Interval Timer Sec+Sec vs 1Timer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Interval Timer Sec+Sec
This free interval training timer app uses alarms and vibrations to mark specified second intervals. It automatically tracks repetitions and remembers your settings, making it ideal for High Intensity Interval Training (HIIT). Background operation is limited.
- Second-based interval timing
- Alarm and vibration alerts
- Repetition counter
- Saves interval settings
- Suitable for HIIT
- Background operation limited
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Simple free interval training timer application that alarm and vibration at the time specified in seconds. After the set time has elapsed, it counts the number of repetitions. Since it keeps the specified seconds setting, it is no need to set the seconds every time. The behavior in the background is limited. For High Intensity Interval Training (HIIT).
1Timer
This app provides highly customizable voice timers for various activities like workouts, habits, and routines. Set per-second countdowns, interval reminders, and choose from multiple languages and voices for announcements. It offers quick access via widgets and works offline with VoiceOver support.
- Voice countdown announcements
- Customizable reminder intervals
- Multiple language and voice options
- Chaining timers together
- Widget for quick access
- Works with locked screen
- VoiceOver support
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1Timer offers timers that announces time remaining in voice. The content and timing of voice reminders are extremely customizable. USEFUL You will be pleasantly surprised by how useful the app is in many scenarios. Here is an incomplete list of possible use cases. • Workout -- we have you covered whether it simple workout or complex workout routines. • Habits -- shape up some time-bounded habits. • Kids -- give your kids a disciplinary countdown. • Be on time -- get reminders before it's too late. • Routines -- perform daily time-bound routines. • Exams/tests -- be informed before the time's up. • And many more... CUSTOMIZABLE • You can have a per-second voice countdown for the last 15 seconds. • You can have a timer that reminds you every 5 seconds for the last minute, and every minute otherwise. • The combinations of configurations are countless. • You can choose the reminder language from 30+ languages. • You can choose the reminder speed. • You can even choose from different voices. • You can also customize what the timer reminders are. • You can set up advanced timers, each with different configurations. • You can even chain timers together to build a powerful reminder system that you can find nowhere else. THOUGHTFUL • The app provides single-tap access to timers, without any setup. • The app is very small, so it doesn't waste your precious storage space. • The app is super fast, so it's available the second you need it. • The app provides a widget for even easier access. • The app fully works even if the screen is locked. • The app fully support VoiceOver. POPULAR Just read the reviews to see how much our users love the app!
Screenshots
Verdict
The clearest difference is rating: 1Timer at 4.7 against Interval Timer Sec+Sec's 3.7. 1Timer also leads on update cadence (every 6 weeks vs every 12 months) and ratings volume (1.2K vs 13). Interval Timer Sec+Sec's advantage is in-app purchases (none vs 5) and iOS requirement (13 vs 15.0). On price, review sentiment, 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. 1Timer sells 5 in-app purchases, starting at $0.99 per 7 days. Interval Timer Sec+Sec asks for nothing beyond the download.
1Timer holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: 1Timer has 1.2K ratings behind it against 13, so its average is the more settled of the two. Written reviews point the same way: 78% of Interval Timer Sec+Sec's written reviews are positive against 81% of 1Timer's.
Interval Timer Sec+Sec ships an update every 12 months, 1Timer every 6 weeks. The most recent releases landed on September 24, 2026 and September 30, 2026 respectively.
| Parameter | Interval Timer Sec+Sec | 1Timer |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (13 ratings) | 4.7 (1.2K ratings) — better |
| Positive reviews | 77.8% of reviews | 81.0% of reviews — better |
| Number of ratings | 13 | 1.2K — better |
| Update frequency | Every 12 months | Every 6 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13 — better | 15.0 |
| Further details — not scored | ||
| Size | 12 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | SHIGETO TAKAGI | Diffuse Thinking LLC |
Customer experience
Interval Timer Sec+Sec
1Timer
Bugs and requests
Interval Timer Sec+Sec
Not enough reviews yet to summarise bugs or requests.
1Timer
Reported bugs
4 issues- Ads closing the app
- Voice prompts not working after switching to background
- Timer number disappearing when closing app from background
- White noise/static audio issue
Requested features
7 requests- Delayed start option
- Ability to record custom voice messages
- More alarm sound options
- Apple Watch app
- Ability to organize timers into folders
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- Live Activities support
- Customizable Dynamic Island display
In-app purchases
Interval Timer Sec+Sec
No in-app purchases
1Timer
- Pro Weekly7 Days trial$0.997 Days
- Pro Monthly7 Days trial$2.991 Month
- Pro Annual1 Month trial$9.991 Year
- Pro Lifetime$19.99
- Pro Lifetime$39.99
Questions
Is Interval Timer Sec+Sec free?
Is 1Timer free?
Which has better reviews, Interval Timer Sec+Sec or 1Timer?
Do Interval Timer Sec+Sec or 1Timer have ads?
Which is updated more often, Interval Timer Sec+Sec or 1Timer?
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