# Zeroing In vs SierraFiiT

The clearest difference is ratings volume: SierraFiiT at 5 against Zeroing In's 1. SierraFiiT also leads on device support (4 vs 2). On price, rating, update cadence and ads there is nothing between them.

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 Zeroing In against 5.0 for SierraFiiT. That said, the two scores are not equally well evidenced: SierraFiiT has 5 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 10, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | Zeroing In | SierraFiiT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/zeroing-in/id6753683620/reviews) | [5.0 (5 ratings)](https://appshunter.io/ios/app/sierrafiit/id6755126436/reviews) |
| Number of ratings | 1 | **5** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Free | Free |
| Size | 31 MB | 203 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Zer0 In LLC](https://appshunter.io/developer/1839300747) | [Arcturus Incorporated](https://appshunter.io/developer/1852079415) |

## What reviewers say

### Zeroing In

[App page](https://appshunter.io/ios/app/zeroing-in/id6753683620)

Easily book fitness classes and manage your membership from your device. Make reservations, join waitlists, and check your profile status on the go.

**Highlights:** Book fitness classes, Manage membership status, Join waitlists, Check profile, Easy reservations

**In-app purchases:** none


### SierraFiiT

[App page](https://appshunter.io/ios/app/sierrafiit/id6755126436)

This comprehensive health and fitness app helps you track workouts, nutrition, sleep, and hydration. It offers personalized fitness plans, mindfulness practices, and progress reports to keep you motivated and on track towards your wellness goals.

**Highlights:** Total health tracking (workouts, steps, sleep, hydration), Personalized fitness plans and challenges, Smart nutrition logging, Mind and body wellness practices, Insightful progress reports, Supportive community features

**Features:** Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Zeroing In free?

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

### Is SierraFiiT free?

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

### Which has better reviews, Zeroing In or SierraFiiT?

Zeroing In and SierraFiiT are both rated 5.0 out of 5 on the App Store, from 1 and 5 ratings respectively.

### Do Zeroing In or SierraFiiT have ads?

Neither Zeroing In nor SierraFiiT shows ads.

### Which is updated more often, Zeroing In or SierraFiiT?

Zeroing In ships an update every 3 weeks, and SierraFiiT every 3 weeks. Most recently, Zeroing In was updated on October 10, 2026 and SierraFiiT on October 8, 2026.

---

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