Comparison

HiJavis vs Kairos

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

Head to head
About

HiJavis

This AI-powered voice assistant helps users with various tasks through spoken commands. It offers a hands-free experience for managing your device and accessing information.

Highlights
  • Voice command interaction
  • AI-powered assistance
  • Hands-free operation
  • Device management
  • Information access
Features
Read full description

Javis Personal AI Agents Capture ideas instantly, organize your knowledge into your personal second brain, and connect with AI agents to help you work and think more effectively. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Kairos

Features
Read full description

Most timers tell you exactly when they end. Kairos does not. Set a minimum and maximum duration, start the timer, and Kairos chooses a random moment in between. You know the range. You do not know the exact finish. That simple twist makes Kairos useful anywhere timing should stay unpredictable. USE KAIROS FOR - Meditation: sit without watching the clock - Exercise: hold effort without bracing for the last seconds - Study sessions: add flexible focus or break intervals - Interval training: Auto Repeat randomises every set so you never anticipate the next round - Party games: perfect for Hot Potato, Musical Chairs, and other pass-it-fast games FEATURES - Random timer between your chosen minimum and maximum - Clean countdown interface designed for iPhone - Hide Time Display for a more focused, less predictable experience - Auto Repeat, Overtime, and Auto Stop modes after the timer ends - Label your timers for quick recognition in Recents - Choice of built-in alarm sounds - Haptic feedback when time is up - Recents for quickly restarting favorite timer setups - Light, Dark, and System theme - No ads or sign-up required Kairos is built for the moments when exact timing gets in the way and a little uncertainty makes the experience better.

Screenshots

HiJavis4 screens
Kairos4 screens

Verdict

The call

The clearest difference is iOS requirement: Kairos at 15.1 against HiJavis's 17.0. On price, update cadence, ads and in-app purchases 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

HiJavis ships an update weekly, Kairos every 4 days. The most recent releases landed on September 14, 2026 and September 15, 2026 respectively.

Scorecard1 real difference · 9 level
HiJavis versus Kairos: the parameters behind the verdict, then further details
ParameterHiJavisKairos
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyWeeklyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size309 MB36 MB
Age rating4+4+
DeveloperDeepShare Inc.Benno Kohrs

In-app purchases

None

HiJavis

No in-app purchases

None

Kairos

No in-app purchases

Questions

Is HiJavis free?
HiJavis is free to download, with no in-app purchases.
Is Kairos free?
Kairos is free to download, with no in-app purchases.
Do HiJavis or Kairos have ads?
Neither HiJavis nor Kairos shows ads.
Which is updated more often, HiJavis or Kairos?
HiJavis ships an update weekly, and Kairos every 4 days. Most recently, HiJavis was updated on September 14, 2026 and Kairos on September 15, 2026.

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