# けみ式 Lite vs Parallel Chronology

The clearest difference is ads: Parallel Chronology at none against けみ式 Lite's shown. Parallel Chronology also leads on update cadence (every 5 months vs every 16 months). けみ式 Lite's advantage is iOS requirement (11.0 vs 13.0). On price, 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.

けみ式 Lite ships an update every 16 months, Parallel Chronology every 5 months. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | けみ式 Lite | Parallel Chronology |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.0 (1 ratings)](https://appshunter.io/ios/app/parallel-chronology/id1462606267/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 64.3% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 16 months | **Every 5 months** |
| Monetization | — | Free |
| Size | 4 MB | 14 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Takuya Kawakami](https://appshunter.io/developer/721449462) | [Neusara LLC](https://appshunter.io/developer/1462606266) |

## What reviewers say

### けみ式 Lite

[App page](https://appshunter.io/ios/app/lite/id890330485)

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

**In-app purchases:** none


### Parallel Chronology

[App page](https://appshunter.io/ios/app/parallel-chronology/id1462606267)

Explore historical events and fictional timelines side-by-side. Compare information across different categories and time periods, from the dawn of the universe to the present and beyond. Discover new insights by juxtaposing diverse data points on an infinitely scrolling timeline.

**Highlights:** Side-by-side information display, Story units for comparative analysis, Infinite scroll timeline (99.9 billion BC to 99.9 billion AD), Tool for historical discovery, Supports custom fictional data, Links to Wikipedia for details, Universal device support (iPhone/iPad)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is けみ式 Lite free?

けみ式 Lite is free to download, with no in-app purchases.

### Is Parallel Chronology free?

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

### Do けみ式 Lite or Parallel Chronology have ads?

けみ式 Lite shows ads; Parallel Chronology does not.

### Which is updated more often, けみ式 Lite or Parallel Chronology?

けみ式 Lite ships an update every 16 months, and Parallel Chronology every 5 months. Most recently, けみ式 Lite was updated on October 6, 2026 and Parallel Chronology 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.*