# iRotorBalancer vs Shaft Alignment Tool TKSA 11

The clearest difference is price: Shaft Alignment Tool TKSA 11 at Free against iRotorBalancer's $799.99. Shaft Alignment Tool TKSA 11 also leads on in-app purchases (none vs 2) and ratings volume (4 vs 1). iRotorBalancer's advantage is rating (5.0 vs 4.3) and iOS requirement (11.0 vs 16.0). On update cadence, ads and device support there is nothing between them.

Shaft Alignment Tool TKSA 11 is free to download; iRotorBalancer costs $799.99 up front. iRotorBalancer sells 2 one-off in-app purchases. Shaft Alignment Tool TKSA 11 asks for nothing beyond the download.

iRotorBalancer holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

iRotorBalancer ships an update every 2 months, Shaft Alignment Tool TKSA 11 every 4 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | iRotorBalancer | Shaft Alignment Tool TKSA 11 |
| --- | --- | --- |
| Price | $799.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/irotorbalancer/id523471219/reviews)** | [4.3 (4 ratings)](https://appshunter.io/ios/app/shaft-alignment-tool-tksa-11/id838116389/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | **Free** |
| Size | 18 MB | 77 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | iPad | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Motionics LLC](https://appshunter.io/developer/424498959) | [SKF](https://appshunter.io/developer/472922971) |

## What reviewers say

### iRotorBalancer

[App page](https://appshunter.io/ios/app/irotorbalancer/id523471219)

This technical tool assists in balancing rotating machinery using single or two-plane methods. It connects to external hardware to measure vibration amplitude and phase, then calculates necessary correction weights and their positions. Reports can be generated and emailed.

**Highlights:** Single-plane balancing (Vector & Four-Runs methods), Two-plane balancing (Influence Coefficients), Real-time waveform and FFT spectrum display, Automatic 1X peak amplitude and phase selection, Polar plot and weight location graphics, Report generation with plots, data, and images

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Custom Report Header and Logo | $49.99 | one-time |
| Two-Plane Overhung Rotor Balancing | $249.99 | one-time |


### Shaft Alignment Tool TKSA 11

[App page](https://appshunter.io/ios/app/shaft-alignment-tool-tksa-11/id838116389)

This tool simplifies shaft alignment for rotating machinery using wireless communication with dedicated hardware. It offers a demonstration mode to experience the full process without the physical device, generating automatic reports and providing visual guidance.

**Highlights:** Wireless Bluetooth communication, Demonstration mode, Automatic alignment reports, Explanatory videos, 3D animations, Combined 2D/3D alignment view

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iRotorBalancer free?

iRotorBalancer costs $799.99, and also offers in-app purchases.

### Is Shaft Alignment Tool TKSA 11 free?

Shaft Alignment Tool TKSA 11 is free to download, with no in-app purchases.

### Which has better reviews, iRotorBalancer or Shaft Alignment Tool TKSA 11?

iRotorBalancer is rated higher. iRotorBalancer averages 5.0 out of 5 from 1 ratings, while Shaft Alignment Tool TKSA 11 averages 4.3 from 4 ratings.

### Do iRotorBalancer or Shaft Alignment Tool TKSA 11 have ads?

Neither iRotorBalancer nor Shaft Alignment Tool TKSA 11 shows ads.

### Which is updated more often, iRotorBalancer or Shaft Alignment Tool TKSA 11?

iRotorBalancer ships an update every 2 months, and Shaft Alignment Tool TKSA 11 every 4 months. Most recently, iRotorBalancer was updated on November 1, 2026 and Shaft Alignment Tool TKSA 11 on November 1, 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.*