# Step Lynx Activity Tracker vs Ambryx

The clearest difference is update cadence: Step Lynx Activity Tracker at every 2 weeks against Ambryx's monthly. Ambryx's advantage is iOS requirement (18.6 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Step Lynx Activity Tracker sells 1 one-off in-app purchase and Ambryx sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Step Lynx Activity Tracker ships an update every 2 weeks, Ambryx monthly. The most recent releases landed on September 8, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Step Lynx Activity Tracker | Ambryx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/step-lynx-activity-tracker/id6756685254/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 10 MB | 23 MB |
| Requires iOS | 26.0 | **18.6** |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [David Conroy](https://appshunter.io/developer/523006015) | [Iso Lift, LLC](https://appshunter.io/developer/1814384999) |

## What reviewers say

### Step Lynx Activity Tracker

[App page](https://appshunter.io/ios/app/step-lynx-activity-tracker/id6756685254)

This app provides a focused way to track your daily activity, including steps, distance, and calories burned, directly from your Lock Screen, Home Screen, and Apple Watch. It offers clear progress visualization, goal streaks, and customizable notifications to keep you motivated without overwhelming you.

**Highlights:** Live step count, distance, and calorie tracking, Lock Screen and Home Screen widgets, Apple Watch app and complications, Goal rings and streaks, Badge collection for milestones, Optional daily check-in nudges, Privacy-focused with no account required

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Mode | $0.99 | one-time |


### Ambryx

[App page](https://appshunter.io/ios/app/ambryx/id6758559825)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Ambryx Free Trial | Free | one-time |
| StrideFlow Pro | $2.99 | one-time |


## Frequently asked questions

### Is Step Lynx Activity Tracker free?

Step Lynx Activity Tracker is free to download, with in-app purchases available.

### Is Ambryx free?

Ambryx is free to download, with in-app purchases available.

### Do Step Lynx Activity Tracker or Ambryx have ads?

Neither Step Lynx Activity Tracker nor Ambryx shows ads.

### Which is updated more often, Step Lynx Activity Tracker or Ambryx?

Step Lynx Activity Tracker ships an update every 2 weeks, and Ambryx monthly. Most recently, Step Lynx Activity Tracker was updated on September 8, 2026 and Ambryx on September 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*