# By Design Training vs Zeroing In

The clearest difference is update cadence: Zeroing In at every 3 weeks against By Design Training's every 6 weeks. By Design Training's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

By Design Training ships an update every 6 weeks, Zeroing In every 3 weeks. The most recent releases landed on September 15, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | By Design Training | Zeroing In |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/zeroing-in/id6753683620/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 188 MB | 31 MB |
| Requires iOS | **15.5** | 15.6 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [By Design Physiotherapy PTY LTD](https://appshunter.io/developer/1795760004) | [Zer0 In LLC](https://appshunter.io/developer/1839300747) |

## What reviewers say

### By Design Training

[App page](https://appshunter.io/ios/app/by-design-training/id6741823680)

**Features:** Apple Wallet

**In-app purchases:** none


### Zeroing In

[App page](https://appshunter.io/ios/app/zeroing-in/id6753683620)

Easily book fitness classes and manage your membership from your device. Make reservations, join waitlists, and check your profile status on the go.

**Highlights:** Book fitness classes, Manage membership status, Join waitlists, Check profile, Easy reservations

**In-app purchases:** none


## Frequently asked questions

### Is By Design Training free?

By Design Training is free to download, with no in-app purchases.

### Is Zeroing In free?

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

### Do By Design Training or Zeroing In have ads?

Neither By Design Training nor Zeroing In shows ads.

### Which is updated more often, By Design Training or Zeroing In?

By Design Training ships an update every 6 weeks, and Zeroing In every 3 weeks. Most recently, By Design Training was updated on September 15, 2026 and Zeroing In on June 10, 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.*