# KnowTree vs Thirds

The clearest difference is rating: Thirds at 5.0 against KnowTree's 4.0. Thirds also leads on ads (none vs shown) and ratings volume (8 vs 1). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. KnowTree sells 1 one-off in-app purchase and Thirds sells 4 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Thirds holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Thirds has 8 ratings behind it against 1, so its average is the more settled of the two.

KnowTree ships an update every 9 days, Thirds every 11 days. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | KnowTree | Thirds |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/knowtree/id6757321205/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/thirds-past-present-future/id6759395771/reviews)** |
| Number of ratings | 1 | **8** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 9 days** | Every 11 days |
| Monetization | — | Free with in-app purchases |
| Size | 51 MB | 50 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ukon Ryohei](https://appshunter.io/developer/1834526187) | [Go Mode LLC](https://appshunter.io/developer/1821035766) |

## What reviewers say

### KnowTree

[App page](https://appshunter.io/ios/app/knowtree/id6757321205)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnowTree Premium | $4.99 | one-time |


### Thirds

[App page](https://appshunter.io/ios/app/thirds-past-present-future/id6759395771)

This app offers a minimalist approach to task management with three distinct lists: Present, Future, and Past. It allows users to input tasks via voice and provides a clear overview of daily progress and upcoming items without overwhelming features.

**Highlights:** Three-list organization (Past, Present, Future), Voice-to-task input, Streak tracking, Minimalist interface, Focus on clarity over complexity

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thirds Pro - Monthly | $4.99 | per month |
| Thirds Pro - Weekly | $4.99 | per 7 days |
| Thirds Pro - Annual | $29.99 | per year |
| Thirds Pro - Lifetime | $59.99 | one-time |


## Frequently asked questions

### Is KnowTree free?

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

### Is Thirds free?

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

### Which has better reviews, KnowTree or Thirds?

Thirds is rated higher. KnowTree averages 4.0 out of 5 from 1 ratings, while Thirds averages 5.0 from 8 ratings.

### Do KnowTree or Thirds have ads?

KnowTree shows ads; Thirds does not.

### Which is updated more often, KnowTree or Thirds?

KnowTree ships an update every 9 days, and Thirds every 11 days. Most recently, KnowTree was updated on October 24, 2026 and Thirds on October 22, 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.*