ScratchQuartets vs Ruko bots
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.
Ruko bots
Control robot toys via Bluetooth with features like gravity sensing, remote control, and programming. This app offers an engaging way to interact with your robot companions.
- Bluetooth robot control
- Gravity sensing
- Remote control functions
- Programming capabilities
- Interactive robot toy experience
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Ruko bots is an app that controls robot toys through Bluetooth, including gravity sensing, remote control, and programming functions. It is a very fun robot toy.
Screenshots
Verdict
The clearest difference is rating: Ruko bots at 2.8 against ScratchQuartets's 1.0. Ruko bots also leads on update cadence (every 2 months vs every 68 months) and ratings volume (4 vs 1). ScratchQuartets's advantage is iOS requirement (10.0 vs 15.6). On price, review sentiment, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Ruko bots holds the better App Store score, 2.8 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 0% and 0% positive.
ScratchQuartets ships an update every 68 months, Ruko bots every 2 months. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.
| Parameter | ScratchQuartets | Ruko bots |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 2.8 (4 ratings) — better |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| Number of ratings | 1 | 4 — better |
| Update frequency | Every 68 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 12 MB | 68 MB |
| Age rating | 4+ | 4+ |
| Developer | Taps and Swipes | 卓挺 杜 |
Customer experience
ScratchQuartets
Ruko bots
In-app purchases
ScratchQuartets
No in-app purchases
Ruko bots
No in-app purchases
