# bac | باك vs DULIMANOPTICS

bac | باك and DULIMANOPTICS are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

bac | باك ships an update fortnightly, DULIMANOPTICS every 11 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | bac | باك | DULIMANOPTICS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/dulimanoptics/id6763791872/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 11 days** |
| Monetization | — | Free |
| Size | 117 MB | 158 MB |
| Requires iOS | 16.6 | **15** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Cashbac, CO.](https://appshunter.io/developer/1874674182) | [SKHAA FOR INFORMATION TECHNOLOGY EST](https://appshunter.io/developer/1656523576) |

## What reviewers say

### bac | باك

[App page](https://appshunter.io/ios/app/bac/id6758734745)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


### DULIMANOPTICS

[App page](https://appshunter.io/ios/app/dulimanoptics/id6763791872)

Discover a wide selection of prescription and sunglasses with modern designs from top brands. Enjoy a seamless shopping experience with detailed product information, exclusive offers, and advanced search filters. Find the perfect eyewear for daily comfort or a unique look.

**Highlights:** Wide selection of sunglasses and prescription glasses, Easy categories for faster shopping, Detailed product information, Exclusive in-app offers and discounts, Fast and secure shopping experience, Advanced search and filters

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

**In-app purchases:** none


## Frequently asked questions

### Is bac | باك free?

bac | باك is free to download, with no in-app purchases.

### Is DULIMANOPTICS free?

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

### Do bac | باك or DULIMANOPTICS have ads?

Neither bac | باك nor DULIMANOPTICS shows ads.

### Which is updated more often, bac | باك or DULIMANOPTICS?

bac | باك ships an update fortnightly, and DULIMANOPTICS every 11 days. Most recently, bac | باك was updated on November 9, 2026 and DULIMANOPTICS on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*