# Tobu vs Wing Loading Calculator

The clearest difference is in-app purchases: Wing Loading Calculator at none against Tobu's 4. Wing Loading Calculator also leads on ads (none vs shown) and update cadence (every 2 days vs every 3 weeks). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tobu sells 4 in-app purchases, starting at $4.99 per month. Wing Loading Calculator asks for nothing beyond the download.

Tobu ships an update every 3 weeks, Wing Loading Calculator every 2 days. The most recent releases landed on October 7, 2026 and June 2, 2026 respectively.

## The numbers

| Metric | Tobu | Wing Loading Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/tobu-skydiving-logbook/id6443548654/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 41 MB | 2 MB |
| Requires iOS | **16.0** | 17.6 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Nso Limited](https://appshunter.io/developer/1647052245) | [Robin Clohessy](https://appshunter.io/developer/1844735526) |

## What reviewers say

### Tobu

[App page](https://appshunter.io/ios/app/tobu-skydiving-logbook/id6443548654)

This app helps skydivers track their jumps with automatic data calculation and flight trajectory recording. It offers a career summary and allows for adding gear, DZs, and digital signatures. Export your data to CSV for analysis and progress tracking.

**Highlights:** USPA logging compliance, Automatic jump data calculation, Flight trajectory recording, Gear and DZ logging, Digital signatures, Career summary, CSV data export

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Early Bird - Premium Monthly | $4.99 | per month |
| Premium Monthly | $8.99 | per month |
| Early Bird - Premium Annual | $42.99 | per year |
| Premium Monthly | $89.99 | per year |


### Wing Loading Calculator

[App page](https://appshunter.io/ios/app/wing-loading-calculator/id6753731920)

**In-app purchases:** none


## Frequently asked questions

### Is Tobu free?

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

### Is Wing Loading Calculator free?

Wing Loading Calculator is free to download, with no in-app purchases.

### Do Tobu or Wing Loading Calculator have ads?

Tobu shows ads; Wing Loading Calculator does not.

### Which is updated more often, Tobu or Wing Loading Calculator?

Tobu ships an update every 3 weeks, and Wing Loading Calculator every 2 days. Most recently, Tobu was updated on October 7, 2026 and Wing Loading Calculator on June 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.*