klang² vs Sortobot
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
klang²
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20 sound squares turn your ears upside down. Which bird sings? Which composer sounds? Can you put proverbs together and recognize foreign languages? Place your smartphone with the klang² app open in the middle of the table, place a sound square on the reader and listen carefully: Off you go with your acoustic game collection! ATTENTION: This app only works together with 20 sound squares, which are available via klang2.com.
Sortobot
A factory simulation game where players sort packages by color and shape into designated bins. Navigate increasingly complex challenges across six factory halls, with a daily challenge and optional cosmetic purchases.
- Package sorting by color and shape
- 155 levels across six factory halls
- Daily generated challenges
- Offline play
- Customizable themes and skins
- Optional in-app purchases
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Sortobot is a friendly little factory where the belts never stop. Packages roll out of the machine and head for the bins. Your job is simple, and there is only ever one thing to do: tap a diverter to flip which way the belt sends the next package. Red triangles to the red bin, blue circles to the blue bin, and so on. Three wrong sorts and the machine overloads — so keep your eyes on the belt. Every colour is paired with its own shape, on the packages and on the bins, so you are never guessing which is which. 155 levels across six factory halls - Startband — the basics, at a gentle pace - Farbwerk — painters that recolour packages on the way past - Nachtschicht — tunnels that hide the belt, and gates that open on a timer - Turbohalle — splitters, speed zones, and five colours at once - Chaoszentrale — bins that swap places while you are watching - Remix — everything at once Play it your way - A Bonus Shift every day: an extra level, generated fresh and identical for everyone — and it works with the phone in airplane mode - Collect bonus gears by taking the risky route - Earn coins and spend them on belt themes, backgrounds, package skins and hats for your robot — on one-level boosters when a shift gets too hot, on continuing a run that went wrong, or on refilling your hearts - Find robot cards and fill in the album What this game does not do - No ads. None. - No tracking, no analytics, no account, no internet needed. - No timers you can pay to skip, and nothing you can only buy: every purchase is optional, and everything coins buy can also be earned by playing. The optional purchases are coin packs, a lives refill, and a one-time purchase that removes the lives system for good. Sortobot works completely offline. Nothing you do here leaves your phone.
Screenshots
Verdict
The clearest difference is in-app purchases: Sortobot at none against klang²'s 10. Sortobot also leads on update cadence (every 5 days vs every 2 months). 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. klang² sells 10 one-off in-app purchases. Sortobot asks for nothing beyond the download.
klang² ships an update every 2 months, Sortobot every 5 days. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.
| Parameter | klang² | Sortobot |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 89 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | Oberlin & Rennertz GmbH | Goatee Avengers |
In-app purchases
klang²
- Klang2 Pro Option 0Free
- Klang2 Pro Option 1$0.99
- Bundesländer und Hauptstädte$0.99
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- Klang2 Pro Option 2$1.99
- Klang2 Pro Option 3$3.99
- Volkslieder Premium$3.99
- Tierisch Menschlich$3.99
- Klang2 Pro Option 4$7.99
- Klang2 Pro Option 5$11.99
- Klang2 Pro Option 6$16.99
Sortobot
No in-app purchases









