# Parallel Chronology vs Epoch

The clearest difference is rating: Epoch at 3.0 against Parallel Chronology's 1.0. Epoch also leads on update cadence (every 5 weeks vs every 5 months) and review sentiment (82% vs 64%). Parallel Chronology's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 26.0). On price, ratings volume, ads and device support there is nothing between them.

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

Epoch holds the better App Store score, 3.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 64% of Parallel Chronology's written reviews are positive against 82% of Epoch's.

Parallel Chronology ships an update every 5 months, Epoch every 5 weeks. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Parallel Chronology | Epoch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/parallel-chronology/id1462606267/reviews) | **[3.0 (1 ratings)](https://appshunter.io/ios/app/epoch-history-notes/id6470111481/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 64.3% of reviews | **81.8% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 14 MB | 4 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Neusara LLC](https://appshunter.io/developer/1462606266) | [Shu Kyogoku](https://appshunter.io/developer/1703508274) |

## 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


### Epoch

[App page](https://appshunter.io/ios/app/epoch-history-notes/id6470111481)

Create interactive timelines to visualize historical events and understand their flow. This app allows for detailed event mapping, filtering, and includes auto-generated practice questions to measure learning outcomes. Users can also share their timelines with others.

**Highlights:** Create interactive timelines, Map events from 100 billion BCE to 9999 CE, Filter events by flags, tags, and time period, Navigate events with horizontal swipes, Toggle year display and flags, Auto-generated practice questions, Share timelines with friends

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro version | $7.99 | one-time |


## Frequently asked questions

### Is Parallel Chronology free?

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

### Is Epoch free?

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

### Which has better reviews, Parallel Chronology or Epoch?

Epoch is rated higher. Parallel Chronology averages 1.0 out of 5 from 1 ratings, while Epoch averages 3.0 from 1 ratings.

### Do Parallel Chronology or Epoch have ads?

Neither Parallel Chronology nor Epoch shows ads.

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

Parallel Chronology ships an update every 5 months, and Epoch every 5 weeks. Most recently, Parallel Chronology was updated on October 7, 2026 and Epoch 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.*