# AI Signal vs ChartReader AI

The clearest difference is update cadence: ChartReader AI at fortnightly against AI Signal's every 4 months. ChartReader AI also leads on iOS requirement (15.1 vs 18). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AI Signal sells 2 in-app purchases, starting at $6.99 per 7 days and ChartReader AI sells 3 in-app purchases, starting at $9.99 per 7 days. Whichever you choose, the download price is not the number that matters.

AI Signal ships an update every 4 months, ChartReader AI fortnightly. The most recent releases landed on November 9, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | AI Signal | ChartReader AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/chartreader-ai-trade-analysis/id6771780471/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | — | Subscription |
| Size | 56 MB | 58 MB |
| Requires iOS | 18 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [OGUZ ATA](https://appshunter.io/developer/1859733632) | [Juergen Gunz](https://appshunter.io/developer/1640315744) |

## What reviewers say

### AI Signal

[App page](https://appshunter.io/ios/app/ai-signal-chart-detector/id6756277203)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $6.99 | per 7 days |
| Yearly Subscription | $49.99 | per year |


### ChartReader AI

[App page](https://appshunter.io/ios/app/chartreader-ai-trade-analysis/id6771780471)

Analyze stock and crypto charts using AI to identify trends, patterns, and market scenarios. Get market insights, news summaries, and an AI mentor for trading education. Upload screenshots or photos for quick analysis.

**Highlights:** AI chart analysis from screenshots, Stock and crypto market insights, Technical analysis explanations, News & social media sentiment summaries, AI trading mentor chat, Influential trader tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ChartReader Pro | $9.99 | per 7 days |
| ChartReader Pro | $34.99 | per 6 months |
| ChartReader Pro | $44.99 | per 6 months |


## Frequently asked questions

### Is AI Signal free?

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

### Is ChartReader AI free?

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

### Do AI Signal or ChartReader AI have ads?

Neither AI Signal nor ChartReader AI shows ads.

### Which is updated more often, AI Signal or ChartReader AI?

AI Signal ships an update every 4 months, and ChartReader AI fortnightly. Most recently, AI Signal was updated on November 9, 2026 and ChartReader AI on November 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.*