# OkOliver vs Cactus

The clearest difference is ads: Cactus at none against OkOliver's shown. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. OkOliver sells 3 in-app purchases, starting at $2.99 per month and Cactus sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for OkOliver against 5.0 for Cactus. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

OkOliver ships an update every 10 days, Cactus weekly. The most recent releases landed on October 7, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | OkOliver | Cactus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/okoliver-ai-memory-assistant/id6502351355/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/cactus-ai-memory-sidekick/id6748361695/reviews) |
| Number of ratings | 2 | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 114 MB | 2 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [OkOliver LLC](https://appshunter.io/developer/1745128249) | [Feidong Song](https://appshunter.io/developer/1792424713) |

## What reviewers say

### OkOliver

[App page](https://appshunter.io/ios/app/okoliver-ai-memory-assistant/id6502351355)

This AI-powered assistant helps you remember important details like tasks, facts, medications, and locations. Simply chat with it to store and retrieve information, reducing your mental load.

**Highlights:** Natural chat-based memory tracking, Medication schedule logging and reminders, Location saving for parked cars, Secure storage for personal notes and codes, Task and event tracking, Location-aware features

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Elite Plan Monthly | $2.99 | per month |
| Ultra Plan Monthly | $7.99 | per month |
| Ultra Plan Yearly | $79.99 | per year |


### 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 |


## Frequently asked questions

### Is OkOliver free?

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

### Is Cactus free?

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

### Which has better reviews, OkOliver or Cactus?

OkOliver and Cactus are both rated 5.0 out of 5 on the App Store, from 2 and 2 ratings respectively.

### Do OkOliver or Cactus have ads?

OkOliver shows ads; Cactus does not.

### Which is updated more often, OkOliver or Cactus?

OkOliver ships an update every 10 days, and Cactus weekly. Most recently, OkOliver was updated on October 7, 2026 and Cactus on October 22, 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.*