Comparison

Kairos vs Leash Browser

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

Head to head
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.

About

Leash Browser

This utility app acts as a mindful browser, designed to reduce distractions by removing the address bar and favorites. It allows you to open external links and perform web searches while maintaining a focused browsing experience.

Highlights
  • No address bar
  • No favorites
  • Set as default browser
  • Open external links
  • Perform web searches
  • Reduces distractions
Features
Read full description

I made Leash out of my own necessity: For years, I've not only uninstalled social media apps and email from my mobile, I also had disabled my browser – otherwise, it was too tempting to simply distract myself with news sites or access webmail. Some people may have enough willpower to simply not do that, but I need more friction. Enter disabling the browser! Life without a browser is great, as my phone usage drifted towards more creative things: taking photos, capturing thoughts, catching up and a meticulously curated stream of news, via a RSS reader. But then, life comes along, and asks you to scan a QR code to purchase a ticket. Also, when people sent me a website that I should check out, I had to go a lot of extra miles to do that (i.e. adding it to my todo list and checking it at the laptop). Lastly, some things just don't work without a browser, such as signing in for an app that requires you to do the authentication via their website. Oh, and search! I even installed the Wikipedia app to look up things, but it also has limits. So, I decided to make a 'minimal' browser that will keep the friction where it's needed to withstand the sirens of the internets, but be assistive as a browser should be in living a life in 2026. So here comes Leash! It's built to replace your system browser, and it has three major features: - no address bar - no favorites - no color ... but you can register it as the 'default browser' on your system, and so you'll be able to use it to open links that come 'from the outside world' (= friends, QR codes) and also to open a web search from your phone's search bar. I enjoy it a lot, and I hope, you do, too! (If anything goes wrong, please get in touch – I'm actively developing this, and I'd love to learn about things that aren't working well just yet.)

Screenshots

Kairos4 screens
Leash Browser3 screens

Verdict

The call

The clearest difference is price: Kairos at Free against Leash Browser's $1.99. On update cadence, 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

Kairos is free to download; Leash Browser costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Kairos ships an update every 4 days, Leash Browser every 6 days. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.

Scorecard1 real difference · 9 level
Kairos versus Leash Browser: the parameters behind the verdict, then further details
ParameterKairosLeash Browser
PriceFree — better$1.99
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 4 days — betterEvery 6 days
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.115.0 — better
Further details — not scored
Size36 MB23 MB
Age rating4+17+
DeveloperBenno KohrsHemmert UG (haftungsbeschränkt)

In-app purchases

None

Kairos

No in-app purchases

None

Leash Browser

No in-app purchases

Questions

Is Kairos free?
Kairos is free to download, with no in-app purchases.
Is Leash Browser free?
Leash Browser costs $1.99, with no in-app purchases.
Do Kairos or Leash Browser have ads?
Neither Kairos nor Leash Browser shows ads.
Which is updated more often, Kairos or Leash Browser?
Kairos ships an update every 4 days, and Leash Browser every 6 days. Most recently, Kairos was updated on September 15, 2026 and Leash Browser on September 18, 2026.

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