# Rocklahoma vs EV Engine Sound

The clearest difference is price: Rocklahoma at Free against EV Engine Sound's $1.99. Rocklahoma also leads on iOS requirement (16.0 vs 27.0). EV Engine Sound's advantage is update cadence (every 3 weeks vs every 10 months). On ads, in-app purchases and device support there is nothing between them.

Rocklahoma is free to download; EV Engine Sound costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Rocklahoma ships an update every 10 months, EV Engine Sound every 3 weeks. The most recent releases landed on November 6, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Rocklahoma | EV Engine Sound |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.8 (1.4K ratings)](https://appshunter.io/ios/app/rocklahoma/id988941758/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 76.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 101 MB | 2 MB |
| Requires iOS | **16.0** | 27.0 |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Pryor Creek Music Festivals Inc](https://appshunter.io/developer/1698327464) | [Patrick Christensen](https://appshunter.io/developer/1618808605) |

## What reviewers say

### Rocklahoma

[App page](https://appshunter.io/ios/app/rocklahoma/id988941758)

This app serves as your comprehensive guide to a major rock music festival. It allows you to view the lineup, schedule, and festival maps, receive real-time updates, and access camping information. You can also purchase passes and get instant answers to your questions.

**Highlights:** Full lineup and schedule, Real-time alerts and updates, Interactive festival maps, Camping information, Pass and VIP package purchase, In-app festival assistant

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

**In-app purchases:** none

**What reviewers like**

- 🎉 Fun festival experience
- 👍 Great food and atmosphere
- 🤘 Awesome lineup of bands
- 👥 Friendly and welcoming community

**What reviewers complain about**

- 🐛 App crashes and technical issues
- 📶 Unreliable internet connectivity at the festival
- 🤔 Difficulty registering wristbands

**Reported bugs**

- App crashing and database corruption
- Location tracking not working properly

**Requested features**

- Improved app stability and reliability
- Better offline functionality


### EV Engine Sound

[App page](https://appshunter.io/ios/app/ev-engine-sound/id6819582057)

**Features:** iPhone Duo support

**In-app purchases:** none


## Frequently asked questions

### Is Rocklahoma free?

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

### Is EV Engine Sound free?

EV Engine Sound costs $1.99, with no in-app purchases.

### Do Rocklahoma or EV Engine Sound have ads?

Neither Rocklahoma nor EV Engine Sound shows ads.

### Which is updated more often, Rocklahoma or EV Engine Sound?

Rocklahoma ships an update every 10 months, and EV Engine Sound every 3 weeks. Most recently, Rocklahoma was updated on November 6, 2026 and EV Engine Sound on November 10, 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.*