# Ultradian vs Elysium Productivity

The clearest difference is in-app purchases: Ultradian at none against Elysium Productivity's 8. Elysium Productivity's advantage is update cadence (every 2 weeks vs every 5 months) and device support (4 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Elysium Productivity sells 8 in-app purchases, starting at $5.00 per month. Ultradian asks for nothing beyond the download.

Ultradian ships an update every 5 months, Elysium Productivity every 2 weeks. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Ultradian | Elysium Productivity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (4 ratings)](https://appshunter.io/ios/app/ultradian/id1482130799/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 7 MB | 50 MB |
| Requires iOS | **17.5** | 18.5 |
| Devices | iPhone | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Katherine Gratale](https://appshunter.io/developer/1482130798) | [Ryan Russell](https://appshunter.io/developer/1859533716) |

## What reviewers say

### Ultradian

[App page](https://appshunter.io/ios/app/ultradian/id1482130799)

Leverage your natural energy cycles for optimal task management and rest. This app analyzes biometric data to predict your ultradian rhythms, helping you schedule demanding activities during peak energy and breaks when needed.

**Highlights:** Analyze biometric data, Predict ultradian rhythms, Schedule peak task times, Schedule rest breaks, Connects to Apple Health

**Features:** macOS Compatibility

**In-app purchases:** none


### Elysium Productivity

[App page](https://appshunter.io/ios/app/elysium-productivity/id6756250191)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic (Monthly) | $5.00 | per month |
| AI (Monthly) | $6.00 | per month |
| Basic + AI (Monthly) | $10.00 | per month |
| Pro (Monthly) | $20.00 | per month |
| Basic (Annual) | $50.00 | per year |
| AI (Annual) | $60.00 | per year |
| Basic + AI (Annual) | $100.00 | per year |
| Pro (Annual) | $200.00 | per year |


## Frequently asked questions

### Is Ultradian free?

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

### Is Elysium Productivity free?

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

### Do Ultradian or Elysium Productivity have ads?

Neither Ultradian nor Elysium Productivity shows ads.

### Which is updated more often, Ultradian or Elysium Productivity?

Ultradian ships an update every 5 months, and Elysium Productivity every 2 weeks. Most recently, Ultradian was updated on November 3, 2026 and Elysium Productivity on October 30, 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.*