# HOLLY vs Serendipity Planner

The clearest difference is update cadence: Serendipity Planner at every 3 weeks against HOLLY's every 41 months. HOLLY's advantage is iOS requirement (8.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

HOLLY ships an update every 41 months, Serendipity Planner every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | HOLLY | Serendipity Planner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 41 months | **Every 3 weeks** |
| Size | 4 MB | 5 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [yoshinori masumura](https://appshunter.io/developer/1517794207) | [Ken Miyamura](https://appshunter.io/developer/1883569594) |

## What reviewers say

### HOLLY

[App page](https://appshunter.io/ios/app/holly/id1518182571)

**Features:** macOS Compatibility

**In-app purchases:** none


### Serendipity Planner

[App page](https://appshunter.io/ios/app/serendipity-planner/id6760272817)

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

**In-app purchases:** none


## Frequently asked questions

### Is HOLLY free?

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

### Is Serendipity Planner free?

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

### Do HOLLY or Serendipity Planner have ads?

Neither HOLLY nor Serendipity Planner shows ads.

### Which is updated more often, HOLLY or Serendipity Planner?

HOLLY ships an update every 41 months, and Serendipity Planner every 3 weeks. Most recently, HOLLY was updated on October 25, 2026 and Serendipity Planner on October 24, 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.*