# Tethys Visio vs Memorae

The clearest difference is in-app purchases: Tethys Visio at none against Memorae's 11. Memorae's advantage is update cadence (every 2 weeks vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Memorae sells 11 in-app purchases, starting at $6.99 per month. Tethys Visio asks for nothing beyond the download.

Tethys Visio ships an update monthly, Memorae every 2 weeks. The most recent releases landed on October 14, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Tethys Visio | Memorae |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (37 ratings)](https://appshunter.io/ios/app/memorae/id6756915818/reviews)** |
| Number of ratings | — | **37** |
| Positive reviews | — | 34.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | — | Free |
| Size | 138 MB | 146 MB |
| Requires iOS | 15.0 | 15 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Celec](https://appshunter.io/developer/1634197210) | [Memorae Inc](https://appshunter.io/developer/1863639710) |

## What reviewers say

### Tethys Visio

[App page](https://appshunter.io/ios/app/tethys-visio/id6737887067)

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

**In-app purchases:** none


### Memorae

[App page](https://appshunter.io/ios/app/memorae/id6756915818)

This app helps you offload the mental burden of remembering tasks and details. It acts as a personal memory assistant, storing information and providing timely reminders without overwhelming you. Designed for busy individuals seeking clarity and calm productivity.

**Highlights:** Offload mental load, Personal memory assistant, Timely reminders, Information storage and retrieval, Clear daily overview, Integration with messaging apps

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

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Origin Plan Monthly 30 OFF | $6.99 | per month |
| Origin Plan Monthly | $9.99 | per month |
| 2,000 Energy Monthly | $19.99 | per month |
| Supernova Plan Monthly | $19.99 | per month |
| 5,000 Energy Monthly | $49.99 | per month |
| Origin Plan Yearly | $59.99 | per year |
| Big Bang Plan Monthly | $59.99 | per month |
| Supernova Plan Yearly 25 OFF | $89.99 | per year |
| 10,000 Energy Monthly | $99.99 | per month |
| Supernova Plan Yearly | $119.99 | per year |
| Big Bang Plan Yearly | $359.99 | per year |


## Frequently asked questions

### Is Tethys Visio free?

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

### Is Memorae free?

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

### Do Tethys Visio or Memorae have ads?

Neither Tethys Visio nor Memorae shows ads.

### Which is updated more often, Tethys Visio or Memorae?

Tethys Visio ships an update monthly, and Memorae every 2 weeks. Most recently, Tethys Visio was updated on October 14, 2026 and Memorae on October 28, 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.*