Tabata Timer vs Shiver
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Customizable interval timers
- HIIT and Tabata training support
- Adjustable work and rest times
- Set and cycle configuration
- Interval naming
- Background operation
- Voice cues
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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/
Shiver
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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
Verdict
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
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.
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.
| Parameter | Tabata Timer | Shiver |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (9.2K ratings) — better | — |
| Positive reviews | 98.4% of reviews | — |
| Number of ratings | 9.2K — better | — |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 40 MB | 51 MB |
| Age rating | 4+ | 12+ |
| Developer | Oleksandr Serhiienko | Bogdan 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
Tabata Timer
- Premium$1.491 Month
- Premium$2.993 Months
- Premium$4.496 Months
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- Premium$7.491 Year
- Premium$9.99
Shiver
- Shiver Pro Monthly7 Days trial$4.991 Month
- Shiver Pro Annual7 Days trial$39.991 Year






