# Grey Chain ESS vs Barcode Generator Barcode Guru

The clearest difference is in-app purchases: Grey Chain ESS at none against Barcode Generator Barcode Guru's 10. Grey Chain ESS also leads on ads (none vs shown) and iOS requirement (11.0 vs 13.0). On price, update cadence and device support there is nothing between them.

Both are free to download. Barcode Generator Barcode Guru sells 10 in-app purchases, starting at $7.99 per month. Grey Chain ESS asks for nothing beyond the download.

Grey Chain ESS ships an update every 3 weeks, Barcode Generator Barcode Guru fortnightly. The most recent releases landed on September 14, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Grey Chain ESS | Barcode Generator Barcode Guru |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (430 ratings)](https://appshunter.io/ios/app/barcode-generator-barcode-guru/id6503272149/reviews)** |
| Number of ratings | — | **430** |
| Positive reviews | — | 30.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 49 MB | 77 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Grey Chain Technology Private Limited](https://appshunter.io/developer/1217003720) | [Gulooloo Tech](https://appshunter.io/developer/1574018169) |

## What reviewers say

### Grey Chain ESS

[App page](https://appshunter.io/ios/app/grey-chain-ess/id1619989364)

**Features:** macOS Compatibility

**In-app purchases:** none


### Barcode Generator Barcode Guru

[App page](https://appshunter.io/ios/app/barcode-generator-barcode-guru/id6503272149)

Easily generate and scan various barcode types with this all-in-one tool. Customize your barcodes with colors and text, manage your history, and quickly scan existing codes. It's a comprehensive solution for all your barcode needs.

**Highlights:** Generate all barcode types, Scan barcodes and QR codes, Customize barcode appearance, Manage generation history, Professional barcode templates, Search generated records

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month PRO | $7.99 | per month |
| One Month VIP | $9.99 | per month |
| Yearly Subscription 80% OFF | $12.99 | per year |
| Yearly Subscription 60%OFF | $13.99 | per year |
| One Year PRO | $20.99 | per year |
| Yearly Free Trial | $25.99 | per year |
| One Year PRO | $64.99 | per year |
| Lifetime subscription | $27.99 | one-time |
| Lifetime PRO | $42.99 | one-time |
| Lifetime VIP | $59.99 | one-time |


## Frequently asked questions

### Is Grey Chain ESS free?

Grey Chain ESS is free to download, with no in-app purchases.

### Is Barcode Generator Barcode Guru free?

Barcode Generator Barcode Guru is free to download, with in-app purchases available.

### Do Grey Chain ESS or Barcode Generator Barcode Guru have ads?

Barcode Generator Barcode Guru shows ads; Grey Chain ESS does not.

### Which is updated more often, Grey Chain ESS or Barcode Generator Barcode Guru?

Grey Chain ESS ships an update every 3 weeks, and Barcode Generator Barcode Guru fortnightly. Most recently, Grey Chain ESS was updated on September 14, 2026 and Barcode Generator Barcode Guru on September 27, 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.*