# MISO Mobile vs PTSI Events

The clearest difference is update cadence: MISO Mobile at monthly against PTSI Events's every 6 months. PTSI Events's advantage is iOS requirement (15.5 vs 17.6). 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.

MISO Mobile ships an update monthly, PTSI Events every 6 months. The most recent releases landed on October 24, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | MISO Mobile | PTSI Events |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (27 ratings)](https://appshunter.io/ios/app/miso-mobile/id1041467824/reviews)** | — |
| Number of ratings | **27** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | Free | — |
| Size | 58 MB | 66 MB |
| Requires iOS | 17.6 | **15.5** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Midcontinent Independent System Operator, Inc.](https://appshunter.io/developer/1041467823) | [Mosaic Learning, Inc.](https://appshunter.io/developer/518404678) |

## What reviewers say

### MISO Mobile

[App page](https://appshunter.io/ios/app/miso-mobile/id1041467824)

Visualize real-time energy market data and grid conditions. Monitor supply, demand, prices, and fuel mix 24/7 with instant system notifications.

**Highlights:** Real-time energy market visualization, 24/7 grid condition monitoring, Supply and demand tracking, Price monitoring, Fuel mix data, Real-time system notifications

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

**In-app purchases:** none


### PTSI Events

[App page](https://appshunter.io/ios/app/ptsi-events/id6444631283)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MISO Mobile free?

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

### Is PTSI Events free?

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

### Do MISO Mobile or PTSI Events have ads?

Neither MISO Mobile nor PTSI Events shows ads.

### Which is updated more often, MISO Mobile or PTSI Events?

MISO Mobile ships an update monthly, and PTSI Events every 6 months. Most recently, MISO Mobile was updated on October 24, 2026 and PTSI Events on October 30, 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.*