# MARSTEK vs Storium

The clearest difference is in-app purchases: MARSTEK at none against Storium's 1. MARSTEK also leads on iOS requirement (15.5 vs 26.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Storium sells 1 one-off in-app purchase. MARSTEK asks for nothing beyond the download.

MARSTEK ships an update every 2 weeks, Storium fortnightly. The most recent releases landed on October 27, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | MARSTEK | Storium |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (15 ratings)](https://appshunter.io/ios/app/marstek/id6459365638/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 35.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free | — |
| Size | 212 MB | 11 MB |
| Requires iOS | **15.5** | 26.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Hamedata Technology Co., Limited](https://appshunter.io/developer/589308586) | [Montanja](https://appshunter.io/developer/6772734351) |

## What reviewers say

### MARSTEK

[App page](https://appshunter.io/ios/app/marstek/id6459365638)

Monitor your solar energy system in real-time. Optimize for energy independence, outage protection, or savings by setting your preferences. Control your system remotely and receive instant alerts.

**Highlights:** Real-time solar energy monitoring, Customizable optimization settings, Remote system control, Instant alerts, Energy independence focus, Outage protection settings, Savings optimization

**Features:** macOS Compatibility

**In-app purchases:** none


### Storium

[App page](https://appshunter.io/ios/app/storium-save-what-matters/id6772734079)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Storium Unlimited | $3.99 | one-time |


## Frequently asked questions

### Is MARSTEK free?

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

### Is Storium free?

Storium is free to download, with in-app purchases available.

### Do MARSTEK or Storium have ads?

Neither MARSTEK nor Storium shows ads.

### Which is updated more often, MARSTEK or Storium?

MARSTEK ships an update every 2 weeks, and Storium fortnightly. Most recently, MARSTEK was updated on October 27, 2026 and Storium 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.*