AWS MLS vs XK0
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
AWS MLS
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The Machine Learning Specialty exam spans the whole life of a model on AWS ā data, features, SageMaker training, deployment. Certisimo turns that breadth into a plan you can practice. WHAT'S INSIDE ⢠120 exam-style questions across 6 practice sets, written for the AWS Machine Learning Specialty exam ⢠Covers what the exam covers: SageMaker, Kinesis, model training, hyperparameter tuning and deployment TRAIN, THEN TEST Training mode gives you instant feedback as you answer. Test mode runs like the real thing: a countdown clock, no hints, a score at the end, and a review of everything you skipped or missed. STOP GUESSING WHETHER YOU ARE READY Your readiness score is computed from your own answers, so you always know how close you are ā and what to do next. EVERYTHING IN YOUR POCKET ⢠Save the questions that matter and annotate them with notes ⢠Search the entire bank instantly ⢠A complete history of every session you have run ⢠100% offline, iPhone and iPad, light and dark ā and no sign-up, ever ALREADY BOUGHT THIS APP? Premium is yours ā free, forever. It unlocks by itself the first time you open this update: nothing to buy, nothing to restore, no account to create. Your saved questions, your notes and your full history are all still here. GO FURTHER WITH PREMIUM Certisimo Premium unlocks the full explanation behind every answer ā why the right choice wins, not just which letter it was ā plus unlimited exam simulations, the complete Insights breakdown (weak, hard, new and strong questions) and an ad-free experience. ⢠Weekly $5.99 Ā· Yearly $34.99 with a 14-day free trial Ā· Lifetime $79.99 one-time purchase Your ML Specialty knowledge is a question bank away. Start practicing today. Certisimo is an independent study aid and is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Inc. Weekly and Yearly Premium are auto-renewable subscriptions; Lifetime is a one-time purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account, and you can manage or cancel your subscription in your App Store account settings at any time. Terms of Use: https://certisimo-app.web.app/terms Privacy Policy: https://certisimo-app.web.app/privacy
XK0
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PASS YOUR COMPTIA LINUX+ (XK0-006) EXAM Master Linux system administration with 500+ practice questions designed to get you certified on your first attempt. 500+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? Linux+ professionals earn up to $203K annually (Skillsoft 2024). With Linux powering 96% of the world's top servers, cloud infrastructure, and container platforms, CompTIA Linux+ validates the skills employers demand across DevOps, cloud, and sysadmin roles. WHAT YOU'LL MASTER: ⢠Boot process and GRUB2 configuration including kernel parameters and boot targets ⢠Filesystem Hierarchy Standard with /etc, /var, /proc, and tmpfs mount points ⢠Systemd service management including unit files, targets, and journalctl logging ⢠User and group administration with passwd, shadow, sudoers, and PAM modules ⢠SELinux security enforcement with contexts, booleans, and policy troubleshooting ⢠Bash scripting with variables, loops, conditionals, exit codes, and cron scheduling ⢠Python scripting for Linux automation including file handling and subprocess calls ⢠Git version control with branching, merging, rebasing, and remote repositories ⢠Docker and Podman container management including images, volumes, and networking ⢠Kubernetes orchestration with pods, deployments, services, and kubectl operations ⢠Ansible and OpenTofu infrastructure as code for configuration management at scale ⢠Package management across RPM, dpkg, yum, dnf, and apt ecosystems ⢠PXE network booting and kickstart automated provisioning for bare-metal deployments ⢠X11 and Wayland display protocols including remote access and GPU configuration ⢠AI/ML integration for system administration including log analysis and anomaly detection STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into Linux administration expertise. Download now. Pass your exam. Master Linux.
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Verdict
The clearest difference is in-app purchases: XK0 at none against AWS MLS's 3. XK0 also leads on ads (none vs shown) and iOS requirement (15.0 vs 26.0). On price, update cadence and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. AWS MLS sells 3 in-app purchases, starting at $5.99 per 7 days. XK0 asks for nothing beyond the download.
AWS MLS ships an update every 5 months, XK0 every 3 months. The most recent releases landed on October 25, 2026 and October 21, 2026 respectively.
| Parameter | AWS MLS | XK0 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 months | Every 3 months ā better |
| Ads | Yes | No ā better |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPad | iPhone, iPad, iPod ā better |
| Requires iOS | 26.0 | 15.0 ā better |
| Further details ā not scored | ||
| Size | 17 MB | 27 MB |
| Age rating | 4+ | 4+ |
| Developer | SPIDER SERVICE SRL | Davy Raitt |
In-app purchases
AWS MLS
- Premium Weekly$5.997 Days
- Premium Yearly14 Days trial$34.991 Year
- Premium Lifetime$79.99
XK0
No in-app purchases









