Comparison

BigOit vs Grimo AI

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

Head to head
About

BigOit

Features
Read full description

BigOit is a private AI assistant designed to run entirely on your device. After downloading a model, you can generate answers without an internet connection, account, or sign-in. Your prompts, conversations, dictated speech, and attached photos are processed locally and never sent to an AI server. FEATURES β€’ Choose from Gemma 4 and Qwen 3 on-device models β€’ Ask questions and generate detailed answers offline β€’ Attach photos for private, on-device image understanding β€’ Dictate naturally with automatic spoken-language detection β€’ Receive answers in English, Arabic, German, Spanish, French, Brazilian Portuguese, Japanese, or Simplified Chinese β€’ View programming code in dedicated blocks with a convenient Copy button β€’ Keep encrypted chat history on your device β€’ Search, rename, pin, and automatically delete conversations β€’ Listen to generated answers using text-to-speech β€’ Select from multiple app icons and appearance options β€’ Use a native interface designed for both iPhone and iPad Models are downloaded only when you choose to install them. Model availability depends on your device’s memory.

About

Grimo AI

Features
Read full description

Grimo is the assistant that finally understands the way you actually think β€” talk to it like a person, and it handles the rest. No forms. No dropdowns. No hunting through five different menus to add one appointment. Just say what's on your mind, and Grimo turns it into the right task, event, or note β€” exactly where it belongs. WHAT GRIMO DOES β€’ Chat naturally β€” type or talk, and Grimo figures out whether you're adding a task, booking time on your calendar, or jotting something down to remember later. β€’ Voice mode β€” hold to talk and have a real back-and-forth conversation, hands-free. Perfect for when you're cooking, driving, or just don't feel like typing. β€’ Tasks β€” organized by category and priority, with a swipe to complete or delete. β€’ Calendar β€” a clean month view where every category gets its own color, with distinct shades so overlapping trips, meetings, and appointments never blur together. β€’ Notes β€” quick capture for anything that doesn't need a date attached β€” wifi passwords, ideas, things people tell you. Everything lives in one place, connected by one assistant that understands context across all of it. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

BigOit4 screens
Grimo AI4 screens

Verdict

The call

The clearest difference is in-app purchases: BigOit at none against Grimo AI's 1. BigOit also leads on update cadence (every 2 days vs every 2 weeks). Grimo AI's advantage is iOS requirement (16.4 vs 26.0). On price, ads and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Grimo AI sells 1 in-app purchase, starting at $4.99 per month. BigOit asks for nothing beyond the download.

UpkeepUpdate frequency

BigOit ships an update every 2 days, Grimo AI every 2 weeks. The most recent releases landed on October 28, 2026 and October 9, 2026 respectively.

Scorecard3 real differences Β· 3 level
BigOit versus Grimo AI: the parameters behind the verdict, then further details
ParameterBigOitGrimo AI
PriceFreeFree
Update frequencyEvery 2 days β€” betterEvery 2 weeks
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPad β€” betteriPhone
Requires iOS26.016.4 β€” better
Further details β€” not scored
Size66 MB44 MB
Age rating4+4+
DeveloperMohammed AlblookiDawid Weiss

In-app purchases

None

BigOit

No in-app purchases

1 purchases

Grimo AI

Subscriptions1
  • Premium MiesiΔ™cznie$4.991 Month

Questions

Is BigOit free?
BigOit is free to download, with no in-app purchases.
Is Grimo AI free?
Grimo AI is free to download, with in-app purchases available.
Do BigOit or Grimo AI have ads?
Neither BigOit nor Grimo AI shows ads.
Which is updated more often, BigOit or Grimo AI?
BigOit ships an update every 2 days, and Grimo AI every 2 weeks. Most recently, BigOit was updated on October 28, 2026 and Grimo AI on October 9, 2026.

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