Comparison

Interval Timer vs StrengthTempo

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

Head to head
About

Interval Timer

This app is a versatile interval timer designed for various training styles like Tabata and HIIT. It offers customizable workout parameters, voice guidance, and music ducking for an enhanced training experience. Save your custom workouts and track your progress.

Highlights
  • Customizable interval settings
  • Voice assistant with text-to-speech
  • Music ducking for audio integration
  • Save custom workouts
  • Tabata, Rounds, Stopwatch modes
  • Apple Health integration
Features
Read full description

Special timer for interval training. This Interval Timer offers: • Very intuitive interface. After installing this timer you need to press one button to start a tabata workout with classic settings. • Ability to set up prepare, work, rest, rest between sets, cool down time, number of cycles and sets. • Intervals can be configured individually. With this interval training timer you can create any interval workout with any sequence of intervals. • Voice assistant with text-to-speech. • Add descriptions to intervals that will be displayed on the timer screen and will be voiced. • Bright and nice colors. • Ability to lower the volume in your music player while playing the timer sounds (ducking). • List of your saved workouts. • NEW! Quick workout - setup your workout with fast and ease. The opportunity to display mode: - Tabata Protocol. - Rounds. - Stopwatch. - Intervals. Tabata is a form of high-intensity interval training (HIIT): • Workout hard for 20 seconds • Rest for 10 seconds • Complete 8 rounds It's time to train, good luck! Application supports Apple Health to track activity during workout. You can download the app for free. Further use requires a subscription. At our discretion, we may decide to offer you a free trial per the terms displayed in the app. Please note that: When opting for a subscription, you pay the fixed price for your country, which is displayed in the app. Payment will be charged to your Apple ID Account upon confirmation of purchase. Subscription automatically renews and free trial automatically converts into subscription unless auto-renewal is turned off at least 24 hours before the end of the current period. Your Account will be charged for renewal within 24 hours prior to the end of the current subscription period. You can manage your subscriptions and turn off auto-renewal by going to Account Settings after purchase. When canceling a subscription or a free trial, your subscription/free trial will stay active until the end of the current period. Auto-renewal will be disabled, but the current subscription will not be refunded. Terms of Use and Privacy Policy: https://docs.google.com/document/d/1FMzBsd_mSO69xuzkpOKljPPtxRMWMTzt2iGs6wJIhik

About

StrengthTempo

Features
Read full description

StrengthTempo is a focused strength training timer built for lifters who care about rhythm, control, and consistency. StrengthTempo now supports more languages and lets you share completed workouts as images, making it easier to use, save, and share your training progress. Set precise timing for every rep phase, follow your workout with clear cues, and keep your training organized with an action library, training setups, and cycles that are easy to manage. Whether you are working on better form, stricter tempo, or more repeatable sessions, StrengthTempo helps you stay locked in from the first rep to the last. What makes StrengthTempo different StrengthTempo is designed for real lifting sessions, not for endless setup. It gives you the structure you need to train with intent while keeping the interface fast, simple, and gym-friendly. Use it to: Set exact rep tempo for eccentric, pause, and concentric phases Build and organize your action library Create training setups for different sessions Arrange cycles so you know what to train each day Run focused sessions with clear timing cues Review completed workouts and recent training history Key features Precise tempo control Create custom tempo settings for each lift so every rep is more controlled, consistent, and repeatable. Action library, training, and cycles Keep your lifting organized with reusable actions, structured training setups, and cycles that help you stay on plan. Session-first training flow Start quickly, manage your session clearly, and move through each lift without unnecessary friction. Optional haptics and sound cues Stay on tempo without staring at the screen. Use haptics and light audio cues for phase changes when you want extra guidance. Workout history Look back at recent sessions and track what you trained. Offline-first, with optional sync Use the app fully offline, with optional iCloud sync when you want your data available across devices. Built for focused lifters StrengthTempo is made for lifters who want cleaner reps, better rhythm, and a more structured training flow. If tempo matters to your training, this app is built for you. Train with purpose. Move with rhythm. Make every rep count. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Interval Timer4 screens
StrengthTempo3 screens

Verdict

The call

The clearest difference is iOS requirement: Interval Timer at 16.0 against StrengthTempo's 18.6. On price, update cadence, ads and in-app purchases 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. Interval Timer sells 12 in-app purchases, starting at $1.99 per month and StrengthTempo sells 4 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Interval Timer ships an update every 4 weeks, StrengthTempo every 3 weeks. The most recent releases landed on October 12, 2026 and September 28, 2026 respectively.

Scorecard1 real difference · 9 level
Interval Timer versus StrengthTempo: the parameters behind the verdict, then further details
ParameterInterval TimerStrengthTempo
PriceFreeFree
Rating4.7 (3.5K ratings) — better—
Positive reviews66.5% of reviews—
Number of ratings3.5K — better—
Update frequencyEvery 4 weeksEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhoneiPhone, iPad — better
Requires iOS16.0 — better18.6
Further details — not scored
Size243 MB13 MB
Age rating4+4+
DeveloperHIIT Apps Sp. z o.o.小雨 李

Bugs and requests

Interval Timer

Reported bugs

3 issues
  • Workouts disappearing
  • App crashes and freezes
  • Timing issues with intervals

Requested features

4 requests
  • Apple Watch integration
  • More customization options
  • Additional audio cues and prompts
  • Improved workout tracking and history

StrengthTempo

Not enough reviews yet to summarise bugs or requests.

In-app purchases

12 purchases

Interval Timer

Subscriptions8
  • Intervals: monthly membership7 Days trial$1.991 Month
  • Intervals: membership7 Days trial$3.993 Months
  • Intervals: monthly membership$4.991 Month
Show 5 more
  • Intervals: yearly membership$6.991 Year
  • Intervals: yearly membership1 Year trial$9.991 Year
  • Intervals: yearly membership7 Days trial$19.991 Year
  • Intervals: yearly membership7 Days trial$24.991 Year
  • Intervals: membership7 Days trial$24.991 Year
One-time4
  • Intervals | PRO version$14.99
  • Intervals | Membership$14.99
  • Intervals | Membership$34.99
Show 1 more
  • Intervals | Membership$39.99
4 purchases

StrengthTempo

Subscriptions3
  • StrengthTempo Pro Monthly$3.991 Month
  • StrengthTempo Pro Quarterly$9.993 Months
  • StrengthTempo Pro Annual$29.991 Year
One-time1
  • StrengthTempo Pro Lifetime$79.99

Questions

Is Interval Timer free?
Interval Timer is free to download, with in-app purchases available.
Is StrengthTempo free?
StrengthTempo is free to download, with in-app purchases available.
Do Interval Timer or StrengthTempo have ads?
Neither Interval Timer nor StrengthTempo shows ads.
Which is updated more often, Interval Timer or StrengthTempo?
Interval Timer ships an update every 4 weeks, and StrengthTempo every 3 weeks. Most recently, Interval Timer was updated on October 12, 2026 and StrengthTempo on September 28, 2026.

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