# REBvibe vs Mechanical Components

The clearest difference is in-app purchases: REBvibe at none against Mechanical Components's 4. REBvibe also leads on device support (3 vs 1) and iOS requirement (7.0 vs 17.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Mechanical Components sells 4 in-app purchases, starting at $7.99 per 7 days. REBvibe asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 3.0 for REBvibe against 3.0 for Mechanical Components. Both are backed by a comparable volume of ratings — 2 and 2 respectively.

REBvibe ships an update every 9 months, Mechanical Components every 7 months. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | REBvibe | Mechanical Components |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/rebvibe/id445515440/reviews) | [3.0 (2 ratings)](https://appshunter.io/ios/app/mechanical-components/id6738186476/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 7 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 49 MB |
| Requires iOS | **7.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Motionics LLC](https://appshunter.io/developer/424498959) | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) |

## 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


### Mechanical Components

[App page](https://appshunter.io/ios/app/mechanical-components/id6738186476)

Test your knowledge of mechanical components with interactive quizzes. Features high-quality images, instant feedback, and multiple difficulty levels to help you master engineering parts. Ideal for students, DIY enthusiasts, and professionals.

**Highlights:** Interactive quizzes on mechanical parts, High-quality component images, Instant feedback and facts, Multiple difficulty levels, Learn and master engineering components

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Week | $7.99 | per 7 days |
| Month | $19.99 | per month |
| 6 months | $19.99 | per 6 months |
| Year | $29.99 | per year |


## Frequently asked questions

### Is REBvibe free?

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

### Is Mechanical Components free?

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

### Which has better reviews, REBvibe or Mechanical Components?

REBvibe and Mechanical Components are both rated 3.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do REBvibe or Mechanical Components have ads?

Neither REBvibe nor Mechanical Components shows ads.

### Which is updated more often, REBvibe or Mechanical Components?

REBvibe ships an update every 9 months, and Mechanical Components every 7 months. Most recently, REBvibe was updated on October 14, 2026 and Mechanical Components on October 2, 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.*