Interval Timer vs 9x
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interval Timer
Create personalized workout timers for HIIT, Tabata, and circuit training. Customize intervals, choose voice or beep cues, and run timers in the background with music. Includes a stopwatch and countdown timer for versatile fitness tracking.
- Custom interval timers
- Voice or beep cues
- Background operation
- Customizable countdown
- Stopwatch and countdown timer
- Dark and light mode
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Maximize your workout routine with our Interval Timer – the ultimate tool for creating personalized timers that cater to your fitness needs. Whether you’re doing circuit training or HIIT, our timer provides full customization options to ensure you achieve your fitness goals with ease. ◆ FEATURES ◉ Create custom interval timers ◉ Start your interval timers with just one ◉ Voice or beep sounds for every workout ◉ Customizable initial countdown ◉ Countdown timer for none-interval workouts ◉ Dedicated stopwatch ◉ Supports dark and light mode ◉ Works in the background - great with headphones and your music. ◆ SPEAKS | BEEPS Know the resting and training times with the loud voice or beep sounds. Don’t want any sounds? Choose the silent mode and watch the time on the screen by enabling prevent auto-lock feature. ◆ RUNS IN THE BACKGROUND Interval Timer can run its timers in the background allowing you to have your screen off or use other apps, and you can always access them whenever you want. We believe that eliminating restrictions and making the process smoother can deliver a much better and more cohesive experience every time. ◆ GO SIMPLE Make use of a classic stopwatch and countdown timer. Track your runs, overall workout time, PRs, and more. ► Get this interval timer to make your workouts even more effective! EULA: https://dmwizards.com/interval-timer-terms-and-conditions
9x
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Experience 9x's all-in-one app, your mobile connection to our mind-body Fitness studio! Download our app today for easy access to our schedule, book 9x classes, purchase plans, manage your account, view promotions and events, get studio updates, and more. Discover how 9x can help you achieve your goals, no matter where you are in your fitness and wellness journey.
Screenshots
Verdict
The clearest difference is in-app purchases: 9x at none against Interval Timer's 2. 9x also leads on iOS requirement (16.6 vs 18.0). Interval Timer's advantage is update cadence (every 3 weeks vs every 21 months). On price, ads 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
Both are free to download. Interval Timer sells 2 in-app purchases, starting at $2.99 per month. 9x asks for nothing beyond the download.
Interval Timer ships an update every 3 weeks, 9x every 21 months. Both last shipped on October 3, 2026.
| Parameter | Interval Timer | 9x |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (142 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 142 — better | — |
| Update frequency | Every 3 weeks — better | Every 21 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone |
| Requires iOS | 18.0 | 16.6 — better |
| Further details — not scored | ||
| Size | 6 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Duleep Madusanka | APN Lodge |
In-app purchases
Interval Timer
- Interval Timer (Monthly)$2.991 Month
- Interval Timer (Lifetime)$14.99
9x
No in-app purchases
Questions
Is Interval Timer free?
Is 9x free?
Do Interval Timer or 9x have ads?
Which is updated more often, Interval Timer or 9x?
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