BellySignal vs MigraineSpy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BellySignal
This app helps you track your digestive health by logging stool type, urine color, water intake, and food habits. Review trends, export summaries, and identify potential patterns related to your diet and lifestyle. It's a personal tool to help you understand your body better.
- Log Bristol stool types
- Track urine color and water intake
- Record food and habit details
- Note symptoms like pain and bloating
- Review digestive trends
- Export 90-day PDF summaries
- Local data storage
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BellySignal is a poop tracker and bowel diary for recording your daily digestive patterns. Log stool form with the Bristol stool chart, urine color, water intake, and food and habits in one place. Start without an account. KEEP A BOWEL MOVEMENT DIARY Choose a Bristol stool type from 1 to 7, record color, and note blood or mucus you notice. Add observations such as belly pain, bloating, urgency, or straining to keep a useful record over time. TRACK WATER, FOOD AND HABITS Log water toward your daily goal and record urine color. Add coffee, alcohol, dairy, spicy food, stress or poor sleep to look back at what happened around changes in your digestion. A pattern does not prove that a food caused a symptom. REVIEW TRENDS AND EXPORT A PDF See your entries together in Trends. Export a PDF summary of the last 90 days from Settings and choose whether to share it at a medical appointment. You can also export a backup file and restore it later. START WITHOUT SIGNING IN Your diary is stored locally by default. An account is optional and does not currently sync your health diary between devices. You choose where exported files go and whether to enable health-platform integration. Some health values, including stool type, symptoms and manually entered weight, are sent to PostHog, which is on by default. The Usage analytics switch controls PostHog only. Firebase Analytics receives usage events without those health values and stays active even when the switch is off. Deleting local entries does not automatically delete analytics data that has already been sent. You can delete your diary entries in Settings. BellySignal is a self-recording tool, not a medical device. It does not diagnose IBS, food intolerance or other conditions, determine the cause of symptoms, or provide treatment. Discuss concerns with a qualified healthcare professional. Privacy Policy: https://bellysignal.com/en/legal/privacy/ Terms of Service: https://bellysignal.com/en/legal/terms/
MigraineSpy
Easily track migraines and related symptoms with a single tap. Log start and end times, optional details like intensity, symptoms, and medications, and view historical data in a clear calendar format. Customize the app's appearance for comfort during an attack.
- One-tap migraine start/end logging
- Optional symptom and medication tracking
- Calendar view with intensity visualization
- Streak tracking for clear and consecutive days
- Customizable themes and screen dimming
- On-device data storage with free backups
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Most migraine trackers assume you can fill in a form mid-migraine. MigraineSpy assumes you are having a migraine right now and cannot. It's designed to be simple so you can focus on recovery. Open it and there is one button: Migraine started. Tap it and you are done. Tap End migraine when it passes. Intensity, symptoms, notes and medications are all optional, and you can add them later, or never — the entry is already saved. ONE TAP, NOTHING REQUIRED The only thing MigraineSpy ever needs is a start time. Nothing is mandatory, nothing blocks you, and there is no form to complete before your migraine counts. Elapsed time is worked out from when you started, so an entry survives a force quit, a restart, or a flat battery. SYMPTOMS THAT NEVER BECOME A MIGRAINE Aura on its own. A wave of nausea. A visual disturbance that passes. These get their own kind of entry, so they stay part of your history without being counted as a migraine day and quietly inflating every number you watch. A REAL CALENDAR 1 Month, 30 days, 12 weeks, 20 weeks, 6 months or 12 months, each with a count for that period. Tap any day to see what happened. Intensity runs gold through orange to red, so a bad stretch is visible at a glance. STREAKS IN BOTH DIRECTIONS Days clear, and days in a row. Both matter, and both are there. MEDICATIONS, HONESTLY RECORDED What you took, what you took it for, and whether you noted that it helped, did nothing, or you are not sure. No claims, no scoring — just what you observed. COLOUR THAT GETS OUT OF THE WAY The app can look bright at rest and mute itself the moment a migraine starts. Or stay bright. Or stay calm. There is a dark theme, a light theme, an ultra dim mode for during an attack, and a screen dimmer you can switch on mid-migraine. Lock to portrait is on by default, because a screen that turns when you roll over is the last thing you need. YOUR JOURNAL STAYS ON YOUR DEVICE There is no account, no sign-in, and nothing is sent to a server. Backup and restore are free and always will be — save a file wherever you like, and use it to move everything to a new phone. ONE OPTIONAL PURCHASE PDF export is a one-time purchase: a readable summary of any date range, to keep, print, or take to an appointment. Everything else, including backups, stays free. There is no subscription. MigraineSpy is a personal journal. It does not give medical advice and cannot diagnose or treat anything. If you are worried about your health, talk to a doctor.
Screenshots
Verdict
The clearest difference is in-app purchases: BellySignal at none against MigraineSpy's 4. BellySignal also leads on iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and update cadence 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. MigraineSpy sells 4 one-off in-app purchases. BellySignal asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for BellySignal against 5.0 for MigraineSpy. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
BellySignal ships an update weekly, MigraineSpy every 10 days. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.
| Parameter | BellySignal | MigraineSpy |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (1 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 2 — better | 1 |
| Update frequency | Weekly — better | Every 10 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 67 MB | 38 MB |
| Age rating | 4+ | 4+ |
| Developer | Jeonghyeon Yu | ASHA TECHNOLOGY LLC |
Customer experience
BellySignal
MigraineSpy
In-app purchases
BellySignal
No in-app purchases
MigraineSpy
- Leave a Tip!$0.99
- A Bigger Tip$2.99
- PDF Unlock$4.99
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- A Very Generous Tip!$9.99









