# Parallel Chronology vs TimeLine

The clearest difference is in-app purchases: Parallel Chronology at none against TimeLine's 1. Parallel Chronology also leads on ads (none vs shown). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. TimeLine sells 1 one-off in-app purchase. Parallel Chronology asks for nothing beyond the download.

Parallel Chronology ships an update every 5 months, TimeLine every 6 months. The most recent releases landed on October 7, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Parallel Chronology | TimeLine |
| --- | --- | --- |
| 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** | 57.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 83 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Neusara LLC](https://appshunter.io/developer/1462606266) | [Sumie Watanabe](https://appshunter.io/developer/1349237972) |

## What reviewers say

### 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


### TimeLine

[App page](https://appshunter.io/ios/app/timeline/id1577126242)

Create custom historical timelines by inputting categories and events with their dates. Supports events from 3000 BCE to 3000 CE. A simple tool for visualizing historical periods.

**Highlights:** Input custom categories, Input historical events with dates, Supports BCE and CE dates, Visualize historical periods, Create personal timelines

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 歴史年表を作ろう 広告非表示 | $1.99 | one-time |


## Frequently asked questions

### Is Parallel Chronology free?

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

### Is TimeLine free?

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

### Do Parallel Chronology or TimeLine have ads?

TimeLine shows ads; Parallel Chronology does not.

### Which is updated more often, Parallel Chronology or TimeLine?

Parallel Chronology ships an update every 5 months, and TimeLine every 6 months. Most recently, Parallel Chronology was updated on October 7, 2026 and TimeLine on September 17, 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.*