CrossFit Spero vs Kilo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CrossFit Spero
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.
- Class reservation
- Gym event sign-up
- Account management
- Profile picture updates
- Payment information management
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For members of CrossFit Spero to reserve their place in a class, sign up for gym events, and general account management like updating headshots and credit card on file.
Kilo
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.
- Reserve classes and appointments
- View workout plans
- Update profile information
- Manage payment methods
- Manage member package
- Sign documents
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An app for athletes and gym attendees that you can use to reserve classes, manage appointments, and view workouts. Update your profile photo, contact info, and payment methods as needed. -Schedule and Reserve your classes and appointments -Sign Documents -Update Payment Methods -Manage Your Member Package -View Workouts
Screenshots
Verdict
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.
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.
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.
| Parameter | CrossFit Spero | Kilo |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (18 ratings) — better | 2.4 (34 ratings) |
| Positive reviews | — | 30.8% of reviews |
| Number of ratings | 18 | 34 — better |
| Update frequency | Every 5 weeks — better | Every 5 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15 | 13.4 — better |
| Further details — not scored | ||
| Size | 89 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | CrossFit Spero | KILO, INC. |
Customer experience
CrossFit Spero
Kilo
In-app purchases
CrossFit Spero
No in-app purchases
Kilo
No in-app purchases
