Simple Interval Workout Timer vs PeakO₂
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Interval Workout Timer
This app provides a simple, intuitive timer for various interval training methods like Tabata, HIIT, and EMOM. It allows users to save unlimited custom workouts for free, making fitness routines more efficient and accessible.
- Interval training timer
- Supports Tabata, HIIT, EMOM
- Save unlimited workouts
- Minimalistic UI
- Readable from a distance
- Ad-free experience
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If you were searching for the timer app for your Tabata, hit, HIIT, emom, you name it - any interval or simply timed training, then that’s the one! Forever free and free from annoying ads. Simple, minimalistic, intuitive, polished, and smoothly animated user interface. Quick to set up and easily readable from a further distance. Make your interval workout a breeze with this app that allows you to save limitless workouts for free. Interval training is a great tool for burning a lot of calories in a short period of time and they help a lot with your cardiovascular health. Let’s get fit together!
PeakO₂
Enhance your breath control and oxygen efficiency with structured exercises. This app offers personalized training plans, guided sessions, and progress tracking for improved physical and mental endurance. Suitable for athletes, freedivers, and anyone looking to master their breath.
- Personalized O₂ training plans
- Customizable breath-hold start time
- Guided breath-hold sessions
- Visual and audio cues
- Progress tracking and milestones
- Minimalist and intuitive design
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Transform your breath control and optimize your oxygen efficiency with PeakO₂, the ultimate app for breath-hold and respiratory training. Designed for freedivers, athletes, meditators, and anyone seeking better physical and mental endurance, PeakO₂ helps you master oxygen efficiency through structured, customizable exercises. Key Features Personalized O₂ Training Plans • Customize your breath-hold start time • Increment hold durations as you progress • Set rest intervals and cooldown periods Guided Breath-Hold Sessions • Step-by-step visual and audio cues for a seamless experience • Clear progress animations for focus and consistency Track Your Progress • Monitor your longest breath-hold and total training time • Build streaks and stay motivated with performance milestones Beautiful, Intuitive Design • Minimalist interface to keep you focused during training • Calm visuals for a relaxing, distraction-free experience Perfect for All Levels Whether you’re a beginner building breath control, a swimmer, a freediver, or someone improving focus through breath work, O₂ Trainer adapts to your pace. Breathe smarter. Train better. Download PeakO₂ today and begin your journey to mastering your breath. Terms and pricing: The annual subscription fee is $99.99 USD, offering you unlimited access to exclusive features as long as your subscription is active. This subscription renews automatically, with the charge being applied to your iTunes account upon confirmation of your initial purchase. To avoid automatic renewal, you can disable the auto-renewal feature in your Account Settings at least 24 hours before the end of the current subscription period. For more information, please refer to our terms of service available at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ or privacy policy on https://magnetic-cement-d48.notion.site/Privacy-Policy-for-PeakO-iOS-App-15f9cea87bdb80cc8b2de5df98cd8d3c
Screenshots
Verdict
The clearest difference is in-app purchases: Simple Interval Workout Timer at none against PeakO₂'s 4. Simple Interval Workout Timer also leads on ads (none vs shown) and iOS requirement (9.0 vs 17.6). PeakO₂'s advantage is update cadence (monthly vs every 4 months) and rating (4.9 vs 4.7). On price, ratings volume 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. PeakO₂ sells 4 in-app purchases, starting at $0.99 per 7 days. Simple Interval Workout Timer asks for nothing beyond the download.
PeakO₂ holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 7 and 13 respectively.
Simple Interval Workout Timer ships an update every 4 months, PeakO₂ monthly. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.
| Parameter | Simple Interval Workout Timer | PeakO₂ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (7 ratings) | 4.9 (13 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 | 13 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 53 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Artur Fijal | OriginX |
Customer experience
Simple Interval Workout Timer
PeakO₂
In-app purchases
Simple Interval Workout Timer
No in-app purchases
PeakO₂
- Weekly$0.997 Days
- Monthly$3.991 Month
- Yearly3 Days trial$17.991 Year
- Lifetime$29.99
Questions
Is Simple Interval Workout Timer free?
Is PeakO₂ free?
Which has better reviews, Simple Interval Workout Timer or PeakO₂?
Do Simple Interval Workout Timer or PeakO₂ have ads?
Which is updated more often, Simple Interval Workout Timer or PeakO₂?
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