# CalcFormula vs RVLock Keyless

The clearest difference is in-app purchases: RVLock Keyless at none against CalcFormula's 1. RVLock Keyless also leads on iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. CalcFormula sells 1 one-off in-app purchase. RVLock Keyless asks for nothing beyond the download.

## The numbers

| Metric | CalcFormula | RVLock Keyless |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.8 (5 ratings)](https://appshunter.io/ios/app/rvlock-keyless/id1515500690/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Monetization | — | Free |
| Size | 16 MB | 34 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [仲达 夏](https://appshunter.io/developer/1436433399) | [RVLock & Co LLC](https://appshunter.io/developer/1505739920) |

## What reviewers say

### CalcFormula

[App page](https://appshunter.io/ios/app/calcformula/id1436433400)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalcFormula PRO | $0.99 | one-time |


### RVLock Keyless

[App page](https://appshunter.io/ios/app/rvlock-keyless/id1515500690)

This app allows you to unlock your RV or travel trailer using your smartphone. It connects to a keyless RVLock system, offering a convenient alternative to traditional keys. Manage your RV's access with your phone, FOB, or keypad.

**Highlights:** Unlock RV with smartphone, Connects to keyless RVLock, Use FOB, keypad, or smartphone, Replaces traditional keys, BT Pro+ upgrade integration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CalcFormula free?

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

### Is RVLock Keyless free?

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

### Do CalcFormula or RVLock Keyless have ads?

Neither CalcFormula nor RVLock Keyless 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.*