HKStepMonitor vs Twinsi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HKStepMonitor
This utility app displays daily and weekly step counts tracked by your iPhone and Apple Watch. It presents your step data in a clear graph format, making it easy to monitor your activity over the past seven days.
- Displays step counts from Apple HealthKit
- Tracks steps from iPhone and Apple Watch
- Shows daily and weekly step totals
- Presents data in a graph format
- Monitors activity for the past 7 days
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Simple utility for iPhone that uses Apple HealthKit to display the number of steps that were measured by the iPhone and Apple Watch. Displays steps measured for the past 7 days with a total for the week and daily totals in a graph format. Please enjoy this simple and handy tool to easily find and monitor your steps for the week and the day.
Twinsi
This app uses a digital twin that visually reflects your exercise habits to keep you motivated and accountable. Watch your companion grow stronger with consistent activity and celebrate your progress through visual cues and rewards.
- Personalized digital twin
- Visual progress tracking
- Activity-based growth
- Workout momentum building
- Reward system
- Habit formation support
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Twinsi is your AI fitness companion that makes exercising consistently feel personal, visual, and rewarding. Create your Twinsi — a digital twin that mirrors your training habits. When you move, it glows and grows stronger. When you skip, it droops. It’s a fun and motivating way to see your progress and stay accountable without guilt. Track your workouts and build momentum over time: - Stay motivated with a companion that evolves with you - Turn activity into a clear, satisfying streak you can maintain - Celebrate wins with rewards and progress moments Whether you’re getting back into a routine or pushing for new goals, Twinsi helps you build the habit — one workout at a time.
Screenshots
Verdict
The clearest difference is update cadence: Twinsi at every 4 days against HKStepMonitor's every 21 months. Twinsi also leads on ratings volume (31 vs 2). On price, rating, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for HKStepMonitor against 4.9 for Twinsi. That said, the two scores are not equally well evidenced: Twinsi has 31 ratings behind it against 2, so its average is the more settled of the two.
HKStepMonitor ships an update every 21 months, Twinsi every 4 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.
| Parameter | HKStepMonitor | Twinsi |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.9 (31 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 | 31 — better |
| Update frequency | Every 21 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 1 MB | 118 MB |
| Age rating | 4+ | 17+ |
| Developer | Richard Armstrong | Nutmeg AI, Inc. |
Customer experience
HKStepMonitor
Twinsi
In-app purchases
HKStepMonitor
No in-app purchases
Twinsi
No in-app purchases
