# ChartDetector AI vs API653 Storage Tank Inspector

The clearest difference is ads: API653 Storage Tank Inspector at none against ChartDetector AI's shown. ChartDetector AI's advantage is update cadence (every 2 weeks vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. ChartDetector AI sells 18 in-app purchases, starting at $8.99 per 7 days and API653 Storage Tank Inspector sells 1 in-app purchase, starting at $9.00 per month. Whichever you choose, the download price is not the number that matters.

ChartDetector AI ships an update every 2 weeks, API653 Storage Tank Inspector every 5 months. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | ChartDetector AI | API653 Storage Tank Inspector |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (84 ratings)](https://appshunter.io/ios/app/chartdetector-ai/id6743856402/reviews)** | — |
| Number of ratings | **84** | — |
| Positive reviews | 44.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 weeks** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 126 MB | 3 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [KI Koehler International Ltd.](https://appshunter.io/developer/1804927582) | [Ambitionz Apps](https://appshunter.io/developer/1764753535) |

## What reviewers say

### ChartDetector AI

[App page](https://appshunter.io/ios/app/chartdetector-ai/id6743856402)

Transform chart images into expert trading analysis with AI. Get professional insights, key metrics, and action plans instantly. Ideal for making smarter trading decisions, regardless of experience level.

**Highlights:** AI-powered chart analysis, Real-time expert insights, Key metrics and patterns detection, Tailored trading strategies, Use phone camera or upload screenshots, Clear summary of analysis

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $8.99 | per 7 days |
| Weekly | $9.99 | per 7 days |
| News Monthly | $9.99 | per month |
| Monatlich | $11.99 | per month |
| Unlimited Monatlich | $12.99 | per month |
| Monatlich | $17.99 | per month |
| Monthly | $19.99 | per month |
| Monthly 24,99$ | $24.99 | per month |
| Jährlich | $24.99 | per year |
| Yearly (Discount) | $29.99 | per year |
| 6 Months | $34.99 | per 6 months |
| Unlimited Jährlich | $34.99 | per year |
| Yearly | $44.99 | per year |
| Yearly | $49.99 | per year |
| 6 Months | $49.99 | per 6 months |
| Jährlich | $49.99 | per year |
| Yearly | $49.99 | per year |
| 6 Months | $59.99 | per 6 months |


### API653 Storage Tank Inspector

[App page](https://appshunter.io/ios/app/api653-storage-tank-inspector/id6756944847)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| API 653 Storage Tank Inspector | $9.00 | per month |


## Frequently asked questions

### Is ChartDetector AI free?

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

### Is API653 Storage Tank Inspector free?

API653 Storage Tank Inspector is free to download, with in-app purchases available.

### Do ChartDetector AI or API653 Storage Tank Inspector have ads?

ChartDetector AI shows ads; API653 Storage Tank Inspector does not.

### Which is updated more often, ChartDetector AI or API653 Storage Tank Inspector?

ChartDetector AI ships an update every 2 weeks, and API653 Storage Tank Inspector every 5 months. Most recently, ChartDetector AI was updated on October 25, 2026 and API653 Storage Tank Inspector on October 18, 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.*