# Epoch vs HelixPlot

The clearest difference is in-app purchases: HelixPlot at none against Epoch's 1. HelixPlot also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

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

Epoch ships an update every 5 weeks, HelixPlot fortnightly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Epoch | HelixPlot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/epoch-history-notes/id6470111481/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 81.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 4 MB | 12 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shu Kyogoku](https://appshunter.io/developer/1703508274) | [Yonghun Kim](https://appshunter.io/developer/1851972427) |

## What reviewers say

### 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 |


### HelixPlot

[App page](https://appshunter.io/ios/app/helixplot/id6757285741)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Epoch free?

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

### Is HelixPlot free?

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

### Do Epoch or HelixPlot have ads?

Neither Epoch nor HelixPlot shows ads.

### Which is updated more often, Epoch or HelixPlot?

Epoch ships an update every 5 weeks, and HelixPlot fortnightly. Most recently, Epoch was updated on October 24, 2026 and HelixPlot on October 28, 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.*