Cudex vs StepChallenge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cudex
This app gamifies your daily steps by turning them into experience points to collect and hatch unique monsters. Earn in-app currency to customize your collection and compete with friends. Unlock new creatures and features with optional Pro upgrades.
- Collect monsters by walking
- Earn XP from daily steps
- Track steps via Apple Health
- Compete with friends
- In-app shop for customization
- Optional Pro subscription for advanced features
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There's a monster in here. Your steps collect more. Cudex turns your daily walking into a collection of monsters. Walk with your phone. Collect your steps. Hatch something new. Cudex is free to use, with no ads. Cudex Pro adds more. HOW IT WORKS • Your iPhone already counts your steps with Apple Health • Tap Collect in the app to turn today's steps into XP • XP raises your level, and every level hatches a new monster into your collection Every 100 steps is 1 XP. Steps you don't collect by midnight are gone, so the daily tap is the habit. Up to three reminders a day help you collect before the day ends. FREE FOR EVERYONE • 60 monsters to find, one every level • Streaks, badges and quests to chase • A history calendar of every day you've walked • Outfits and places for your monster from the shop, bought with coins you earn by walking • Share cards for a great day or a new monster • A daily step goal you set yourself WALK WITH FRIENDS Add friends with a code and see who has walked the most today. Tap a friend to see their monster, their collection and their badges. Friends is optional. Nothing is shared until you turn it on, and you can stop sharing at any time. WHAT CUDEX PRO ADDS • 48 rare monsters to find • Home screen and lock screen widgets, so you can collect without opening the app • Apple Watch complications • Insights: trends, consistency, your week, goal days and the hours you walk • The full shop of outfits and places YOUR STEPS, YOUR CHOICE Cudex reads step counts from Apple Health. Your steps stay on your phone unless you turn on Friends, and then only the friends you add can see them SUBSCRIPTION Cudex Pro is available as a monthly or yearly subscription, or as a one-time Lifetime purchase. If a free trial is offered, it converts to a paid subscription unless you cancel before it ends. Payment is charged to your Apple ID at confirmation of purchase. A subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Manage or cancel it in your Apple ID settings. Collect monsters. Keep walking. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://acris.ai/monster-steps/privacy
StepChallenge
Transform your daily walks into engaging races with friends and groups. Track progress, compete on leaderboards, and stay connected through in-app messaging. Enjoy a private and fair experience with data from Apple Health.
- Race friends step-by-step
- Compare daily, weekly, and hourly stats
- Create and join groups for collective races
- Set up multi-day or monthly challenges
- Earn awards for streaks and top performance
- In-app messaging and customizable notifications
- Private and secure data sharing via Apple Health
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StepChallenge turns your everyday walking into a friendly race. RACE YOUR FRIENDS Add friends with a code or a link. Everyone runs on the same winding road toward today's finish line, so you can see at a glance who's ahead and how far you have to go to catch them. HEAD TO HEAD Open any friend to compare today, this week and your best hour side by side, with a running score of who's won more days this month. GROUPS Create a group for your family, colleagues or walking club. Invite friends or share the group code, and race together on one leaderboard. CHALLENGES Set up a step or distance challenge for a few days or a month, share the invite code, and follow the live leaderboard to the finish. The winner gets the trophy. AWARDS AND STREAKS Keep a run of days at number one, top the weekly board, and see who had the fastest hour. STAY IN TOUCH Message your friends, and get notified when someone passes you, sends a request, or a challenge is about to end. You choose which notifications you want. FAIR AND PRIVATE Steps come from Apple Health and manually entered steps never count. Only your daily totals are shared, and only with people you accept. Block or report anyone at any time, and delete your account whenever you like. Available in English and Arabic.
Screenshots
Verdict
The clearest difference is in-app purchases: StepChallenge at none against Cudex's 3. StepChallenge also leads on iOS requirement (17.0 vs 26.5). Cudex's advantage is ratings volume (6 vs 1). On price, rating, update cadence and ads 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. Cudex sells 3 in-app purchases, starting at $4.99 per month. StepChallenge asks for nothing beyond the download.
StepChallenge holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Cudex has 6 ratings behind it against 1, so its average is the more settled of the two.
Cudex ships an update weekly, StepChallenge every 4 days. Both last shipped on November 6, 2026.
| Parameter | Cudex | StepChallenge |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 6 — better | 1 |
| Update frequency | Weekly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, Apple Watch | iPhone, Apple Watch |
| Requires iOS | 26.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 31 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | Siraj Hasanov | Hassan . |
Customer experience
Cudex
StepChallenge
In-app purchases
Cudex
- Pro Month$4.991 Month
- Pro Year7 Days trial$29.991 Year
- Pro Lifetime$59.99
StepChallenge
No in-app purchases









