# EROI vs Master Storage

EROI and Master Storage 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.

EROI ships an update monthly, Master Storage every 2 months. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | EROI | Master Storage |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 2 months |
| Size | 41 MB | 45 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Juan Serna](https://appshunter.io/developer/1591966365) | [Emilio Serna](https://appshunter.io/developer/1587429433) |

## What reviewers say

### EROI

[App page](https://appshunter.io/ios/app/eroi/id1591966363)

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

**In-app purchases:** none


### Master Storage

[App page](https://appshunter.io/ios/app/master-storage/id6451397716)

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

**In-app purchases:** none


## Frequently asked questions

### Is EROI free?

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

### Is Master Storage free?

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

### Do EROI or Master Storage have ads?

Neither EROI nor Master Storage shows ads.

### Which is updated more often, EROI or Master Storage?

EROI ships an update monthly, and Master Storage every 2 months. Most recently, EROI was updated on September 9, 2026 and Master Storage on September 24, 2026.

---

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