# Zeta Two vs PlanDay

The clearest difference is iOS requirement: Zeta Two at 17.0 against PlanDay's 26.2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Zeta Two ships an update monthly, PlanDay every 6 weeks. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Zeta Two | PlanDay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/planday/id6762626011/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | — | Free |
| Size | 5 MB | 5 MB |
| Requires iOS | **17.0** | 26.2 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 9+ |
| Developer | [JEREMY OLUOCH MBARARIA](https://appshunter.io/developer/1886222028) | [Sunset Labs, LLC](https://appshunter.io/developer/1444703531) |

## What reviewers say

### Zeta Two

[App page](https://appshunter.io/ios/app/zeta-two-mental-math/id6762595364)

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

**In-app purchases:** none


### PlanDay

[App page](https://appshunter.io/ios/app/planday/id6762626011)

A straightforward daily planner designed for focused task management. Easily organize your day, week, and month with intuitive swiping and task management. Enjoy a clean interface with customizable themes, all without ads or subscriptions.

**Highlights:** Day, week, and month views, Add and check off tasks, Drag and drop tasks to reschedule, iCloud data syncing, Four customizable themes, Instant opening, no login

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

**In-app purchases:** none


## Frequently asked questions

### Is Zeta Two free?

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

### Is PlanDay free?

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

### Do Zeta Two or PlanDay have ads?

Neither Zeta Two nor PlanDay shows ads.

### Which is updated more often, Zeta Two or PlanDay?

Zeta Two ships an update monthly, and PlanDay every 6 weeks. Most recently, Zeta Two was updated on October 6, 2026 and PlanDay on October 7, 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.*