Colors vs x
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Colors
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Colors is the ultimate color reference for designers, developers, artists, architects, printers and anyone working with professional color systems. The app combines many international color standards in one easy-to-use application and provides detailed information for every color. Supported color systems: • CSS (140 colors) • RAL (213 colors) • HKS (313 colors) • Avery (383 colors) • DIC (1,280 colors) • DIN 6164 (574 colors) • Federal Standard FS 595B (207 colors) • British Standard BS 381C (148 colors) • British Standard BS 4800 (125 colors) • ISCC-NBS (270 colors) • NCS – Natural Colour System (1,970 colors) • X11 (507 colors) • AS 2700 (209 colors) • XKCD (925 colors) • Crayola (321 colors) For every color, the app displays: • Color preview • Color name • RGB values • HEX value • HSB • HSL • CMYK • Text sample with matching background color Every color can also be displayed in up to 100 different brightness levels, making it easy to compare shades and find the perfect variation. Features: • More than 7,500 colors • 15 international color systems • RGB, HEX, HSL, HSB and CMYK values • Up to 100 brightness variations • Fast search and clean interface • Perfect for graphic design, web development, architecture and printing Whether you're creating websites, designing graphics or selecting colors for print, Colors is the perfect reference tool. .
x
Control your heat pump system remotely with this app. Monitor performance, create custom scenes, and view statistics from anywhere. No extra hardware is needed to get started.
- Remote heat pump control
- Comprehensive system monitoring
- Customizable scenes
- Statistics and overviews
- Alarm and warning notifications
- Dark and light mode
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Die Kermi App x-center macht Ihren Alltag ein starkes Stück komfortabler und einfacher. Damit haben Sie ihr Heizsystem mit der Wärmepumpe ganz einfach und bequem im Griff. Wann immer Sie wollen und wo immer Sie gerade sind – von zu Hause oder von unterwegs. Zur Steuerung Ihrer Wärmepumpe via App ist keine zusätzliche Hardware notwendig. Einfach unter www.x-center.systems registrieren, den Onlinezugriff auf Ihre Anlage beantragen, in der App ein neues Verbindungsprofil mit Ihren Registrierungsdaten erstellen und los geht’s. Die Kermi App x-center bietet Ihnen Folgendes: • Komfortable Steuerung & umfassendes Monitoring Ihrer Wärmepumpe x-change dynamic pro sowie für alle an der Wärmepumpe angeschlossenen Komponenten - vor Ort und aus der Ferne • Erstellung von individuellen und personalisierten Szenen • Eine umfassende Statistik-Funktion • Visualisierung von Alarm- und Warnmeldungen • Verschiedenste Übersichten für Ihre Wärmepumpe - alle wichtigen Informationen auf einen Blick • Individuelle und personalisierbare Favoriten-Funktion • Dark- und Light-Mode Anleitungen zur Registrierung sowie zum Freischalten des Onlinezugriffes finden Sie unter: www.x-center.systems
Screenshots
Verdict
The clearest difference is price: x at Free against Colors's $0.99. x also leads on in-app purchases (none vs 1) and update cadence (monthly vs every 19 months). On 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
x is free to download; Colors costs $0.99 up front. Colors sells 1 one-off in-app purchase. x asks for nothing beyond the download.
Colors ships an update every 19 months, x monthly. The most recent releases landed on August 11, 2026 and October 3, 2026 respectively.
| Parameter | Colors | x |
|---|---|---|
| Price | $0.99 | Free — better |
| Positive reviews | — | 56.3% of reviews |
| Update frequency | Every 19 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 12 MB | 282 MB |
| Age rating | 4+ | 4+ |
| Developer | Gerhard Lentschik | Kermi GmbH |
In-app purchases
Colors
- Remove Advertising$0.99
x
No in-app purchases









