# CrossFit Spero vs Kilo

The clearest difference is rating: CrossFit Spero at 4.8 against Kilo's 2.4. CrossFit Spero also leads on update cadence (every 5 weeks vs every 5 months). Kilo's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, ratings volume, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CrossFit Spero holds the better App Store score, 4.8 against 2.4. Both are backed by a comparable volume of ratings — 18 and 34 respectively.

CrossFit Spero ships an update every 5 weeks, Kilo every 5 months. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | CrossFit Spero | Kilo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (18 ratings)](https://appshunter.io/ios/app/crossfit-spero/id1532658997/reviews)** | [2.4 (34 ratings)](https://appshunter.io/ios/app/kilo-staff/id6478198764/reviews) |
| Number of ratings | 18 | **34** |
| Positive reviews | — | 30.8% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 5 months |
| Monetization | Ad-supported | **Free** |
| Size | 89 MB | 13 MB |
| Requires iOS | 15 | **13.4** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CrossFit Spero](https://appshunter.io/developer/1706859147) | [KILO, INC.](https://appshunter.io/developer/1495673990) |

## What reviewers say

### CrossFit Spero

[App page](https://appshunter.io/ios/app/crossfit-spero/id1532658997)

This app allows members of a specific gym to book spots in classes, register for gym events, and manage their personal accounts. Users can update their profile pictures and payment information.

**Highlights:** Class reservation, Gym event sign-up, Account management, Profile picture updates, Payment information management

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### Kilo

[App page](https://appshunter.io/ios/app/kilo-staff/id6478198764)

This app allows gym-goers and athletes to manage their fitness journey. Users can reserve classes, book appointments, and access workout plans. It also provides tools to update personal information and payment details.

**Highlights:** Reserve classes and appointments, View workout plans, Update profile information, Manage payment methods, Manage member package, Sign documents

**In-app purchases:** none


## Frequently asked questions

### Is CrossFit Spero free?

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

### Is Kilo free?

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

### Which has better reviews, CrossFit Spero or Kilo?

CrossFit Spero is rated higher. CrossFit Spero averages 4.8 out of 5 from 18 ratings, while Kilo averages 2.4 from 34 ratings.

### Do CrossFit Spero or Kilo have ads?

CrossFit Spero shows ads; Kilo does not.

### Which is updated more often, CrossFit Spero or Kilo?

CrossFit Spero ships an update every 5 weeks, and Kilo every 5 months. Most recently, CrossFit Spero was updated on November 3, 2026 and Kilo on November 8, 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.*