# Atomus HD vs Re

The clearest difference is price: Re at Free against Atomus HD's $3.99. Re also leads on update cadence (weekly vs every 3 months) and review sentiment (100% vs 91%). Atomus HD's advantage is in-app purchases (none vs 3) and ads (none vs shown). On rating there is nothing between them.

Re is free to download; Atomus HD costs $3.99 up front. Re sells 3 in-app purchases, starting at $2.99 per 7 days. Atomus HD asks for nothing beyond the download.

Re holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Atomus HD has 60 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 91% of Atomus HD's written reviews are positive against 100% of Re's.

Atomus HD ships an update every 3 months, Re weekly. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Atomus HD | Re |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.8 (60 ratings)](https://appshunter.io/ios/app/atomus-hd/id741515911/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/revive-ai-memory-chat/id6759059883/reviews)** |
| Number of ratings | **60** | 2 |
| Positive reviews | 90.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 63 MB | 24 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SungLab Inc](https://appshunter.io/developer/1691666995) | [FatTail Labs](https://appshunter.io/developer/1863607812) |

## What reviewers say

### Atomus HD

[App page](https://appshunter.io/ios/app/atomus-hd/id741515911)

Experience a premium kinetic universe of light and motion with dynamic, evolving particle structures. This app offers a richer, more immersive visual experience perfect for creative focus, relaxation, or quiet exploration.

**Highlights:** Evolving light and motion structures, Richer particle density and flow, Smooth 60 FPS rendering, 10-finger multi-touch support, Adjustable particle settings, Multiple color modes, Ad-free experience

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

**In-app purchases:** none

**What reviewers like**

- ✨ Visually stunning graphics
- 🧘‍♀️ Relaxing and calming experience
- 🎨 Creative and mesmerizing visuals
- 🎶 Beautiful and soothing music
- 🎮 Addictive and engaging gameplay

**What reviewers complain about**

- ⏳ Can become boring after a while
- ❓ Lack of user manual/explanations
- 🎶 Music can be repetitive
- 💸 Some users feel it's a waste of money
- 🎛️ Limited customization options

**Reported bugs**

- App crashes with 11 fingers
- Orientation issues on tablets
- Music not working
- Sound stopped working
- App freezes after opening and exiting

**Requested features**

- User manual or explanations
- Ability to customize starting points
- Option to record or save favorite settings
- Ability to take screenshots
- More music tracks/playlists


### Re

[App page](https://appshunter.io/ios/app/revive-ai-memory-chat/id6759059883)

Chat with an AI that mimics the writing style of someone you know, using your actual chat history. Import conversations to capture their words, tone, and personality for a unique AI-powered chat experience. Offers privacy with on-device processing.

**Highlights:** AI style learning from chat history, Memory recall of past conversations, Create AI personas manually, On-device processing for privacy, Customizable chat backgrounds, iCloud backup and sync

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| Yearly Premium | $19.99 | per year |
| Lifetime Pro | $59.99 | one-time |


## Frequently asked questions

### Is Atomus HD free?

Atomus HD costs $3.99, with no in-app purchases.

### Is Re free?

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

### Which has better reviews, Atomus HD or Re?

Re is rated higher. Atomus HD averages 4.8 out of 5 from 60 ratings, while Re averages 5.0 from 2 ratings.

### Do Atomus HD or Re have ads?

Re shows ads; Atomus HD does not.

### Which is updated more often, Atomus HD or Re?

Atomus HD ships an update every 3 months, and Re weekly. Most recently, Atomus HD was updated on October 18, 2026 and Re on October 15, 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.*