# ISO Today vs MISO Mobile

The clearest difference is rating: MISO Mobile at 5.0 against ISO Today's 4.2. MISO Mobile also leads on review sentiment (100% vs 74%) and update cadence (monthly vs every 3 months). ISO Today's advantage is ratings volume (103 vs 27) and iOS requirement (13.0 vs 17.6). On price, ads, in-app purchases and monetization model 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 holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 103 and 27 respectively. Written reviews point the same way: 74% of ISO Today's written reviews are positive against 100% of MISO Mobile's.

ISO Today ships an update every 3 months, MISO Mobile monthly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | ISO Today | MISO Mobile |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (103 ratings)](https://appshunter.io/ios/app/iso-today/id596881268/reviews) | **[5.0 (27 ratings)](https://appshunter.io/ios/app/miso-mobile/id1041467824/reviews)** |
| Number of ratings | **103** | 27 |
| Positive reviews | 74.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 11 MB | 58 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [California Independent System Operator Corporation](https://appshunter.io/developer/596881471) | [Midcontinent Independent System Operator, Inc.](https://appshunter.io/developer/1041467823) |

## What reviewers say

### ISO Today

[App page](https://appshunter.io/ios/app/iso-today/id596881268)

Track California's power grid status, energy prices, and renewable production. Receive alerts for conservation needs and monitor supply adequacy up to seven days ahead. View detailed supply breakdowns and historical data.

**Highlights:** Monitor resource adequacy capacity, View grid status and demand, Renewables and supply graphs, Wholesale energy price map, Receive Flex Alerts, Track calendar events

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 💡 Informative data about grid
- 👍 Easy to use interface
- 📊 Nice graphs and visuals
- 🚀 Fast loading (in some reviews)
- ✅ Good for energy consumers

**What reviewers complain about**

- 🐛 Crashes frequently
- ⚠️ Alerts not clearing
- 📩 Too many duplicate alerts
- 🐌 Slow loading times
- 📱 Text size too small

**Reported bugs**

- App crashes on launch
- Calendar crashes instantly
- Alerts cannot be cleared
- Page does not scroll properly with alerts
- Items below Calendar unreachable on smaller screens

**Requested features**

- Localized alerts
- Ability to turn on/off alerts for specific locales
- Multi-day and seasonal trends
- Home-screen widget
- See today's demand vs. last year/week


### 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


## Frequently asked questions

### Is ISO Today free?

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

### Is MISO Mobile free?

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

### Which has better reviews, ISO Today or MISO Mobile?

MISO Mobile is rated higher. ISO Today averages 4.2 out of 5 from 103 ratings, while MISO Mobile averages 5.0 from 27 ratings.

### Do ISO Today or MISO Mobile have ads?

Neither ISO Today nor MISO Mobile shows ads.

### Which is updated more often, ISO Today or MISO Mobile?

ISO Today ships an update every 3 months, and MISO Mobile monthly. Most recently, ISO Today was updated on November 1, 2026 and MISO Mobile on November 2, 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.*