# OnceOne vs 橙子计划

The clearest difference is in-app purchases: 橙子计划 at none against OnceOne's 3. 橙子计划 also leads on iOS requirement (13.0 vs 18.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. OnceOne sells 3 in-app purchases, starting at $0.99 per month. 橙子计划 asks for nothing beyond the download.

OnceOne ships an update weekly, 橙子计划 every 4 days. The most recent releases landed on September 5, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | OnceOne | 橙子计划 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Size | 3 MB | 81 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Dongliang Yin](https://appshunter.io/developer/1030365061) | [坤 刘](https://appshunter.io/developer/1818588865) |

## 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 |


### 橙子计划

[App page](https://appshunter.io/ios/app/todo/id6747468968)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OnceOne free?

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

### Is 橙子计划 free?

橙子计划 is free to download, with no in-app purchases.

### Do OnceOne or 橙子计划 have ads?

Neither OnceOne nor 橙子计划 shows ads.

### Which is updated more often, OnceOne or 橙子计划?

OnceOne ships an update weekly, and 橙子计划 every 4 days. Most recently, OnceOne was updated on September 5, 2026 and 橙子计划 on September 14, 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.*