# Jazz Time Trainer vs SessionHost

The clearest difference is ads: Jazz Time Trainer at none against SessionHost's shown. Jazz Time Trainer also leads on iOS requirement (13.0 vs 16.4). SessionHost's advantage is update cadence (every 2 days vs every 4 days). On price, 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.

Jazz Time Trainer ships an update every 4 days, SessionHost every 2 days. The most recent releases landed on October 8, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Jazz Time Trainer | SessionHost |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 4 days | **Every 2 days** |
| Size | 19 MB | 48 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sangwoo Shin](https://appshunter.io/developer/6778440317) | [Ragdoll LLC](https://appshunter.io/developer/541399286) |

## What reviewers say

### Jazz Time Trainer

[App page](https://appshunter.io/ios/app/jazz-time-trainer/id6778440315)

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

**In-app purchases:** none


### SessionHost

[App page](https://appshunter.io/ios/app/sessionhost-jazz-jam-planner/id6809122029)

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

**In-app purchases:** none


## Frequently asked questions

### Is Jazz Time Trainer free?

Jazz Time Trainer is free to download, with no in-app purchases.

### Is SessionHost free?

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

### Do Jazz Time Trainer or SessionHost have ads?

SessionHost shows ads; Jazz Time Trainer does not.

### Which is updated more often, Jazz Time Trainer or SessionHost?

Jazz Time Trainer ships an update every 4 days, and SessionHost every 2 days. Most recently, Jazz Time Trainer was updated on October 8, 2026 and SessionHost on October 18, 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.*