Comparison

HIIT Timer vs Shift

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

Head to head
About

HIIT Timer

This interval timer is designed for High Intensity Interval Training (HIIT), warm-ups, and stretches. Easily configure workout, rest, and ready times, along with the number of rounds. The app remembers your settings for future use and offers a dark mode option.

Highlights
  • Customizable workout and rest intervals
  • Configurable number of rounds
  • Pre-workout 'Get Ready' time
  • Alarm notification before interval end
  • Dark mode option
  • Remembers previous settings
Features
Read full description

This app is a simple timer designed for High Intensity Interval Training (HIIT). It is also suitable for warm-ups and stretches. You can easily specify the settings, opt in for the alarm three seconds prior to the end of each part and even switch to dark mode. To use this timer: 1. Tap to configure the following settings: - Get Ready time - Workout time - Rest time - Number of rounds 2. Tap to start 3. Enjoy your workout! Since the timer remembers your previous program settings, you do not need to configure them again for your next workout. Privacy Policy: https://www.vividlytec.com/privacy-policy Terms of Use: https://www.vividlytec.com/terms-of-use

About

Shift

This app provides a straightforward interval timer for workouts, allowing users to easily set up work, rest, and repeat cycles. It offers essential features like voice cues, background timing, and a live activity display, with all workout history saved locally.

Highlights
  • Customizable work, rest, and repeat intervals
  • Voice cues and tone options
  • Background timing
  • Live Activity on Lock Screen/Dynamic Island
  • Workout history saved locally
  • iPhone and iPad support
Features
Read full description

Shift is an interval timer made as simple as possible (but not any simpler). Set up in seconds: • Work • Rest • Repeat How long you exercise – how long you recover – how many rounds. That’s all. Tap Start and Shift takes it from there. Finished workouts stay in History, so your last workout can be your next preset. Load it and go. A few essentials: • Voice cues or simple tones that don’t lower your music • Keeps time in the background • A Live Activity on your Lock Screen and Dynamic Island • A workout display you can turn sideways • Made for iPhone, iPhone Duo and iPad Completely free. No ads, no paywall, no subscriptions. No accounts or tracking. Your workout history stays on your device.

Screenshots

HIIT Timer4 screens
Shift4 screens

Verdict

The call

The clearest difference is review sentiment: Shift at 100% against HIIT Timer's 25%. Shift also leads on rating (5.0 vs 3.0) and ads (none vs shown). HIIT Timer's advantage is iOS requirement (17.6 vs 26). On price, ratings volume, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Shift holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 2 respectively. Written reviews point the same way: 25% of HIIT Timer's written reviews are positive against 100% of Shift's.

UpkeepUpdate frequency

HIIT Timer ships an update every 2 months, Shift every 5 days. The most recent releases landed on November 3, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
HIIT Timer versus Shift: the parameters behind the verdict, then further details
ParameterHIIT TimerShift
PriceFreeFree
Rating3.0 (2 ratings)5.0 (2 ratings) — better
Positive reviews25.0% of reviews100.0% of reviews — better
Number of ratings22
Update frequencyEvery 2 monthsEvery 5 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.6 — better26
Further details — not scored
Size9 MB52 MB
Age rating12+4+
DeveloperVividly Technologies Inc.Jorick van Meijeren

Customer experience

HIIT Timer

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%
Written reviews4 reviews
Positive25.0%
Neutral0.0%
Negative75.0%

Shift

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

HIIT Timer

No in-app purchases

None

Shift

No in-app purchases

Questions

Is HIIT Timer free?
HIIT Timer is free to download, with no in-app purchases.
Is Shift free?
Shift is free to download, with no in-app purchases.
Which has better reviews, HIIT Timer or Shift?
Shift is rated higher. HIIT Timer averages 3.0 out of 5 from 2 ratings, while Shift averages 5.0 from 2 ratings.
Do HIIT Timer or Shift have ads?
HIIT Timer shows ads; Shift does not.
Which is updated more often, HIIT Timer or Shift?
HIIT Timer ships an update every 2 months, and Shift every 5 days. Most recently, HIIT Timer was updated on November 3, 2026 and Shift on November 6, 2026.

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