Comparison

OpenCat vs MemoRandom

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

OpenCat

This AI utility tool offers seamless integration of advanced AI models into your daily routine on Mac, iPhone, and iPad. It features a user-friendly interface, keyboard extensions for in-app AI access, and Siri/shortcut integration for automation. Supports a wide range of popular AI models and offers team deployment options.

Highlights
  • Support for latest popular AI models
  • Keyboard extensions for in-app AI
  • Realistic voice synthesis
  • Siri and shortcut integration
  • Team deployment with Docker
  • Customizable AI parameters
  • Markdown content rendering
Features
Read full description

Bring AI into every part of your workflow: chat, writing, translation, and search. · Multiple model options — local models, API Key, Cloud subscription, Apple Intelligence · MCP — supports MCP and tool calls · Web search — available on OpenCat Cloud and select providers · System-wide translation — select text in any app for instant AI translation · Content rendering — supports LaTeX formulas, Markdown, and code highlighting · Cross-platform — natively built for Mac, iPhone, and iPad · Data privacy — stored locally, synced across devices via iCloud [Pro Features] · AI Keyboard — invoke AI right in the text field of any app to polish or reply in one step · OpenCat Cloud subscription provides access to all major models [A Variety of Models] · OpenCat Cloud — fast access to leading models · Local models — one-tap download of open-source models for offline use, accelerated by Apple silicon · BYOK — use your own API Key, including Coding Plan · System models — supports Apple Foundation Models [OpenCat Cloud — Ready to Use, No Setup] · No sign-up, zero configuration, all major models supported · 50+ models — ChatGPT, Claude, Gemini, Grok, DeepSeek, GLM, MiniMax, Kimi, Qwen, Doubao, and more, all in one place · Online search supported [System-Level AI Translation] Set OpenCat as your default translation app to translate selected text directly in Safari, Mail, Notes, and any other app. Powered by large language models, translations are natural and fluent — far superior to traditional translation engines. [Local Models, Offline Inference] · One-tap download — popular open-source models like Llama, Qwen, and Gemma · Apple silicon acceleration — built on Apple's official MLX framework, fully leveraging GPU performance for fast, energy-efficient inference · Fully offline — works without internet, conversation data never leaves your device [Use Your Own API Key] · 25+ providers supported — OpenAI, Claude, Gemini, DeepSeek, Kimi, Qwen, Doubao, ERNIE, and more [Contact Us] Email: support@dreamoon.ai Terms of Use https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy & Third-party AI Service Privacy Policy https://opencat.app/privacy

About

MemoRandom

Features
Read full description

MemoRandom is a quiet place to capture ideas, tasks, and passing thoughts before they disappear. Write or speak, add reminders and tags, then let the timeline keep everything easy to find. KEY FEATURES - Fast capture: Write, record voice notes, and create checklists from one place. - Timeline: Browse today, yesterday, this week, and earlier notes with search, filters, archive, and multi-select. - Review: See today’s activity, weekly capture trends, and a random note from the past. - Local first: Keep recording without a connection. Notes stay on your device by default. - Export and backup: Export your notes as Markdown or JSON. - Privacy Lock: Protect local notes with Face ID. - Optional Sync: Sign in with Apple to unlock incremental server sync across your devices. Local notes, reminders, privacy lock, and exports are free. Server and cross-device sync is an optional paid feature. Purchases are handled by the App Store, and Restore Purchases is supported.

Screenshots

OpenCat4 screens
MemoRandom4 screens

Verdict

The call

OpenCat and MemoRandom are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OpenCat sells 4 in-app purchases, starting at $3.99 per month and MemoRandom sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
OpenCat versus MemoRandom: the parameters behind the verdict, then further details
ParameterOpenCatMemoRandom
PriceFreeFree
Rating4.6 (852 ratings) — better—
Positive reviews64.6% of reviews—
Number of ratings852 — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size96 MB2 MB
Age rating17+4+
DeveloperEarly Moon, LLC贺 黄

Bugs and requests

OpenCat

Reported bugs

6 issues
  • Streaming response disruptions
  • Disappearing API key input fields
  • Inconsistent Markdown rendering
  • Keyboard extension not working as expected
  • Sync issues between devices
Show 1 more
  • Crashes and freezes when handling large inputs

Requested features

7 requests
  • Support for more AI models (e.g., Ollama, Groq)
  • Markdown rendering for chat responses
  • Ability to upload images and files
  • Customizable keyboard extensions
  • Background task support for long-running queries
Show 2 more
  • Prompt library and sharing functionality
  • Integration with other productivity apps (e.g., Shortcuts)

MemoRandom

Not enough reviews yet to summarise bugs or requests.

In-app purchases

4 purchases

OpenCat

Subscriptions2
  • Cloud AI3 Days trial$3.991 Month
  • Cloud AI$24.991 Year
One-time2
  • Tokens Package$5.99
  • OpenCat Pro$9.99
1 purchases

MemoRandom

One-time1
  • MemoRandom Pro (Sync)$4.99

Questions

Is OpenCat free?
OpenCat is free to download, with in-app purchases available.
Is MemoRandom free?
MemoRandom is free to download, with in-app purchases available.
Do OpenCat or MemoRandom have ads?
Neither OpenCat nor MemoRandom shows ads.

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