KOR Studio vs BellyMystery
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
KOR Studio
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Welcome to KΕR, a boutique Pilates studio built on connection, care, and the power of movement. At KΕR, we believe strength is more than physical β itβs about showing up for yourself, growing with others, and building a body that supports you for life. Our classes are designed to help you move better, feel stronger, and stay well for the long run. Whether you're just beginning or deepening your practice, you'll be supported by expert instructors and a welcoming community every step of the way. Download the KΕR app to easily book classes, manage your schedule, and stay connected with everything happening in the studio. Your journey to long term strength and wellbeing starts here.
BellyMystery
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BellyMystery helps you notice patterns between what you eat and how you feel, without slowing down your day. Log a meal in under 30 seconds with a photo, and Belly Mystery identifies the likely ingredients for you. Log a symptom or a stool entry (Bristol scale) in under 15 seconds. Add a quick note about illness, medication, or travel so those get factored in too. Behind the scenes, BellyMystery's statistical engine looks for correlations between what you've logged, entirely on your device. When it finds something worth a second look, an AI-generated summary explains it in plain language, and always frames it as a pattern worth discussing with your doctor. BellyMystery never diagnoses you. When you're ready to talk to a doctor, export a clean PDF summary of your patterns and full diary directly from the app to share however you like. Why BellyMystery: Fast logging: meals, symptoms, and stools take seconds, not minutes. Works offline: logging never waits on the network. Photos are analyzed when you're back online. Private by design: no account, no login. Your diary lives on your device. Only a meal photo (to identify ingredients) and a computed summary of your patterns (to generate narration) are ever sent off-device, and neither is stored afterward. No ads, no trackers, no data brokers. BellyMystery includes a short free trial. After that, a single one-time purchase unlocks the app for life. No subscriptions. BellyMystery is not a medical device and does not diagnose, treat, or cure any condition. It's a tool for noticing patterns in your own data to discuss with a healthcare professional.
Screenshots
Verdict
The clearest difference is in-app purchases: KOR Studio at none against BellyMystery's 1. BellyMystery's advantage is update cadence (every 5 days vs every 6 months). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. BellyMystery sells 1 one-off in-app purchase. KOR Studio asks for nothing beyond the download.
KOR Studio ships an update every 6 months, BellyMystery every 5 days. The most recent releases landed on September 26, 2026 and October 29, 2026 respectively.
| Parameter | KOR Studio | BellyMystery |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 5 days β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone | iPhone, iPod β better |
| Requires iOS | 16.0 | 15.0 β better |
| Further details β not scored | ||
| Size | 64 MB | 40 MB |
| Age rating | 12+ | 4+ |
| Developer | KOR Studio | Ola Halvorsen |
In-app purchases
KOR Studio
No in-app purchases
BellyMystery
- English$12.99
Questions
Is KOR Studio free?
Is BellyMystery free?
Do KOR Studio or BellyMystery have ads?
Which is updated more often, KOR Studio or BellyMystery?
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