Software Alternatives & Reviews

KaiOS VS CalyxOS

Compare KaiOS VS CalyxOS and see what are their differences

KaiOS logo KaiOS

KaiOS is a light operating system for smart feature phones like the JioPhone and Nokia 8110.

CalyxOS logo CalyxOS

Privacy-focused operating system for smartphones based on Android and microG
  • KaiOS Landing page
    Landing page //
    2021-09-21
  • CalyxOS Landing page
    Landing page //
    2023-05-01

KaiOS videos

How KaiOS is catching up with Android.

More videos:

  • Review - KaiOS is the future? - Nokia 2720 Full Review || Yes Hello 911? Tech
  • Review - Alcatel SmartFlip Flip Phone Review: KaiOS in the USA?

CalyxOS videos

CalyxOS Review: The Private & Secure Android ROM For Everyone!

More videos:

  • Review - GrapheneOS vs CalyxOS ULTIMATE COMPARISON (Battery & Speed Ft. Stock Android & iPhone)

Category Popularity

0-100% (relative to KaiOS and CalyxOS)
Mobile OS
16 16%
84% 84
Mobile SDK
13 13%
87% 87
OS & Utilities
100 100%
0% 0
Roms
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare KaiOS and CalyxOS

KaiOS Reviews

Top 5 Mobile Operating Systems 2023 (Alternatives to Android)
By opting for these phones, you will be able to search for, receive, and share information that is crucial to you. Phones incorporating KaiOS-powered can have cameras and support wifi, GPS, and Bluetooth.
Best Open Source Android Alternative OS for Smartphones
KaiOS is another open source-based Android alternative OS which approximately runs over 100 millions of devices. That’s a quite big number. If you haven’t heard of this operating system earlier, it’s not a big concern. KaiOS delivers non-touch or keypad only phones which has smart features like 4G, Wi-Fi, GPS, and HTML5-based applications.
Android Alternative: Top 12 Mobile Operating Systems
KaiOS packs its own KaiStore where you can find over 500 apps which include WhatsApp, YouTube, Facebook, Google Assistant, Google Maps, Google app, UC Browser, lightweight games, and more. There are hundreds of models available around the globe and the starting price of these phones is just $10 which is amazing. In India, JioPhone is quite popular which costs around $20-25...
Source: beebom.com
Open Source Mobile OS Alternatives To Android
Not your fault really. KaiOS was only released in 2017, and yet it is powering a huge number of mobile phones in just under two years.
Source: itsfoss.com

CalyxOS Reviews

Android Alternative: Top 12 Mobile Operating Systems
It ships with Signal for encrypted messaging; Tor browser to access the web without any tracking; a free and trusted VPN from the Calyx Institute; the open-source Aurora Store, a Play Store alternative, and more. There are no Google services included in CalyxOS but if you want, you can sideload microG to get some of the Google services without sacrificing your anonymity. To...
Source: beebom.com

Social recommendations and mentions

Based on our record, CalyxOS seems to be a lot more popular than KaiOS. While we know about 190 links to CalyxOS, we've tracked only 2 mentions of KaiOS. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

KaiOS mentions (2)

  • Our Antivirus Software went crazy
    What website did you go to? KaiOS is not dangerous. I'm dubious that their official site (kaiostech.com) would have trojans or malware on it... Source: 6 months ago
  • LetsEncrypt Cross-signing Expiry
    LetsEncrypt ISRG Root X1's IdenTrust DST Root CA X3 cross-signing has come to an end. This means that any device/browser (including KaiOS devices) which doesn't yet trust the ISRG Root X1 will no longer trust any site with a LetsEncrypt certificate (which, by the way, includes kaiostech.com!). Source: over 2 years ago

CalyxOS mentions (190)

  • Debloat non-rooted Android devices
    For example https://androidauthority.com/grapheneos-3287030/ > "Even if you stomach the Pixel-only requirement" I have not and will not stomach that at all, nope! https://grapheneos.org/faq#supported-devices Nope! I wasn't paying attention, but if I remember, Alphabet/Google was funded to deploy/release Android operating system, and they also were financed to deploy some hardware phones before disappearing to let... - Source: Hacker News / about 1 month ago
  • Apple Confirms Governments Using Push Notifications to Surveil Users
    I'm sure you did your research. I'm writing for other readers who are interested. There are a few alternatives, more can be found but this is a selection of the most prominent offerings. /e/OS: https://e.foundation/e-os/ GrapheneOS: https://grapheneos.org/ LineageOS: https://lineageos.org/ CalyxOS: https://calyxos.org/ PostmarketOS (based on Alpine Linux rather than Android): https://postmarketos.org/ (for some... - Source: Hacker News / 5 months ago
  • us What's a good (under $500, preferably lower than $200 though) android for geeks?
    Ironically, Pixels are the best for de-Googling. GrapheneOS requires a Pixel, as does CalyxOS for the most part. If you don't want your money going to Google, a used/refurb Pixel gets around that in my opinion. Source: 10 months ago
  • Youtube Premium via VPN
    Oh I see makes sense, one closed system needs another 😅 but if you look at Android, look at https://grapheneos.org/ and https://calyxos.org/. Source: 11 months ago
  • Android vs Apple phones
    I agree with your point, but wanted to ask, have you considered using a device with a degoogled AOSP-based OS like GrapheneOS or CalyxOS? Source: 12 months ago
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What are some alternatives?

When comparing KaiOS and CalyxOS, you can also consider the following products

LineageOS - Operating system for smartphones and tablet computers, based on the Android

GrapheneOS - GrapheneOS is an open source privacy and security focused mobile OS with Android app compatibility.

Android - Android is an open source mobile operating system initially released by Google in 2008 and has since become of the most widely used operating systems on any platform.

CopperheadOS - Secure Android built for encrypted and secure phones by a privacy focused company. Available as security-centric and privacy focused Google-free Android for the latest devices. Fully integrated with the latest IDS and MDM enterprise technologies.

Ubuntu Touch - Read more about Ubuntu Touch. Our free and open source mobile OS is made and maintained by UBports! We care about your freedom and privacy.

e.foundation /e/ - /e/ is a fork of LineageOS that aims to be completely free of everything Google.