# ERCOT vs IDknow

The clearest difference is in-app purchases: ERCOT at none against IDknow's 2. IDknow's advantage is update cadence (every 11 days vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. IDknow sells 2 in-app purchases, starting at $1.99 per month. ERCOT asks for nothing beyond the download.

ERCOT ships an update every 4 months, IDknow every 11 days. The most recent releases landed on July 5, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | ERCOT | IDknow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (113 ratings)](https://appshunter.io/ios/app/ercot/id520829355/reviews)** | — |
| Number of ratings | **113** | — |
| Positive reviews | 39.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 11 days** |
| Monetization | Free | — |
| Size | 81 MB | 61 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ERCOT](https://appshunter.io/developer/520829358) | [Shad Hardy](https://appshunter.io/developer/1842953663) |

## What reviewers say

### ERCOT

[App page](https://appshunter.io/ios/app/ercot/id520829355)

Monitor real-time power grid conditions and receive important news and alerts. Customize your home screen with interactive dashboards for supply, demand, fuel mix, and wholesale prices. Stay informed about grid status and upcoming meetings.

**Highlights:** Real-time grid monitoring, Customizable home screen, Interactive dashboards, Supply and demand tracking, Fuel mix information, Wholesale price data, News and alerts

**In-app purchases:** none


### IDknow

[App page](https://appshunter.io/ios/app/idknow/id6753190243)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $21.49 | per year |


## Frequently asked questions

### Is ERCOT free?

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

### Is IDknow free?

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

### Do ERCOT or IDknow have ads?

Neither ERCOT nor IDknow shows ads.

### Which is updated more often, ERCOT or IDknow?

ERCOT ships an update every 4 months, and IDknow every 11 days. Most recently, ERCOT was updated on July 5, 2026 and IDknow on September 19, 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.*