Headstrong vs SLO x FORM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Headstrong
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For members of Headstrong to reserve their place in a class, sign up for gym events, and general account management like updating headshots and credit card on file.
SLO x FORM
Easily browse and purchase class packs or membership options. View the class schedule, filter by type, and manage your reservations to stay organized and committed to your fitness goals.
- Purchase class packs and memberships
- Browse class schedule
- Filter classes by type
- Manage reservations
- Stay organized with fitness goals
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Features: -Purchase Class Packs and Memberships Easily browse and purchase our class packs or membership options -View our schedule Filter classes by type to find the perfect fit for your routine. -Manage your reservations Book your class reservations with ease. Keep track of your upcoming classes and manage your schedule to stay organized and committed to your fitness goals.
Screenshots
Verdict
The clearest difference is ads: SLO x FORM at none against Headstrong's shown. Headstrong's advantage is device support (3 vs 1). On price, update cadence, in-app purchases and iOS requirement 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.
Headstrong ships an update monthly, SLO x FORM every 3 weeks. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.
| Parameter | Headstrong | SLO x FORM |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (27 ratings) — better |
| Number of ratings | — | 27 — better |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15 — better | 16.0 |
| Further details — not scored | ||
| Size | 93 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Headstrong Fit, LLC | SLO x FORM |
In-app purchases
Headstrong
No in-app purchases
SLO x FORM
No in-app purchases
Questions
Is Headstrong free?
Is SLO x FORM free?
Do Headstrong or SLO x FORM have ads?
Which is updated more often, Headstrong or SLO x FORM?
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