# Plan Builder vs Day Stacks

The clearest difference is iOS requirement: Plan Builder at 15.6 against Day Stacks's 18.6. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Plan Builder sells 1 in-app purchase, starting at $1.99 per month and Day Stacks sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Plan Builder ships an update every 9 days, Day Stacks every 10 days. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Plan Builder | Day Stacks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 9 days** | Every 10 days |
| Size | 78 MB | 7 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jiyeon Lee](https://appshunter.io/developer/1530250004) | [kazuki oshino](https://appshunter.io/developer/1588828820) |

## What reviewers say

### Plan Builder

[App page](https://appshunter.io/ios/app/plan-builder-mandalarttodo/id1641606151)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium Subscription | $1.99 | per month |


### Day Stacks

[App page](https://appshunter.io/ios/app/day-stacks/id6757662611)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is Plan Builder free?

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

### Is Day Stacks free?

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

### Do Plan Builder or Day Stacks have ads?

Both Plan Builder and Day Stacks show ads.

### Which is updated more often, Plan Builder or Day Stacks?

Plan Builder ships an update every 9 days, and Day Stacks every 10 days. Most recently, Plan Builder was updated on October 11, 2026 and Day Stacks on October 10, 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.*