# Cactus - AI memory sidekick — AI that helps you remember.

> AI assistant for natural language task management and idea capture. (iPhone/iPad app by Feidong Song.)

- Source: https://appshunter.io/ios/app/cactus-ai-memory-sidekick/id6748361695 (this page in markdown: same URL + `.md`)
- Developer: [Feidong Song](https://appshunter.io/developer/1792424713)
- Category: Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 2 MB
- Languages: English
- Released: 2025-07-15
- Data updated: 2026-07-24
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/cactus-ai-memory-sidekick/id6748361695/reviews.md

## What is Cactus?

Cactus is an AI memory sidekick for the tasks, dates, promises, and personal details you do not want to forget.

Press the microphone and speak naturally. Cactus can save a reminder, organize a task, remember an important detail, and help you prepare before something is due.

SPEAK IT. CACTUS SAVES IT.

• Save reminders and important details by voice
• Turn plans and deadlines into organized tasks
• Find tasks by today, tomorrow, next week, next month, or later
• Ask Cactus about information you previously saved
• Type instead whenever speaking is not convenient

PREPARE BEFORE IT BECOMES URGENT

Cactus can suggest a useful next step when preparation would genuinely help. Mention an upcoming birthday, for example, and Cactus may offer to create a task for choosing a gift. Routine reminders stay simple.

YOUR DAY, ORGANIZED

Review tasks, calendar plans, and saved memories in one place. Cactus helps you see what is due now and what is coming next.

PRIVATE ICLOUD SYNC

Your Cactus archive is stored on your devices and mirrored through your private iCloud account so it can stay in sync across your Apple devices. Cactus does not use a public or shared memory database. Voice and message content is sent securely to the AI service when needed to transcribe speech or provide a response.

Cactus Premium includes a 7-day free trial, followed by a recurring subscription. Your exact local price and renewal terms are shown before purchase.

Terms of Use: https://cactus-site.vercel.app/terms
Privacy Policy: https://cactus-site.vercel.app/privacy

## Key features

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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium plan. | $4.99 | per month |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/cactus-ai-memory-sidekick/id6748361695/reviews.md

### 5/5 — Really useful

*2026-07-15*

Connect to external apps very easily!

## Frequently asked questions about Cactus

### What is Cactus?

Cactus is an AI-powered assistant designed to help you manage your day, capture ideas, and organize tasks. It uses natural language processing and voice input to streamline your workflow.

### What devices does Cactus support?

Cactus is available on iPhone and iPad, offering a seamless experience across Apple devices.

### What is the age rating for Cactus?

Cactus has an age rating of 4+, making it suitable for a wide range of users.

### How often is Cactus updated?

The latest version, 1.1, was released on July 16, 2025, indicating recent development and ongoing support.

### Does Cactus have ads?

No, Cactus does not contain advertisements, providing an uninterrupted user experience.

### What are the subscription options for Cactus?

Cactus offers a Premium plan at $4.99 per month, providing enhanced features and capabilities for users who need more advanced functionality.

### How does Cactus handle user data privacy?

Cactus utilizes secure cloud sync to protect your data. Specific details regarding data handling can be found in the Apple App Store's legal section.

### What makes Cactus's AI unique?

Cactus's AI is designed to understand you naturally, adapting to your needs for a more intuitive and personalized productivity experience.

## Version history (last 4 releases)

### 1.3 — 2026-07-22

Cactus now makes reminders easier to capture and review, with clearer task organization, private iCloud sync across your Apple devices, and more focused voice-first interactions.

### 1.2 — 2026-07-14

Cactus has been rebuilt around voice.

• A redesigned voice-first interface
• Live waveform feedback while you speak
• Local-first storage for memories and tasks
• Replies that follow your device language
• A cleaner floating input dock with optional typing
• Reliability and accessibility improvements

### 1.1 — 2025-07-16

Bug fixes.

### 1.0 — 2025-07-15

No release notes.

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## More apps by Feidong Song

- [Focuser - Become more focused.](https://appshunter.io/ios/app/focuser-become-more-focused/id6745225799)

All apps by Feidong Song: https://appshunter.io/developer/1792424713

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-24.*