# Hydra vs Previously On AI

The clearest difference is in-app purchases: Previously On AI at none against Hydra's 5. Previously On AI also leads on rating (5.0 vs 4.8). Hydra's advantage is ratings volume (814 vs 1) and chart position (#195 vs unranked). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Hydra sells 5 in-app purchases, starting at $2.99 per month. Previously On AI asks for nothing beyond the download.

Previously On AI holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Hydra has 814 ratings behind it against 1, so its average is the more settled of the two.

Hydra ships an update every 3 weeks, Previously On AI every 5 weeks. The most recent releases landed on November 4, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Hydra | Previously On AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (814 ratings)](https://appshunter.io/ios/app/hydra-read-upvote-comment/id6478089063/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/previously-on-ai/id6758878049/reviews)** |
| Number of ratings | **814** | 1 |
| Positive reviews | 75.2% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#195** | — |
| Size | 79 MB | 1 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Dimitrie Milinovich](https://appshunter.io/developer/1637204263) | [Via Labs](https://appshunter.io/developer/1871743977) |

## What reviewers say

### Hydra

[App page](https://appshunter.io/ios/app/hydra-read-upvote-comment/id6478089063)

**Currently charting:** #195 Top Free · News (US App Store)

This app offers a fast, fluid, and seamless browsing experience for subreddits, designed with a native iOS aesthetic. It provides powerful features for both casual and dedicated users, enhancing media viewing and interaction with content.

**Highlights:** Lightning-fast loading, Multireddit support, Favorite subreddits, Native iOS design, Image and video viewer, Multiple account support, Quick access gestures

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hydra Pro | $2.99 | per month |
| Nice Tip | $1.99 | one-time |
| Generous Tip | $4.99 | one-time |
| Amazing Tip | $9.99 | one-time |
| Incredible Tip | $19.99 | one-time |

**What reviewers like**

- 🚀 Massive potential
- 👍 Closest thing to Apollo
- 👍 Best option for 2025
- 👍 Better in almost every way
- 👍 Superior Reddit Client++

**What reviewers complain about**

- 🔒 Sketchy security

**Reported bugs**

- Expect some bumps

**Requested features**

- Customizing the gestures and hiding the username on the tab bar
- Content blocking, comment images, startup feed, and others


### Previously On AI

[App page](https://appshunter.io/ios/app/previously-on-ai/id6758878049)

Stay informed about rapid AI advancements with a daily briefing that synthesizes key developments, their significance, and future implications. Explore detailed insights into AI labs, platforms, and research, and save important takeaways for future reference.

**Highlights:** Daily AI development briefing, AI lab tracking, Trend and source analysis, Save key insights, Source-linked coverage, Digest notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is Hydra free?

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

### Is Previously On AI free?

Previously On AI is free to download, with no in-app purchases.

### Which has better reviews, Hydra or Previously On AI?

Previously On AI is rated higher. Hydra averages 4.8 out of 5 from 814 ratings, while Previously On AI averages 5.0 from 1 ratings.

### Do Hydra or Previously On AI have ads?

Neither Hydra nor Previously On AI shows ads.

### Which is updated more often, Hydra or Previously On AI?

Hydra ships an update every 3 weeks, and Previously On AI every 5 weeks. Most recently, Hydra was updated on November 4, 2026 and Previously On AI on October 31, 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.*