Quell Flex vs Blue Heron Pilates
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Quell Flex
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After pairing their Quell Flex devices to the Quell Flex app, users can: - Start and stop therapy - Control stimulation intensity - Check therapy status (e.g., time left in session) - Check device battery level - Review informational videos and other materials related to the devices * You should consult your physician before making changes to your chronic pain treatment plan.
Blue Heron Pilates
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At Blue Heron Pilates we provide high-quality Pilates instruction in a welcoming and supportive environment. We aim to help our clients achieve their fitness goals, improve their overall well-being, and cultivate a deeper mind-body connection. By offering a variety of classes and personalized sessions, we strive to inspire and guide individuals on their journey to optimal health and vitality.
Screenshots
Verdict
The clearest difference is update cadence: Blue Heron Pilates at every 4 months against Quell Flex's every 35 months. On price, ads, 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.
Quell Flex ships an update every 35 months, Blue Heron Pilates every 4 months. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.
| Parameter | Quell Flex | Blue Heron Pilates |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 35 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone |
| Requires iOS | 16.6 | 16.4 — better |
| Further details — not scored | ||
| Size | 23 MB | 113 MB |
| Age rating | 12+ | 4+ |
| Developer | NeuroMetrix, Inc. | Spotbee, Inc. |
In-app purchases
Quell Flex
No in-app purchases
Blue Heron Pilates
No in-app purchases
Questions
Is Quell Flex free?
Is Blue Heron Pilates free?
Do Quell Flex or Blue Heron Pilates have ads?
Which is updated more often, Quell Flex or Blue Heron Pilates?
Other comparisons
