# PIU STEP RMD vs Airtime Coaster Tracker

The clearest difference is rating: PIU STEP RMD at 5.0 against Airtime Coaster Tracker's 4.3. PIU STEP RMD also leads on in-app purchases (none vs 1) and device support (3 vs 1). Airtime Coaster Tracker's advantage is ads (none vs shown) and review sentiment (75% vs 50%). On price and update cadence there is nothing between them.

Both are free to download. Airtime Coaster Tracker sells 1 one-off in-app purchase. PIU STEP RMD asks for nothing beyond the download.

PIU STEP RMD holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: Airtime Coaster Tracker has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 50% of PIU STEP RMD's written reviews are positive against 75% of Airtime Coaster Tracker's, so the app with the better star average is not the one people write more warmly about.

PIU STEP RMD ships an update weekly, Airtime Coaster Tracker every 4 days. The most recent releases landed on October 3, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | PIU STEP RMD | Airtime Coaster Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/piu-step-rmd/id1531443740/reviews)** | [4.3 (11 ratings)](https://appshunter.io/ios/app/airtime-coaster-tracker/id6785657913/reviews) |
| Number of ratings | 1 | **11** |
| Positive reviews | 50.0% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 37 MB | 4 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Lee Seung-woo](https://appshunter.io/developer/684670817) | [LEAO TYLER DE PINA](https://appshunter.io/developer/1871295909) |

## What reviewers say

### PIU STEP RMD

[App page](https://appshunter.io/ios/app/piu-step-rmd/id1531443740)

This app helps users find and search for stepcharts for the arcade rhythm game Pump It Up. It functions as a recommendation and search tool, not the game itself, allowing users to filter stepchart information.

**Highlights:** Stepchart recommendation, Stepchart search, User-selected filters, Pump It Up arcade game support, Stepchart information

**In-app purchases:** none


### Airtime Coaster Tracker

[App page](https://appshunter.io/ios/app/airtime-coaster-tracker/id6785657913)

Log roller coasters ridden, create a wishlist of desired rides, and rank them. Access a global database of coasters with detailed stats and unlock achievements. Sync data across devices or use offline.

**Highlights:** Log coasters with ratings and notes, Build and manage a coaster wishlist, Personalized coaster rankings, Access global coaster rankings, Searchable coaster database with stats, Unlock achievements, Cross-device sync and offline mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Airtime Full Access | $1.99 | one-time |


## Frequently asked questions

### Is PIU STEP RMD free?

PIU STEP RMD is free to download, with no in-app purchases.

### Is Airtime Coaster Tracker free?

Airtime Coaster Tracker is free to download, with in-app purchases available.

### Which has better reviews, PIU STEP RMD or Airtime Coaster Tracker?

PIU STEP RMD is rated higher. PIU STEP RMD averages 5.0 out of 5 from 1 ratings, while Airtime Coaster Tracker averages 4.3 from 11 ratings.

### Do PIU STEP RMD or Airtime Coaster Tracker have ads?

PIU STEP RMD shows ads; Airtime Coaster Tracker does not.

### Which is updated more often, PIU STEP RMD or Airtime Coaster Tracker?

PIU STEP RMD ships an update weekly, and Airtime Coaster Tracker every 4 days. Most recently, PIU STEP RMD was updated on October 3, 2026 and Airtime Coaster Tracker on September 21, 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.*