)

[App page](https://appshunter.io/ios/app/readray-formerly-lilysai/id6759151868)

This app acts as an AI assistant for reading, summarizing and researching content from various sources like videos, articles, and documents. It organizes your reading material into a personal library and provides interactive insights, key points, and follow-up research.

**Highlights:** AI-powered summaries and key points, Interactive visuals and follow-up research, Captures screenshots and tables from content, Precise source citations for AI output, Organized library with folders and reading status, Cross-platform synchronization

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LilysAI Starter Monthly | $10.49 | per month |
| LilysAI Basic Monthly | $19.99 | per month |
| LilysAI Pro Monthly | $59.99 | per month |
| LilysAI Starter Yearly | $91.99 | per year |
| LilysAI Basic Yearly | $179.99 | per year |
| LilysAI Pro Yearly | $599.99 | per year |


### SubOnSite Card Read/Write

[App page](https://appshunter.io/ios/app/subonsite-card-readwrite/id6803499849)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Readray (formerly LilysAI) free?

Readray (formerly LilysAI) is free to download, with in-app purchases available.

### Is SubOnSite Card Read/Write free?

SubOnSite Card Read/Write is free to download, with no in-app purchases.

### Do Readray (formerly LilysAI) or SubOnSite Card Read/Write have ads?

Neither Readray (formerly LilysAI) nor SubOnSite Card Read/Write shows ads.

### Which is updated more often, Readray (formerly LilysAI) or SubOnSite Card Read/Write?

Readray (formerly LilysAI) ships an update every 3 weeks, and SubOnSite Card Read/Write every 5 days. Most recently, Readray (formerly LilysAI) was updated on November 5, 2026 and SubOnSite Card Read/Write on October 31, 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.*