# Letter Tracking System vs MindNote

The clearest difference is update cadence: MindNote at fortnightly against Letter Tracking System's every 11 months. Letter Tracking System's advantage is iOS requirement (14.0 vs 17.6). On price, ads, 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.

Letter Tracking System ships an update every 11 months, MindNote fortnightly. The most recent releases landed on September 26, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Letter Tracking System | MindNote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/mindnote-efficient-mind-map/id6767537782/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Fortnightly** |
| Monetization | — | Free |
| Size | 47 MB | 6 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [GCCloud Info System Private Limited](https://appshunter.io/developer/1559340757) | [Zhaoyuan Chen](https://appshunter.io/developer/1896484382) |

## What reviewers say

### Letter Tracking System

[App page](https://appshunter.io/ios/app/letter-tracking-system/id6743742291)

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

**In-app purchases:** none


### MindNote

[App page](https://appshunter.io/ios/app/mindnote-efficient-mind-map/id6767537782)

Visually organize your thoughts and ideas with this intuitive mind mapping application. Create unlimited colorful maps, manage them with folders, and export your work in various formats. Features include auto-layout, outline view, and citation management.

**Highlights:** Unlimited mind map creation, Folder organization, Auto-layout for tidy maps, Outline view, Export to PDF/Markdown, Footnote citation management, iCloud sync

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Letter Tracking System free?

Letter Tracking System is free to download, with no in-app purchases.

### Is MindNote free?

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

### Do Letter Tracking System or MindNote have ads?

Neither Letter Tracking System nor MindNote shows ads.

### Which is updated more often, Letter Tracking System or MindNote?

Letter Tracking System ships an update every 11 months, and MindNote fortnightly. Most recently, Letter Tracking System was updated on September 26, 2026 and MindNote on October 2, 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.*