# Sennaby vs TraderMemos

The clearest difference is in-app purchases: TraderMemos at none against Sennaby's 4. TraderMemos also leads on iOS requirement (16.4 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Sennaby sells 4 one-off in-app purchases. TraderMemos asks for nothing beyond the download.

Sennaby ships an update every 4 days, TraderMemos every 5 days. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Sennaby | TraderMemos |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 5 days |
| Size | 63 MB | 61 MB |
| Requires iOS | 18.0 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Po Hung Lai](https://appshunter.io/developer/1867120911) | [Sin Hong KAN](https://appshunter.io/developer/1837615550) |

## What reviewers say

### Sennaby

[App page](https://appshunter.io/ios/app/sennaby/id6757460977)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee | $0.99 | one-time |
| Beer | $2.99 | one-time |
| Pizza | $5.99 | one-time |
| Steak | $9.99 | one-time |


### TraderMemos

[App page](https://appshunter.io/ios/app/tradermemos/id6797427206)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sennaby free?

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

### Is TraderMemos free?

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

### Do Sennaby or TraderMemos have ads?

Neither Sennaby nor TraderMemos shows ads.

### Which is updated more often, Sennaby or TraderMemos?

Sennaby ships an update every 4 days, and TraderMemos every 5 days. Most recently, Sennaby was updated on October 15, 2026 and TraderMemos on October 17, 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.*