# Affinity vs MoonStep Stairs Habit Tracker

The clearest difference is price: Affinity at Free against MoonStep Stairs Habit Tracker's $0.99. Affinity also leads on iOS requirement (13.0 vs 17.0). MoonStep Stairs Habit Tracker's advantage is update cadence (weekly vs every 3 months). On ads, in-app purchases and device support there is nothing between them.

Affinity is free to download; MoonStep Stairs Habit Tracker costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Affinity ships an update every 3 months, MoonStep Stairs Habit Tracker weekly. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Affinity | MoonStep Stairs Habit Tracker |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | — | Paid |
| Size | 27 MB | 6 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Basavaraja Veerabhadrappa](https://appshunter.io/developer/1857244444) | [福荣 贺](https://appshunter.io/developer/6789378644) |

## What reviewers say

### Affinity

[App page](https://appshunter.io/ios/app/affinity-love-date-diary/id6758619407)

**Features:** macOS Compatibility

**In-app purchases:** none


### MoonStep Stairs Habit Tracker

[App page](https://appshunter.io/ios/app/moonstep-stairs-habit-tracker/id6800529419)

This app transforms stair climbing into a rewarding journey to the Moon. Log your progress manually, via timed sessions, or by syncing with Health data. Earn rewards and track your long-term achievements in this calm habit-building tool.

**Highlights:** Track daily and weekly stair goals, Manual or timed climb logging, Sync with Health data, Gentle habit reminders, Unlock badges and ranks, Home and Lock Screen widgets, Local data storage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Affinity free?

Affinity is free to download, with no in-app purchases.

### Is MoonStep Stairs Habit Tracker free?

MoonStep Stairs Habit Tracker costs $0.99, with no in-app purchases.

### Do Affinity or MoonStep Stairs Habit Tracker have ads?

Neither Affinity nor MoonStep Stairs Habit Tracker shows ads.

### Which is updated more often, Affinity or MoonStep Stairs Habit Tracker?

Affinity ships an update every 3 months, and MoonStep Stairs Habit Tracker weekly. Most recently, Affinity was updated on October 28, 2026 and MoonStep Stairs Habit Tracker on October 31, 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.*