# simREF vs TubeTuner for YouTube

The clearest difference is price: simREF at Free against TubeTuner for YouTube's $1.99. TubeTuner for YouTube's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On ads there is nothing between them.

simREF is free to download; TubeTuner for YouTube costs $1.99 up front. simREF sells 2 one-off in-app purchases. TubeTuner for YouTube asks for nothing beyond the download.

## The numbers

| Metric | simREF | TubeTuner for YouTube |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/simref/id6753267206/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 10 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 148 MB | 2 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Chris-Luca Fischer](https://appshunter.io/developer/1843257076) | [Masaki Kobayashi](https://appshunter.io/developer/1882180437) |

## What reviewers say

### simREF

[App page](https://appshunter.io/ios/app/simref/id6753267206)

This app provides quick-reference checklists and operational data for flight simulation on iPad. It features interactive normal and abnormal checklists, essential flight data, and a CG/Trim calculator for takeoff planning in a distraction-free, dark UI optimized for cockpit environments.

**Highlights:** Interactive Normal & Abnormal Checklists, Operational Data at a glance, CG/Trim calculator, Offline functionality, Dark UI for cockpit environments, iPad landscape optimized

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| IndiGo Virtual Integration | $2.99 | one-time |
| simREF Full Access | $8.99 | one-time |


### TubeTuner for YouTube

[App page](https://appshunter.io/ios/app/tubetuner-for-youtube/id6784021943)

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

**In-app purchases:** none


## Frequently asked questions

### Is simREF free?

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

### Is TubeTuner for YouTube free?

TubeTuner for YouTube costs $1.99, with no in-app purchases.

### Do simREF or TubeTuner for YouTube have ads?

Neither simREF nor TubeTuner for YouTube shows ads.

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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.*