Comparison

Vector Space AI vs Foundation

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

Head to head

Unlimited Private AI

On-Device AI Chat

★ 1.01 ratingsView app →

About

Vector Space AI

This app offers a fast, private AI companion that runs locally on your device, providing instant responses for writing, brainstorming, and coding. It also allows seamless switching to cloud-based AI for more advanced queries.

Highlights

Runs locally on device
Optional ChatGPT API connection
Modern and clean interface
Instant response times
Complete user data privacy
Seamless mode switching

Features

Read full description

Chat with FREE, FAST and POWERFUL AI that runs LOCALLY on your iPhone Meet your new AI companion that’s always available — no cloud, no lag, just pure speed. Our advanced local AI engine runs directly on your iPhone, giving you instant responses, full privacy, and offline intelligence. Whether you’re writing, brainstorming, translating, or coding — everything happens right on your device. And when you want to connect to the cloud, simply switch to ChatGPT API mode for even more powerful, up-to-date answers. Key Features: - Runs Locally — Experience lightning-fast chat without internet or server delay. - Optionally, Connect to by ChatGPT API — Access the world’s smartest AI whenever you want. - Beautiful Modern Design — A clean, elegant interface built for clarity and focus. - Instant Responses — No waiting. No spinning wheels. Just smooth conversation. - Completely Private — Your data stays on your device. Nothing leaves your phone. - Seamless Mode Switching — Toggle between local AI and ChatGPT in one tap. Why You’ll Love It: Because it’s your AI — fast, powerful, private, and beautifully crafted. Talk, create, think, and explore ideas anywhere — even offline. Download now and experience the future of AI — FAST. PRIVATE. BEAUTIFUL. LOCAL.

About

Foundation

Engage in intelligent, private AI conversations that run entirely on your device. No internet or data collection required, offering instant responses and multiple conversation threads for various tasks.

Highlights

100% on-device AI processing
Zero data collection
Works offline
Multiple conversation threads
Clean SwiftUI interface
Unlimited chat sessions

Features

Read full description

FoundationChat: Intelligent Conversations, Completely Private Experience AI without compromising your privacy. FoundationChat runs entirely on your iPhone or iPad—no internet required, no data sent to servers. Uses Apple’s on-device Intelligence or Cactus open models. PRIVACY FIRST 100% on-device processing—no ChatGPT, OpenAI, or third-party AI Zero data collection—conversations never leave your device No account, login, or tracking FEATURES Natural conversation powered by on-device AI Context-aware responses Multiple conversation threads Clean SwiftUI interface Works offline with instant responses Unlimited chat sessions REQUIREMENTS iOS 26.0 or later Apple Intelligence: iPhone 15 Pro+, iPhone 16+, or iPad with M1+ (enable in Settings) Cactus: iPhone 13 Pro and other devices with 4GB+ RAM (download a model in-app) WHY FOUNDATIONCHAT? Unlike cloud-based chatbots, FoundationChat keeps everything local. Your questions and conversations stay on your device. Ideal for brainstorming, writing help, learning, and any task where privacy matters. Download FoundationChat for truly private AI conversations.

Screenshots

Vector Space AI3 screens

Foundation3 screens

Verdict

The call

The clearest difference is review sentiment: Vector Space AI at 100% against Foundation's 0%. Vector Space AI also leads on update cadence (every 4 days vs every 4 weeks) and iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Vector Space AI ships an update every 4 days, Foundation every 4 weeks. The most recent releases landed on October 8, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level

Vector Space AI versus Foundation: the parameters behind the verdict, then further details
Parameter	Vector Space AI	Foundation
Price	Free	Free
Rating	—	1.0 (1 ratings) — better
Positive reviews	100.0% of reviews — better	0.0% of reviews
Number of ratings	—	1 — better
Update frequency	Every 4 days — better	Every 4 weeks
Ads	No	No
In-app purchases	No	No
Monetization	Free	Free
Devices	iPhone, iPad	iPhone, iPad
Requires iOS	18.0 — better	26.0
Further details — not scored
Size	34 MB	8 MB
Age rating	4+	4+
Developer	Voila Tech K.K	Sagar Desai

Customer experience

Vector Space AI

Written reviews1 reviews

Positive100.0%

Neutral0.0%

Negative0.0%

Foundation

Written reviews1 reviews

Positive0.0%

Neutral0.0%

Negative100.0%

In-app purchases

None

Vector Space AI

No in-app purchases

None

Foundation

No in-app purchases

Questions

Is Vector Space AI free?

Vector Space AI is free to download, with no in-app purchases.

Is Foundation free?

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

Do Vector Space AI or Foundation have ads?

Neither Vector Space AI nor Foundation shows ads.

Which is updated more often, Vector Space AI or Foundation?

Vector Space AI ships an update every 4 days, and Foundation every 4 weeks. Most recently, Vector Space AI was updated on October 8, 2026 and Foundation on October 16, 2026.