# A vs SRD

The clearest difference is iOS requirement: A at 11.1 against SRD's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

A ships an update every 4 weeks, SRD monthly. The most recent releases landed on October 26, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | A | SRD |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/srd/id1567742103/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Monetization | — | Free |
| Size | 51 MB | 46 MB |
| Requires iOS | **11.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [BLUE STAR DIAMONDS PRIVATE LIMITED](https://appshunter.io/developer/1478509200) | [Nikhil Shah](https://appshunter.io/developer/1658983744) |

## What reviewers say

### A

[App page](https://appshunter.io/ios/app/a-star-alliance/id909282323)

**Features:** macOS Compatibility

**In-app purchases:** none


### SRD

[App page](https://appshunter.io/ios/app/srd/id1567742103)

Discover and search a vast collection of over 2000 polished diamonds. This app offers advanced features for easy registration, quick searching, and finding diamonds with marketable prices and the finest quality.

**Highlights:** Search over 2000 diamonds, Easy registration, Quick search functionality, Marketable pricing information, Finest quality diamonds

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

**In-app purchases:** none


## Frequently asked questions

### Is A free?

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

### Is SRD free?

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

### Do A or SRD have ads?

Neither A nor SRD shows ads.

### Which is updated more often, A or SRD?

A ships an update every 4 weeks, and SRD monthly. Most recently, A was updated on October 26, 2026 and SRD on November 3, 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.*