# lineupCalcRF vs SplitFlap Display

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

Both are free to download. SplitFlap Display sells 4 in-app purchases, starting at $0.99 per 7 days. lineupCalcRF asks for nothing beyond the download.

lineupCalcRF ships an update every 9 days, SplitFlap Display every 3 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | lineupCalcRF | SplitFlap Display |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lineupcalcrf/id6737461042/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Free | — |
| Size | 3 MB | 50 MB |
| Requires iOS | **18.0** | 18.6 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [DirectRF](https://appshunter.io/developer/1572692412) | [Thomas Richardson](https://appshunter.io/developer/1887851473) |

## What reviewers say

### lineupCalcRF

[App page](https://appshunter.io/ios/app/lineupcalcrf/id6737461042)

Design RF transmitter systems with ease. This tool links all system-level power amplifier parameters, allowing instant visualization of changes to the overall transmitter lineup. Share your designs via clipboard copy.

**Highlights:** System level power amplifier parameter linking, Instant change effect visualization, Gain, efficiency, DC power, and output power calculations, Clipboard copy for sharing, Effortless RF system design

**Features:** macOS Compatibility

**In-app purchases:** none


### SplitFlap Display

[App page](https://appshunter.io/ios/app/splitflap-display/id6761390167)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SplitFlap Weekly | $0.99 | per 7 days |
| SplitFlap Monthly | $2.49 | per month |
| SplitFlap Yearly | $24.99 | per year |
| SplitFlap Lifetime | $49.99 | one-time |


## Frequently asked questions

### Is lineupCalcRF free?

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

### Is SplitFlap Display free?

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

### Do lineupCalcRF or SplitFlap Display have ads?

Neither lineupCalcRF nor SplitFlap Display shows ads.

### Which is updated more often, lineupCalcRF or SplitFlap Display?

lineupCalcRF ships an update every 9 days, and SplitFlap Display every 3 weeks. Most recently, lineupCalcRF was updated on October 30, 2026 and SplitFlap Display on October 31, 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.*