# LyteFast vs TrainNote(トレインノート)筋トレ記録とAIコーチ

The clearest difference is update cadence: TrainNote(トレインノート)筋トレ記録とAIコーチ at every 9 days against LyteFast's every 2 months. LyteFast's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. LyteFast sells 6 in-app purchases, starting at $0.99 per 7 days and TrainNote(トレインノート)筋トレ記録とAIコーチ sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

LyteFast ships an update every 2 months, TrainNote(トレインノート)筋トレ記録とAIコーチ every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | LyteFast | TrainNote(トレインノート)筋トレ記録とAIコーチ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 68 MB | 35 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stephane Sprauer](https://appshunter.io/developer/1843257989) | [naoki shiomichi](https://appshunter.io/developer/1879387430) |

## What reviewers say

### LyteFast

[App page](https://appshunter.io/ios/app/lytefast-weight-loss-tracker/id6753265477)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly premium access | $0.99 | per 7 days |
| Monthly premium access | $2.99 | per month |
| Weekly LyteFast AI Add-On | $4.99 | per 7 days |
| Monthly LyteFast AI Add-On | $14.99 | per month |
| Yearly premium access | $23.99 | per year |
| Yearly LyteFast AI Add-On | $149.99 | per year |


### TrainNote(トレインノート)筋トレ記録とAIコーチ

[App page](https://appshunter.io/ios/app/trainnoteai/id6759539755)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AI Coach Plus | $2.99 | per month |
| 栄養 | $2.99 | per month |
| Plus＋栄養 セット | $3.99 | per month |
| TrainNote Pro | $4.99 | one-time |


## Frequently asked questions

### Is LyteFast free?

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

### Is TrainNote(トレインノート)筋トレ記録とAIコーチ free?

TrainNote(トレインノート)筋トレ記録とAIコーチ is free to download, with in-app purchases available.

### Do LyteFast or TrainNote(トレインノート)筋トレ記録とAIコーチ have ads?

Neither LyteFast nor TrainNote(トレインノート)筋トレ記録とAIコーチ shows ads.

### Which is updated more often, LyteFast or TrainNote(トレインノート)筋トレ記録とAIコーチ?

LyteFast ships an update every 2 months, and TrainNote(トレインノート)筋トレ記録とAIコーチ every 9 days. Most recently, LyteFast was updated on October 24, 2026 and TrainNote(トレインノート)筋トレ記録とAIコーチ on October 24, 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.*