# Deep Time Audio Description vs Smithsonian

The clearest difference is in-app purchases: Deep Time Audio Description at none against Smithsonian's 2. Deep Time Audio Description also leads on update cadence (every 6 days vs every 3 months) and iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Smithsonian sells 2 one-off in-app purchases. Deep Time Audio Description asks for nothing beyond the download.

Deep Time Audio Description ships an update every 6 days, Smithsonian every 3 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Deep Time Audio Description | Smithsonian |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/deep-time-audio-description/id1465972882/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 3 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 43 MB | 285 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Smithsonian Institution](https://appshunter.io/developer/370564865) | [PlayDate Digital Inc.](https://appshunter.io/developer/652113715) |

## What reviewers say

### Deep Time Audio Description

[App page](https://appshunter.io/ios/app/deep-time-audio-description/id1465972882)

Explore the Smithsonian Fossil Hall with a self-guided audio tour designed for blind and low-vision users. Learn about evolution, ecosystems, and the interconnectedness of life from its origins to the Age of Humans. Features include screen reader compatibility, alt text, and zoomable text.

**Highlights:** Screen Reader compatible, Background contrast, Alt text and captions, Zoomable text, Search feature, Audio descriptions of exhibits

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

**In-app purchases:** none


### Smithsonian

[App page](https://appshunter.io/ios/app/smithsonian-planets/id6504839302)

Explore the solar system with interactive games and animations. Learn fascinating facts about planets, moons, and the asteroid belt. Designed for curious young minds to introduce astronomy basics.

**Highlights:** Fascinating facts about the solar system, Mini games like Space Winter Rush, Interactive activities, Educational animations, Read to Me text, Collect planet badges

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |
| Buy 5 Planets | $2.99 | one-time |


## Frequently asked questions

### Is Deep Time Audio Description free?

Deep Time Audio Description is free to download, with no in-app purchases.

### Is Smithsonian free?

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

### Do Deep Time Audio Description or Smithsonian have ads?

Neither Deep Time Audio Description nor Smithsonian shows ads.

### Which is updated more often, Deep Time Audio Description or Smithsonian?

Deep Time Audio Description ships an update every 6 days, and Smithsonian every 3 months. Most recently, Deep Time Audio Description was updated on November 3, 2026 and Smithsonian on November 4, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*