# Cactus vs Grace.ai

The clearest difference is in-app purchases: Grace.ai at none against Cactus's 2. Cactus's advantage is device support (3 vs 1). On price, update cadence, ads and iOS requirement there is nothing between them.

Both are free to download. Cactus sells 2 in-app purchases, starting at $14.99 per month. Grace.ai asks for nothing beyond the download.

Cactus ships an update weekly, Grace.ai every 6 days. The most recent releases landed on October 22, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Cactus | Grace.ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cactus-ai-memory-sidekick/id6748361695/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Weekly | **Every 6 days** |
| Monetization | Freemium | — |
| Size | 2 MB | 854 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Feidong Song](https://appshunter.io/developer/1792424713) | [Rodrigo Prokopowicz](https://appshunter.io/developer/1805197888) |

## What reviewers say

### Cactus

[App page](https://appshunter.io/ios/app/cactus-ai-memory-sidekick/id6748361695)

An AI-powered assistant designed to help you manage your day, capture ideas, and organize tasks. It offers natural language interaction, voice input, and secure cloud synchronization for seamless productivity.

**Highlights:** AI-powered assistant, Natural language interaction, Voice capture for ideas, Task organization, Schedule management, Secure cloud sync

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium plan. | $14.99 | per month |
| Cactus Premium Annual | $59.99 | per year |


### Grace.ai

[App page](https://appshunter.io/ios/app/graceai/id6754788472)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Cactus free?

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

### Is Grace.ai free?

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

### Do Cactus or Grace.ai have ads?

Neither Cactus nor Grace.ai shows ads.

### Which is updated more often, Cactus or Grace.ai?

Cactus ships an update weekly, and Grace.ai every 6 days. Most recently, Cactus was updated on October 22, 2026 and Grace.ai on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*