# Sebast vs Truly Simple Timeline

The clearest difference is in-app purchases: Sebast at none against Truly Simple Timeline's 1. Sebast also leads on iOS requirement (15.1 vs 17.0). Truly Simple Timeline's advantage is update cadence (fortnightly vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Truly Simple Timeline sells 1 one-off in-app purchase. Sebast asks for nothing beyond the download.

Sebast ships an update every 2 months, Truly Simple Timeline fortnightly. The most recent releases landed on October 5, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Sebast | Truly Simple Timeline |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (4 ratings)](https://appshunter.io/ios/app/truly-simple-timeline/id6747322531/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 44 MB | 2 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Top Coaching Inc.](https://appshunter.io/developer/1745110529) | [Colin Wright](https://appshunter.io/developer/1814828139) |

## What reviewers say

### Sebast

[App page](https://appshunter.io/ios/app/sebast/id6502347497)

**Features:** macOS Compatibility

**In-app purchases:** none


### Truly Simple Timeline

[App page](https://appshunter.io/ios/app/truly-simple-timeline/id6747322531)

Build and visualize narrative arcs, story beats, and character involvement across novels or any project. Its drag-and-drop interface supports various event types and date spans, with cross-device functionality for easy planning and adjustments.

**Highlights:** Drag-and-drop interface, Narrative arc and story beat tracking, Single-date and duration events, BC/AD date support, Vertical and horizontal modes, Cross-device functionality

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro | $4.99 | one-time |


## Frequently asked questions

### Is Sebast free?

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

### Is Truly Simple Timeline free?

Truly Simple Timeline is free to download, with in-app purchases available.

### Do Sebast or Truly Simple Timeline have ads?

Neither Sebast nor Truly Simple Timeline shows ads.

### Which is updated more often, Sebast or Truly Simple Timeline?

Sebast ships an update every 2 months, and Truly Simple Timeline fortnightly. Most recently, Sebast was updated on October 5, 2026 and Truly Simple Timeline 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.*