# Liquid Apollo vs HemiSync

The clearest difference is in-app purchases: Liquid Apollo at none against HemiSync's 1. Liquid Apollo also leads on ratings volume (649 vs 9) and rating (4.5 vs 4.2). HemiSync's advantage is review sentiment (100% vs 69%). On price, ads and iOS requirement there is nothing between them.

Both are free to download. HemiSync sells 1 in-app purchase, starting at $0.99 per month. Liquid Apollo asks for nothing beyond the download.

Liquid Apollo holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Liquid Apollo has 649 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 69% of Liquid Apollo's written reviews are positive against 100% of HemiSync's, so the app with the better star average is not the one people write more warmly about.

Liquid Apollo ships an update every 10 days, HemiSync every 5 weeks. The most recent releases landed on October 5, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Liquid Apollo | HemiSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (649 ratings)](https://appshunter.io/ios/app/liquid-apollo/id6448019325/reviews)** | [4.2 (9 ratings)](https://appshunter.io/ios/app/hemisync/id6751762821/reviews) |
| Number of ratings | **649** | 9 |
| Positive reviews | 68.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 5 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 162 MB | 61 MB |
| Requires iOS | **18.0** | 18.4 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Liquid AI, Inc.](https://appshunter.io/developer/1772686878) | [EngineZero](https://appshunter.io/developer/1573141529) |

## What reviewers say

### Liquid Apollo

[App page](https://appshunter.io/ios/app/liquid-apollo/id6448019325)

Access a wide range of AI language models, both locally on your device and through cloud APIs. This app allows you to chat with open-source models, connect to your own hosted LLMs, or utilize services like OpenRouter for broad model access.

**Highlights:** Local LLM support, OpenRouter integration, Custom backend connections, Private AI chat, Access to open-source models, Connect to hosted LLMs

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Great app
- 🚀 Works well with OpenRouter
- 🚀 Excellent for running local models
- 🚀 Convenient one-time purchase
- 🚀 Clean and intuitive UI

**What reviewers complain about**

- 🐛 Crashes frequently
- 🐛 Glitches when editing messages
- 🐛 Inconsistent message formatting
- 🐛 Slow performance with larger conversations
- 🔒 Unable to disable app transport security

**Reported bugs**

- Unable to download Liquid Models
- Deleted locally installed models
- OpenRouter support crashes the app
- Voice list doesn't load all available voices
- Backspace lag leading to unintended text deletion

**Requested features**

- Add support for more open-source models (e.g. Gemma 3)
- Implement image generation and upload functionality
- Allow scheduling of asynchronous tasks
- Integrate with Hugging Face model repository
- Provide built-in prompt library


### HemiSync

[App page](https://appshunter.io/ios/app/hemisync/id6751762821)

This app generates binaural beats and isochronic tones to aid in meditation and relaxation. Explore various sound frequencies and pre-set combinations for personal wellness routines, with customizable timers and controls.

**Highlights:** Binaural beat and isochronic tone generation, Customizable frequency ranges (Delta, Theta, Alpha, Beta, Gamma), Pre-configured audio presets, Session timer functionality, Solfeggio frequency options

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per month |


## Frequently asked questions

### Is Liquid Apollo free?

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

### Is HemiSync free?

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

### Which has better reviews, Liquid Apollo or HemiSync?

Liquid Apollo is rated higher. Liquid Apollo averages 4.5 out of 5 from 649 ratings, while HemiSync averages 4.2 from 9 ratings.

### Do Liquid Apollo or HemiSync have ads?

Neither Liquid Apollo nor HemiSync shows ads.

### Which is updated more often, Liquid Apollo or HemiSync?

Liquid Apollo ships an update every 10 days, and HemiSync every 5 weeks. Most recently, Liquid Apollo was updated on October 5, 2026 and HemiSync on September 29, 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.*