Card◆IO vs ACERUN US
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Card◆IO
Read full descriptionHide full description
With Card◆IO, every card drawn becomes a fitness challenge. One deck, 52 cards, varied exercises, and a different workout every time. Whether you want a quick session or a bigger challenge, Card◆IO turns every draw into a fun, intense, and unpredictable workout. Key Features • 52 cards = 52 full-body fitness challenges • A different workout every draw thanks to randomness • Three difficulty levels so you can progress at your own pace • In-workout progress tracking to stay motivated • Workout history and consistency tracking • Daily reminders to help you stay on track • Sync your workouts with Apple Health • Optimized for the latest iOS versions with Liquid Glass & Apple Intelligence Premium Features • Customize your exercises to build workouts that fit your goals • Enjoy a smoother ad-free experience • Unlock more control over your training Whether you're a beginner or more advanced, Card◆IO helps turn every workout into a simple, effective, and motivating challenge. Ready to take on the deck, one card at a time? Legal Links • Terms of Use (EULA): https://www.card-io.app/terms • Privacy Policy: https://www.card-io.app/privacy • Support: https://www.card-io.app/support
ACERUN US
This running app uses AI to create personalized, adaptive training plans. It analyzes numerous factors to help runners achieve their goals, with compatibility for popular smartwatches.
- AI-driven personalized training plans
- Adaptive Coaching Engine (ACE)
- Real-time performance analysis
- Apple Watch compatibility
- Garmin compatibility
- Evolving training based on goals
Read full descriptionHide full description
ACERUN is an immersive mobile coaching app for runners. Its AI-driven platform delivers a high level of real-time personalization. ACE (Adaptive Coaching Engine) analyzes thousands of variables to build a training plan that evolves with each runner's goals. Apple Watch & Garmin compatibility Acerun currently works with Apple Watch & Garmin. Support for more of your favorite devices and platforms will be added in upcoming updates. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: ACERUN US at every 8 days against Card◆IO's every 3 weeks. On price, ads, in-app purchases 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
Both are free to download. Card◆IO sells 3 in-app purchases, starting at $2.99 per 7 days and ACERUN US sells 1 in-app purchase, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
Card◆IO ships an update every 3 weeks, ACERUN US every 8 days. The most recent releases landed on October 12, 2026 and October 17, 2026 respectively.
| Parameter | Card◆IO | ACERUN US |
|---|---|---|
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| Update frequency | Every 3 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, Apple Watch — better |
| Requires iOS | 18.2 | 18.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 128 MB |
| Age rating | 4+ | 12+ |
| Developer | Mathilde Henriot | RunPad |
In-app purchases
Card◆IO
- Premium$2.997 Days
- Premium$8.991 Month
- Premium$69.991 Year
ACERUN US
- ACERUNONE$9.991 Month









