# Depth Estimation vs Fish Audio

The clearest difference is in-app purchases: Depth Estimation at none against Fish Audio's 4. Fish Audio's advantage is ads (none vs shown) and update cadence (every 6 days vs fortnightly). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Fish Audio sells 4 in-app purchases, starting at $14.99 per month. Depth Estimation asks for nothing beyond the download.

Depth Estimation ships an update fortnightly, Fish Audio every 6 days. The most recent releases landed on October 1, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Depth Estimation | Fish Audio |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (566 ratings)](https://appshunter.io/ios/app/fish-audio/id6789369290/reviews)** |
| Number of ratings | — | **566** |
| Positive reviews | — | 70.2% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Best chart rank | — | **#111** |
| Size | 84 MB | 82 MB |
| Requires iOS | 17.7.2 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 12+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Hanabi AI Inc.](https://appshunter.io/developer/1792678545) |

## What reviewers say

### Depth Estimation

[App page](https://appshunter.io/ios/app/depth-estimation/id6511209698)

**Features:** macOS Compatibility

**In-app purchases:** none


### Fish Audio

[App page](https://appshunter.io/ios/app/fish-audio/id6789369290)

**Currently charting:** #111 Top Free · Utilities (US App Store)

Transform text into natural-sounding speech using expressive AI voices. Generate audio for videos, podcasts, audiobooks, and stories. Customize voice delivery with tone and emotion, then save or share your creations.

**Highlights:** Natural-sounding AI voices, Customizable tone and emotion, Create audio for videos and podcasts, Save and share audio projects, Multiple expressive voices

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus Monthly | $14.99 | per month |
| Plus Annual | $131.99 | per year |
| 1,000,000 Credits | $44.90 | one-time |
| 2,500,000 Credits | $229.99 | one-time |


## Frequently asked questions

### Is Depth Estimation free?

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

### Is Fish Audio free?

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

### Do Depth Estimation or Fish Audio have ads?

Depth Estimation shows ads; Fish Audio does not.

### Which is updated more often, Depth Estimation or Fish Audio?

Depth Estimation ships an update fortnightly, and Fish Audio every 6 days. Most recently, Depth Estimation was updated on October 1, 2026 and Fish Audio on October 12, 2026.

---

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