Interval Timer vs SFL Trainer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interval Timer
This app provides a simple and customizable timer for interval training like HIIT, Tabata, and EMOM. It offers audio cues, background operation, and integrates with Apple Watch for health tracking. Pre-built routines and workout reminders help users stay consistent with their fitness goals.
- Customizable interval timer
- Audio alerts for rounds
- Background operation
- Apple Watch integration
- Workout reminders
- Pre-built routines
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Set your work and rest intervals, press start, and focus on your workout. PureHIIT is a simple timer for HIIT, Tabata, EMOM, circuits, and boxing rounds. • Adjust work, rest, and round settings to suit your session. • Follow sound cues as you move from one phase to the next. • Keep listening to your music while you train. • Use the timer in the background or in landscape mode. • Start with a prebuilt routine or save your own. • Set workout reminders to help you keep a routine. Getting started is simple: choose a routine or set your intervals, check the number of rounds, and press start. Clear phase colors help you see when to work and when to rest. Free to download, with optional in-app purchases. Apple Watch features require Premium. On Apple Watch, the app integrates with Health to record heart rate and energy used. Make time for your next workout with PureHIIT. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SFL Trainer
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Main features: -Manage booking list -Manage waiting list -Add members to classes
Screenshots
Verdict
The clearest difference is in-app purchases: SFL Trainer at none against Interval Timer's 8. SFL Trainer also leads on ads (none vs shown) and iOS requirement (13.4 vs 15.0). Interval Timer's advantage is update cadence (fortnightly vs every 5 weeks) and device support (4 vs 2). On price 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 8 in-app purchases, starting at $3.99 per month. SFL Trainer asks for nothing beyond the download.
Interval Timer ships an update fortnightly, SFL Trainer every 5 weeks. The most recent releases landed on October 24, 2026 and October 3, 2026 respectively.
| Parameter | Interval Timer | SFL Trainer |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (297 ratings) — better | — |
| Positive reviews | 73.3% of reviews | — |
| Number of ratings | 297 — better | — |
| Update frequency | Fortnightly — better | Every 5 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.4 — better |
| Further details — not scored | ||
| Size | 45 MB | 21 MB |
| Age rating | +4 | 4+ |
| Developer | Miklos Pavel | Scope Software Solutions LLC |
Bugs and requests
Interval Timer
Reported bugs
2 issues- Advertisements still present after paying for removal
- App requires premium to start timer (recent change)
Requested features
8 requests- Remove the cap on rounds
- Add a background click feature (e.g., every second)
- More sound options
- Option for more than one workout
- Add a halfway beep
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- Add a countdown for the workout interval
- Beep once at 15 seconds for a 30-second workout interval
- Countdown the last 3 seconds of a workout interval
SFL Trainer
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Interval Timer
- Monthly$3.991 Month
- Yearly7 Days trial$19.991 Year
- Premium featuresFree
- Remove Ads$1.99
- Custom sounds$1.99
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- Premium features$4.99
- Premium features$9.99
- Premium features$14.99
SFL Trainer
No in-app purchases
Questions
Is Interval Timer free?
Is SFL Trainer free?
Do Interval Timer or SFL Trainer have ads?
Which is updated more often, Interval Timer or SFL Trainer?
Other comparisons
