# Bustafit vs Kaizer for Coaches

Bustafit and Kaizer for Coaches are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

Bustafit ships an update fortnightly, Kaizer for Coaches weekly. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Bustafit | Kaizer for Coaches |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/bustafit-hypertrophy-tracker/id6786376034/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Weekly** |
| Monetization | Free | — |
| Size | 17 MB | 71 MB |
| Requires iOS | **15.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Monica Andrea Luna Pinilla](https://appshunter.io/developer/6786376036) | [KAIZER](https://appshunter.io/developer/1828054877) |

## What reviewers say

### Bustafit

[App page](https://appshunter.io/ios/app/bustafit-hypertrophy-tracker/id6786376034)

This app helps you maximize hypertrophy training by logging weights, reps, and RIR. It provides practical load and rep recommendations for progressive overload and connects you with your online coach for personalized guidance.

**Highlights:** Log weights, reps, and RIR, Get load and rep recommendations, Connect with online coach, Follow structured routines, AI-assisted video technique review, Track rest with timers, Log nutrition and macros

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

**In-app purchases:** none


### Kaizer for Coaches

[App page](https://appshunter.io/ios/app/kaizer-for-coaches/id6786909231)

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

**In-app purchases:** none


## Frequently asked questions

### Is Bustafit free?

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

### Is Kaizer for Coaches free?

Kaizer for Coaches is free to download, with no in-app purchases.

### Do Bustafit or Kaizer for Coaches have ads?

Neither Bustafit nor Kaizer for Coaches shows ads.

### Which is updated more often, Bustafit or Kaizer for Coaches?

Bustafit ships an update fortnightly, and Kaizer for Coaches weekly. Most recently, Bustafit was updated on October 10, 2026 and Kaizer for Coaches on October 6, 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.*