# REBvibe vs CARLA

The clearest difference is update cadence: CARLA at every 4 months against REBvibe's every 9 months. REBvibe's advantage is iOS requirement (7.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

REBvibe ships an update every 9 months, CARLA every 4 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | REBvibe | CARLA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/rebvibe/id445515440/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 6 MB | 1 MB |
| Requires iOS | **7.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [Motionics LLC](https://appshunter.io/developer/424498959) | [eSystems GmbH](https://appshunter.io/developer/1709505515) |

## What reviewers say

### REBvibe

[App page](https://appshunter.io/ios/app/rebvibe/id445515440)

This application calculates fundamental vibration frequencies for rolling element bearings. Users can input bearing geometry or model numbers to determine various frequencies like BPFI, BPFO, BSF, and FTF. Results are provided in both CPM and Hz, with options for selection via a manufacturing database or direct geometry input.

**Highlights:** Calculates BPFI, BPFO, BSF, and FTF, Results in CPM and Hz, Bearing selection by geometry, Bearing selection by model number, Uses bearing manufacturing database

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

**In-app purchases:** none


### CARLA

[App page](https://appshunter.io/ios/app/carla-cool-ar-learning-app/id6468081226)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is REBvibe free?

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

### Is CARLA free?

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

### Do REBvibe or CARLA have ads?

Neither REBvibe nor CARLA shows ads.

### Which is updated more often, REBvibe or CARLA?

REBvibe ships an update every 9 months, and CARLA every 4 months. Most recently, REBvibe was updated on October 29, 2026 and CARLA on October 25, 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.*