# Paper Planner Sidekick vs SpillStack

The clearest difference is in-app purchases: SpillStack at none against Paper Planner Sidekick's 1. SpillStack also leads on update cadence (daily vs every 9 days) and iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Paper Planner Sidekick sells 1 one-off in-app purchase. SpillStack asks for nothing beyond the download.

Paper Planner Sidekick ships an update every 9 days, SpillStack daily. Both last shipped on November 5, 2026.

## The numbers

| Metric | Paper Planner Sidekick | SpillStack |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/spillstack/id6755917648/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Daily** |
| Monetization | — | Free |
| Size | 67 MB | 38 MB |
| Requires iOS | 26.0 | **15.1** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [David Collado Sela](https://appshunter.io/developer/1241258594) | [Damian Mathews](https://appshunter.io/developer/1857271679) |

## What reviewers say

### Paper Planner Sidekick

[App page](https://appshunter.io/ios/app/paper-planner-sidekick-numly/id6746696155)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Numly lifetime | $4.99 | one-time |


### SpillStack

[App page](https://appshunter.io/ios/app/spillstack/id6755917648)

Capture and organize all your thoughts, from voice notes to text entries. This AI-powered tool automatically categorizes your input into tasks, ideas, projects, and more, providing summaries and tags for effortless management.

**Highlights:** Capture voice and text input, AI-powered categorization, Automatic summarization, Automated tagging, Organizes into tasks, ideas, projects, learning, research, Cross-device compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Paper Planner Sidekick free?

Paper Planner Sidekick is free to download, with in-app purchases available.

### Is SpillStack free?

SpillStack is free to download, with no in-app purchases.

### Do Paper Planner Sidekick or SpillStack have ads?

Neither Paper Planner Sidekick nor SpillStack shows ads.

### Which is updated more often, Paper Planner Sidekick or SpillStack?

Paper Planner Sidekick ships an update every 9 days, and SpillStack daily. Most recently, Paper Planner Sidekick was updated on November 5, 2026 and SpillStack on November 5, 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.*