# SOULFIT vs BookClass for Instructors

The clearest difference is update cadence: BookClass for Instructors at every 10 days against SOULFIT's every 3 weeks. 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.

SOULFIT ships an update every 3 weeks, BookClass for Instructors every 10 days. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | SOULFIT | BookClass for Instructors |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 10 days** |
| Size | 63 MB | 33 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [INDIGY PUBLIC COMPANY LIMITED](https://appshunter.io/developer/1560931855) | [OLA DELIVERY (THAILAND) COMPANY LIMITED](https://appshunter.io/developer/1764313543) |

## What reviewers say

### SOULFIT

[App page](https://appshunter.io/ios/app/soulfit/id6737543629)

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

**In-app purchases:** none


### BookClass for Instructors

[App page](https://appshunter.io/ios/app/bookclass-for-instructors/id6740872132)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SOULFIT free?

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

### Is BookClass for Instructors free?

BookClass for Instructors is free to download, with no in-app purchases.

### Do SOULFIT or BookClass for Instructors have ads?

Neither SOULFIT nor BookClass for Instructors shows ads.

### Which is updated more often, SOULFIT or BookClass for Instructors?

SOULFIT ships an update every 3 weeks, and BookClass for Instructors every 10 days. Most recently, SOULFIT was updated on October 5, 2026 and BookClass for Instructors 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.*