# Gacha Architect vs SRT Flow

The clearest difference is update cadence: Gacha Architect at every 2 days against SRT Flow's monthly. Gacha Architect also leads on iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Gacha Architect ships an update every 2 days, SRT Flow monthly. The most recent releases landed on October 15, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Gacha Architect | SRT Flow |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 2 days** | Monthly |
| Size | 31 MB | 16 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [kiha kwon](https://appshunter.io/developer/1870540100) | [changok kim](https://appshunter.io/developer/1877796246) |

## What reviewers say

### Gacha Architect

[App page](https://appshunter.io/ios/app/gacha-architect-calc/id6758045984)

**In-app purchases:** none


### SRT Flow

[App page](https://appshunter.io/ios/app/srt-flow/id6759272046)

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

**In-app purchases:** none


## Frequently asked questions

### Is Gacha Architect free?

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

### Is SRT Flow free?

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

### Do Gacha Architect or SRT Flow have ads?

Both Gacha Architect and SRT Flow show ads.

### Which is updated more often, Gacha Architect or SRT Flow?

Gacha Architect ships an update every 2 days, and SRT Flow monthly. Most recently, Gacha Architect was updated on October 15, 2026 and SRT Flow on October 25, 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.*