# Clef Trainer Grid vs Complex Vector Calc

The clearest difference is price: Complex Vector Calc at Free against Clef Trainer Grid's $2.99. Clef Trainer Grid's advantage is chart position (#168 vs unranked) and device support. On in-app purchases there is nothing between them.

Complex Vector Calc is free to download; Clef Trainer Grid costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Clef Trainer Grid | Complex Vector Calc |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (12 ratings)](https://appshunter.io/ios/app/clef-trainer-grid/id6749281721/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | Daily | — |
| Monetization | Paid | — |
| Best chart rank | **#168** | — |
| Size | 3 MB | 16 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 4+ | 4+ |
| Developer | [John Andersen](https://appshunter.io/developer/1829819109) | [Donnie Herman](https://appshunter.io/developer/837266303) |

## What reviewers say

### Clef Trainer Grid

[App page](https://appshunter.io/ios/app/clef-trainer-grid/id6749281721)

**Currently charting:** #168 Top Paid · Education (US App Store)

Master sheet music reading across multiple clefs. Practice note input via touch, MIDI keyboard, or microphone. Features a unique grid input to ensure genuine learning, not just muscle memory.

**Highlights:** Treble, alto, and bass clef support, Major and minor key signature support, Accidental support, Adjustable ledger lines, Grid input for muscle memory prevention, MIDI keyboard and microphone input, Cheat Mode for real-time note names

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

**In-app purchases:** none


### Complex Vector Calc

[App page](https://appshunter.io/ios/app/complex-vector-calc-lite/id6760274300)

**In-app purchases:** none


## Frequently asked questions

### Is Clef Trainer Grid free?

Clef Trainer Grid costs $2.99, with no in-app purchases.

### Is Complex Vector Calc free?

Complex Vector Calc is free to download, with no in-app purchases.

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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.*