# SlipBox vs Day

The clearest difference is price: Day at Free against SlipBox's $0.99. Day also leads on update cadence (every 3 days vs every 3 weeks) and review sentiment (100% vs 90%). SlipBox's advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

Day is free to download; SlipBox costs $0.99 up front. Day sells 3 in-app purchases, starting at $0.99 per month. SlipBox asks for nothing beyond the download.

SlipBox ships an update every 3 weeks, Day every 3 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SlipBox | Day |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/slipbox-zettelkasten-notes/id6743237863/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 90.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 8 MB | 38 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ozlem AKBUDAK](https://appshunter.io/developer/1736380201) | [JinBae Jung](https://appshunter.io/developer/1892955366) |

## What reviewers say

### SlipBox

[App page](https://appshunter.io/ios/app/slipbox-zettelkasten-notes/id6743237863)

This app helps you build a structured web of knowledge using the Zettelkasten method. Its minimalist design and continuous scrolling interface encourage active recall and pattern recognition for deep cognitive work. Your notes are stored locally for privacy.

**Highlights:** Continuous scroll interface, Zettelkasten method implementation, Intentional tagging system, Minimalist design, Privacy-first, local storage

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

**In-app purchases:** none


### Day

[App page](https://appshunter.io/ios/app/day-in/id6780700085)

This app combines habit tracking, to-do lists, mood logging, and calendar management into a single, intuitive planner. Customize your lock screen with daily tasks and habits, and reflect on your day with a unique emotion dot grid. Organize your priorities using the Eisenhower Matrix.

**Highlights:** Lock Screen Wallpaper Studio, Daily Reflection & Emotion Dot Grid, Eisenhower Matrix for To-Dos, Customizable Habit Tracking, Integrated Calendar, Home & Lock Screen Widgets, iCloud Sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Yearly | $6.99 | per year |
| Day In Pro Lifetime | $11.99 | one-time |


## Frequently asked questions

### Is SlipBox free?

SlipBox costs $0.99, with no in-app purchases.

### Is Day free?

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

### Do SlipBox or Day have ads?

Day shows ads; SlipBox does not.

### Which is updated more often, SlipBox or Day?

SlipBox ships an update every 3 weeks, and Day every 3 days. Most recently, SlipBox was updated on October 28, 2026 and Day on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*