# Threadmap vs K37 Simple Flows

Threadmap and K37 Simple Flows are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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. Threadmap sells 2 in-app purchases, starting at $1.99 per month and K37 Simple Flows sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Threadmap | K37 Simple Flows |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 4 MB | 4 MB |
| Requires iOS | 18.0 | **17.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kanchalika Kongyong](https://appshunter.io/developer/1883480594) | [K37 Software LLC](https://appshunter.io/developer/1886297629) |

## What reviewers say

### Threadmap

[App page](https://appshunter.io/ios/app/threadmap-mind-maps-and-collab/id6761523525)

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BrainWeave Pro — Monthly | $1.99 | per month |
| BrainWeave Pro — Yearly | $14.99 | per year |


### K37 Simple Flows

[App page](https://appshunter.io/ios/app/k37-simple-flows/id6800538438)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple Flows Full Unlock | $2.99 | one-time |


## Frequently asked questions

### Is Threadmap free?

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

### Is K37 Simple Flows free?

K37 Simple Flows is free to download, with in-app purchases available.

### Do Threadmap or K37 Simple Flows have ads?

Neither Threadmap nor K37 Simple Flows shows ads.

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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.*