ScratchQuartets vs OneTouchVibrationTimer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScratchQuartets
This app helps organize barbershop quartet competitions by randomly assigning singers to each voice and selecting a song. It's designed for large groups like choruses to facilitate fun, random performances.
- Random quartet generation
- Singer assignment by voice
- Random song selection
- Add unlimited singers
- Add custom songs
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Generate random barbershop quartets from a list of singers. Add all the singers you want on each voice and the app will choose one for each voice randomly. Yo can also add songs so the app can select a random song to be performed by the quartet. - What is the purpose of this app? The propose is to help large group of barbershop singers, like choruses, organize a fun competition called Scratch Quartets, that consist on choosing, randomly, a singer for each voice and hear them perform a song. - Who is the target audience? The target audience are barbershop choruses, but it can be used by any group of singers that want to perform a similar competition. - How does the app work? You add singers for each voice and add the songs that can be performed and the app choose the singers and the song to perform from those lists each time you tap on the new quartet button.
OneTouchVibrationTimer
This utility app allows you to set interval timers with a single tap, receiving silent vibration notifications when the timer ends. It functions in the background, even when the screen is off or the app is closed, and displays the calculated end time for convenience.
- One-tap timer setting
- Vibration notifications
- Background operation
- Calculated end time display
- Customizable time intervals
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No sound.Vibrate to notify the end of the timer.Notification will be sent even when the screen is off or the application is closed. ●Set timer with one tap Once you set the interval timer you want, you can start it with one tap. ●Know when the timer ends No need to calculate the timer end time.When you set the timer, you will also know the end time. ●Works in the background Even when the screen is off, a notification will inform you of the end of the timer. ●Time interval can be changed You can set the interval as you like from the settings. -TermsOfService https://mizukami2005.github.io/one_touch_vibration_timer/Terms/en/index.html -PrivacyPolicy https://mizukami2005.github.io/one_touch_vibration_timer/PrivacyPolicy/en/index.html
Screenshots
Verdict
The clearest difference is rating: OneTouchVibrationTimer at 3.7 against ScratchQuartets's 1.0. OneTouchVibrationTimer also leads on review sentiment (33% vs 0%) and update cadence (every 6 weeks vs every 68 months). ScratchQuartets's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement 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. OneTouchVibrationTimer sells 1 in-app purchase, starting at $1.49 per month. ScratchQuartets asks for nothing beyond the download.
OneTouchVibrationTimer holds the better App Store score, 3.7 against 1.0. That said, the two scores are not equally well evidenced: OneTouchVibrationTimer has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of ScratchQuartets's written reviews are positive against 33% of OneTouchVibrationTimer's.
ScratchQuartets ships an update every 68 months, OneTouchVibrationTimer every 6 weeks. The most recent releases landed on October 8, 2026 and September 29, 2026 respectively.
| Parameter | ScratchQuartets | OneTouchVibrationTimer |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 3.7 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | 33.3% of reviews — better |
| Number of ratings | 1 | 6 — better |
| Update frequency | Every 68 months | Every 6 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 10.0 | 10.0 |
| Further details — not scored | ||
| Size | 12 MB | 77 MB |
| Age rating | 4+ | 4+ |
| Developer | Taps and Swipes | mizukami takamasa |
Customer experience
ScratchQuartets
OneTouchVibrationTimer
In-app purchases
ScratchQuartets
No in-app purchases
OneTouchVibrationTimer
- JOIN$1.491 Month
Questions
Is ScratchQuartets free?
Is OneTouchVibrationTimer free?
Which has better reviews, ScratchQuartets or OneTouchVibrationTimer?
Do ScratchQuartets or OneTouchVibrationTimer have ads?
Which is updated more often, ScratchQuartets or OneTouchVibrationTimer?
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