Comparison

Tabata Timer vs Shiver

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

Head to head
About

Tabata Timer

This app provides a versatile interval timer for high-intensity workouts like HIIT and Tabata. Users can create custom routines with adjustable work/rest times, sets, and cycles, and receive voice cues. It functions as a background companion to keep you focused during training.

Highlights
  • Customizable interval timers
  • HIIT and Tabata training support
  • Adjustable work and rest times
  • Set and cycle configuration
  • Interval naming
  • Background operation
  • Voice cues
Features
Read full description

Become better, faster, and stronger — together with Tabata Timer for Workouts! A simple yet powerful HIIT and Tabata timer for cardio, CrossFit, and any high-intensity training. Beginners can start with one tap, while advanced users get full control over every interval. Create custom workouts: adjust work and rest times, sets, and cycles; add interval names, background music, and voice cues. The app runs smoothly in the background, supports vibration, music ducking, and much more. More than just a stopwatch — your personal workout partner that keeps you focused, motivated, and on track anywhere — at home, in the gym, or outdoors. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Shiver

Features
Read full description

Shiver turns cold showers into a graduated challenge instead of a dare. Start warm, ease into a cold finish that grows a little every day, and build a streak — all timed hands-free by a huge, eyes-closed-friendly in-shower clock. No ice bath, no chest freezer, just your own shower. HOW IT WORKS Pick a plan and Shiver tells you exactly what to do that day: how long to stay warm, how long to finish cold, and when each phase changes — announced with haptics and a chime so you never have to open your eyes or step out of the spray to check a clock. SIX GRADUATED PLANS - 14-Day Starter (free) — the beginner ramp: a cold finish that grows from 15 seconds to 90 over two weeks - 30-Day Full Cold — the warm-up shrinks away while the cold grows to a full 4 minutes, fully cold by day 13 - Contrast Protocol — 14 days of hot/cold intervals, always ending cold - 11-Minute Week — four sessions a week totalling 11 cold minutes, with rest days built in - 90-Day Ice Ladder — a slow three-month climb from 30 seconds to 5 minutes of cold, with a weekly rest day through week 12 - The Reset — a 7-day comeback ramp for after a broken streak, from 15 seconds back to 2 fully cold minutes SAFETY FIRST Cold exposure is a real physiological stressor, not a stunt. Before your first session Shiver walks you through the cold-shock response, the conditions worth checking with a doctor about first, and the signs that mean stop right away — written in plain language, never buried, always one tap away in Settings. Shiver only ever measures you against your own past sessions, never against anyone else. TRACK WHAT ACTUALLY HAPPENED A completed session logs itself — duration, cold time, and plan day — then you add how it felt: mood before and after, and a 1-to-5 snowflake cold rating. Watch it build into a streak and a calendar heatmap. EARN BADGES Fourteen achievement badges for showing up — streaks, sessions, cold minutes, plan milestones. Always visible, so every badge is a goal, never a secret. SHIVER PRO The 14-Day Starter, the timer, and your log are free forever. Subscribe to unlock: - All five premium plans — 30-Day Full Cold, Contrast Protocol, 11-Minute Week, 90-Day Ice Ladder, The Reset - Silent breathing prep before the cold — a guided box-breathing pattern, seated, visual and haptic only, never during the shower - Full stats — the weekly cold-minute meter, your mood shift, trends - Retro-log a missed day and repair your streak - CSV export of your whole session log - Unlimited timer presets (free keeps one) - Apple Health sync — completed sessions saved as mindful minutes (write-only, never reads your data) Subscriptions renew automatically unless cancelled at least 24 hours before the period ends. Manage or cancel anytime in your App Store settings. Payment is charged to your Apple ID. Shiver is a habit and timer app, not a medical device. It does not diagnose, treat, or prevent any condition. If you have any concern about whether cold exposure is safe for you, talk to a healthcare professional first. Terms: https://bogtsi.xyz/shiver/terms Privacy: https://bogtsi.xyz/shiver/privacy Fifteen seconds today. A little more tomorrow.

Screenshots

Tabata Timer4 screens
Shiver4 screens

Verdict

The call

The clearest difference is ads: Shiver at none against Tabata Timer's shown. Tabata Timer's advantage is device support (4 vs 1). On price, update cadence, in-app purchases 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. Tabata Timer sells 5 in-app purchases, starting at $1.49 per month and Shiver sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Tabata Timer ships an update every 10 days, Shiver every 3 weeks. The most recent releases landed on October 18, 2026 and October 10, 2026 respectively.

Scorecard2 real differences · 8 level
Tabata Timer versus Shiver: the parameters behind the verdict, then further details
ParameterTabata TimerShiver
PriceFreeFree
Rating4.9 (9.2K ratings) — better—
Positive reviews98.4% of reviews—
Number of ratings9.2K — better—
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone
Requires iOS15.6 — better16.4
Further details — not scored
Size40 MB51 MB
Age rating4+12+
DeveloperOleksandr SerhiienkoBogdan Tsiganiuk

Bugs and requests

Tabata Timer

Reported bugs

3 issues
  • Workouts not saving properly
  • Sync issues between app and Apple Watch
  • Occasional freezing or restarting of device

Requested features

5 requests
  • Ability to name and save more workouts in free version
  • Option to add exercise images or videos
  • Sync workouts across devices
  • Customizable sounds and alerts
  • Workout history and progress tracking

Shiver

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Tabata Timer

Subscriptions4
  • Premium$1.491 Month
  • Premium$2.993 Months
  • Premium$4.496 Months
Show 1 more
  • Premium$7.491 Year
One-time1
  • Premium$9.99
2 purchases

Shiver

Subscriptions2
  • Shiver Pro Monthly7 Days trial$4.991 Month
  • Shiver Pro Annual7 Days trial$39.991 Year

Questions

Is Tabata Timer free?
Tabata Timer is free to download, with in-app purchases available.
Is Shiver free?
Shiver is free to download, with in-app purchases available.
Do Tabata Timer or Shiver have ads?
Tabata Timer shows ads; Shiver does not.
Which is updated more often, Tabata Timer or Shiver?
Tabata Timer ships an update every 10 days, and Shiver every 3 weeks. Most recently, Tabata Timer was updated on October 18, 2026 and Shiver on October 10, 2026.

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