# OnceOne vs Thoughts!

The clearest difference is iOS requirement: OnceOne at 18.0 against Thoughts!'s 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. OnceOne sells 3 in-app purchases, starting at $0.99 per month and Thoughts! sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

OnceOne ships an update weekly, Thoughts! every 4 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | OnceOne | Thoughts! |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Size | 3 MB | 53 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dongliang Yin](https://appshunter.io/developer/1030365061) | [Seongjae Kim](https://appshunter.io/developer/6783318248) |

## What reviewers say

### OnceOne

[App page](https://appshunter.io/ios/app/onceone-grouping-to-do-tasks/id6744550176)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro(Monthly) | $0.99 | per month |
| Pro(Annual) | $9.99 | per year |
| Pro(Lifetime) | $24.99 | one-time |


### Thoughts!

[App page](https://appshunter.io/ios/app/thoughts-idea-organizer/id6783318246)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thoughts! Pro | $1.99 | per month |
| Thoughts! Pro | $12.99 | per year |


## Frequently asked questions

### Is OnceOne free?

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

### Is Thoughts! free?

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

### Do OnceOne or Thoughts! have ads?

Neither OnceOne nor Thoughts! shows ads.

### Which is updated more often, OnceOne or Thoughts!?

OnceOne ships an update weekly, and Thoughts! every 4 days. Most recently, OnceOne was updated on October 28, 2026 and Thoughts! on October 25, 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.*