Comparison

K2Sonnet vs Ai

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

Head to head

Private, open source AI Models

Free

📊 Productivity

No ratingsView app →

About

K2Sonnet

Features

Read full description

K2Sonnet, Your Next-Generation Smart Assistant.

About

Ai

Features

Read full description

Unlock the full potential of AI with Private LLM. Connect to your private Gemini server and run large, advanced models with complete privacy and control. Chat, generate content, analyze text, and customize your AI workflow — right from your iPhone or iPad.

Screenshots

K2Sonnet4 screens

Ai2 screens

Verdict

The call

The clearest difference is update cadence: Ai at monthly against K2Sonnet's every 7 months. On price, ads, in-app purchases and device support 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

K2Sonnet ships an update every 7 months, Ai monthly. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

Scorecard1 real difference · 5 level

K2Sonnet versus Ai: the parameters behind the verdict, then further details
Parameter	K2Sonnet	Ai
Price	Free	Free
Update frequency	Every 7 months	Monthly — better
Ads	No	No
In-app purchases	No	No
Devices	iPhone, iPad	iPhone, iPad
Requires iOS	17.6 — better	18.6
Further details — not scored
Size	2 MB	6 MB
Age rating	17+	4+
Developer	Shanghai Jiyue Information Technology Co., Ltd.	Michal Jach