Comparison

HIIT Interval Timer vs Kiimra

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

Head to head
About

HIIT Interval Timer

This app provides a flexible interval timer for high-intensity training. Customize workout cycles, rest periods, and receive color, voice, and sound navigation cues. It runs in the background and offers a built-in music player.

Highlights
  • Customizable interval and rest times
  • Background and screen-locked operation
  • Color, voice, and sound navigation
  • Built-in music player
  • Create and manage custom timers
  • Multiple themes
Features
Read full description

Run in foreground, background and screen locked, the HIIT app allows you to specify an overall time as well as program High/Low intensity interval and rest time between cycles. + Flexible and Advanced Timer + Clean, simple and easy to use (There is no learning curve here) + Create your own timers with some taps + Create fully customized timers with a complex of cycles and sets, + Run in the background, foreground, screen locked + Color, Voice and Sound Navigations (Customizable) + Built in Music Player (in sync with iOS Music Player) + Multiple themes to select + Manage your timers and data of training (you can even delete unwanted timer or junk data) + Create your own alarms right in the app + Work on iPhone, iPad and iPod + And a lot more features will be added in over time. How to use this app: There is no user manual here! -> Download it -> tap on play button -> you will see -> It’s super easy

About

Kiimra

Features
Read full description

Your last fitness app made you fill out a form. Kiimra just wants to talk. Meet Marcus and Sofia — personal AI trainers powered by one of the most advanced conversational AI models available. No onboarding quiz, no dropdown menus deciding your fate. Just tell them what's going on, and they take it from there. You: "MY SHOULDER'S BEEN TIGHT." Trainer: "Skip overhead press today. Rows and face pulls instead. I'll update your plan." That's an actual exchange with Marcus. Your trainer remembers your injuries, your schedule, your bad weeks — so you never explain yourself twice. A REAL PLAN, NOT A PDF! Say which gym you train at. A complete multi-week mesocycle appears — tracked day by day, rewritten around what you actually finish, not what a template assumed you would. SEND A PHOTO. GET A REACTION. Your form at the squat rack. Your plate at a restaurant. Your progress in the mirror. Snap it, send it — your trainer sees what's really happening and responds like a coach standing next to you would. YOUR DIET COACH LIVES HERE TOO Same app, same intelligence, separate chat. Log meals, hit your macros, cook with actual context — Sofia or Marcus already know what you're training for. PICK YOUR CORNER • Marcus — Strength & Hypertrophy. Direct, technical, allergic to excuses. • Sofia — Nutrition & Wellbeing. Warm, sharp, zero judgment. HOW IT GOES 1. Say hi. Your trainer already knows your goals. 2. A multi-week plan lands in your calendar — no setup screens. 3. Train, rate it, repeat. Every session shapes next week's plan. WHAT IT COSTS 7 days free, no card needed. After that: • Standard — €6.99/month (€69/year) • Premium — €12.99/month (€129/year) — unlimited messages, full access Subscription auto-renews; cancel anytime in your App Store account settings. Kiimra doesn't replace medical advice. Talk to a doctor before starting a new training or diet program. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

HIIT Interval Timer4 screens
Kiimra4 screens

Verdict

The call

The clearest difference is in-app purchases: Kiimra at none against HIIT Interval Timer's 1. Kiimra also leads on ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price, device support and iOS requirement 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. HIIT Interval Timer sells 1 one-off in-app purchase. Kiimra asks for nothing beyond the download.

UpkeepUpdate frequency

HIIT Interval Timer ships an update every 5 months, Kiimra every 2 months. Both last shipped on October 8, 2026.

Scorecard3 real differences · 7 level
HIIT Interval Timer versus Kiimra: the parameters behind the verdict, then further details
ParameterHIIT Interval TimerKiimra
PriceFreeFree
Rating4.2 (102 ratings) — better—
Positive reviews52.6% of reviews—
Number of ratings102 — better—
Update frequencyEvery 5 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.6
Further details — not scored
Size10 MB86 MB
Age rating4+17+
DeveloperThang NguyenLukasz Wrona

In-app purchases

1 purchases

HIIT Interval Timer

One-time1
  • Pro Upgrade$4.99
None

Kiimra

No in-app purchases

Questions

Is HIIT Interval Timer free?
HIIT Interval Timer is free to download, with in-app purchases available.
Is Kiimra free?
Kiimra is free to download, with no in-app purchases.
Do HIIT Interval Timer or Kiimra have ads?
HIIT Interval Timer shows ads; Kiimra does not.
Which is updated more often, HIIT Interval Timer or Kiimra?
HIIT Interval Timer ships an update every 5 months, and Kiimra every 2 months. Most recently, HIIT Interval Timer was updated on October 8, 2026 and Kiimra on October 8, 2026.

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