# ECO vs Retro ID

The clearest difference is in-app purchases: ECO at none against Retro ID's 4. ECO also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 weeks). On price and device support there is nothing between them.

Both are free to download. Retro ID sells 4 in-app purchases, starting at $9.99 per 7 days. ECO asks for nothing beyond the download.

ECO ships an update every 3 days, Retro ID every 3 weeks. The most recent releases landed on October 4, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | ECO | Retro ID |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/retro-id-tech-identifier-ai/id6759243217/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 80 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Eco Plugs Enterprise Co., Ltd.](https://appshunter.io/developer/1483038462) | [Dogan TURAN](https://appshunter.io/developer/1759144166) |

## What reviewers say

### ECO

[App page](https://appshunter.io/ios/app/eco-tracker/id1448628015)

**Features:** macOS Compatibility

**In-app purchases:** none


### Retro ID

[App page](https://appshunter.io/ios/app/retro-id-tech-identifier-ai/id6759243217)

Instantly identify vintage electronics using AI-powered image recognition. Get details on brand, model, era, authentication, condition, estimated value, and historical context. Track your collection's total worth and share your findings.

**Highlights:** AI-powered identification, Authentication assessment, Condition grading, Estimated market value, Price trend indicator, Collection management, Technical specifications

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Retro Identifier Pro Weekly | $9.99 | per 7 days |
| Retro Identifier Annually | $29.99 | per year |
| Retro Identifier Annually | $29.99 | per year |
| Retro Identifier Pro Annually | $59.99 | per year |


## Frequently asked questions

### Is ECO free?

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

### Is Retro ID free?

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

### Do ECO or Retro ID have ads?

Retro ID shows ads; ECO does not.

### Which is updated more often, ECO or Retro ID?

ECO ships an update every 3 days, and Retro ID every 3 weeks. Most recently, ECO was updated on October 4, 2026 and Retro ID on October 20, 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.*