Spark SLO vs Stability Studio
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spark SLO
This app offers a supportive environment for yoga practice, encouraging freedom of expression, playfulness, and compassion. It aims to foster personal growth through inward exploration in a judgment-free space.
- Supportive family-based yoga
- Freedom of expression
- Playfulness and compassion
- Inward exploration
- Judgment-free space
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Spark Yoga is a positive & supportive family based on a foundation of integrity and PURE JOY. Our hope is that each practitioner experiences the wonder of freedom of expression, maintaining a sense of playfulness and compassion throughout the profound growth process that unfolds with inward exploration. At Spark, we encourage you to be curious, let go of self-doubt, and celebrate YOU in a space free of judgement, ego, or negativity.
Stability Studio
This app offers on-demand Pilates Reformer and Barre fitness classes. Experience low-impact workouts with high-impact results, fostering fitness and community.
- Pilates Reformer classes
- Barre Fitness classes
- On-demand workouts
- Low-impact fitness
- Community focus
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Home to Stability Studio, where we bring Pilates Reformer and Barre Fitness to California’s Central Coast. Located in Orcutt, CA and owned by local chiropractor Dr. Doug Wilson and his wife Mary, Stability is an intimate, low-impact studio with high impact results. Fitness. Community. Stability.
Screenshots
Verdict
Spark SLO and Stability Studio both sit at 5.0 stars, but that hides the real split: 100% of Spark SLO's written reviews are positive against 50% of Stability Studio's. Spark SLO also leads on ratings volume (555 vs 112). Stability Studio's advantage is monetization model (free vs ad-supported). On price, rating, update cadence and ads 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.
On the App Store both sit at effectively the same score — 5.0 for Spark SLO against 5.0 for Stability Studio. Both are backed by a comparable volume of ratings — 555 and 112 respectively. Written reviews are what separate them: 100% of Spark SLO's written reviews are positive against 50% of Stability Studio's.
Spark SLO ships an update monthly, Stability Studio every 3 weeks. Both last shipped on November 7, 2026.
| Parameter | Spark SLO | Stability Studio |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (555 ratings) | 5.0 (112 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 50.0% of reviews |
| Number of ratings | 555 — better | 112 |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone | iPhone |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 38 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Nick and Steph Young LLC | Stability Fitness |
Customer experience
Spark SLO
Stability Studio
In-app purchases
Spark SLO
No in-app purchases
Stability Studio
No in-app purchases
Questions
Is Spark SLO free?
Is Stability Studio free?
Which has better reviews, Spark SLO or Stability Studio?
Do Spark SLO or Stability Studio have ads?
Which is updated more often, Spark SLO or Stability Studio?
Other comparisons
