Bowelog vs Alison
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bowelog
Easily log bowel movements with a single tap. Track stool type using the Bristol Scale, color, ease, and add notes. View historical data and patterns to share with your doctor. This private and ad-free tool helps monitor gut health.
- One-tap logging
- Bristol Stool Scale integration
- Customizable entry details
- Color-coded calendar view
- Frequency and interval statistics
- Doctor-friendly data sharing
- Offline functionality
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Log bowel movements in one tap. Bristol Scale, color, ease & notes — all on your iPhone, no account needed. The fastest gut health diary on the App Store. Free, private, no ads. Ever. Bowelog is the simplest way to track your bowel health. One tap logs an entry. No forms, no sign-up, no friction. Add details only when you want to. ONE TAP. DONE. Hit the button. Bowelog records the time and date instantly. That's all you need to do. Come back later to add stool type, color, ease, duration, blood, or notes — or don't. Your call. BRISTOL SCALE, BUILT IN The Bristol Stool Scale is the international medical standard used by gastroenterologists worldwide. Bowelog shows all 7 types with clear illustrations so you always log the right one. Types 3–4 → ideal Types 1–2 → constipation range Types 6–7 → diarrhea range Share this data with your doctor at your next appointment. TRACK WHAT MATTERS Each entry can include: · Stool type (Bristol Scale 1–7) · Color: normal, yellow, green, black, red · Ease of passing: very easy → very hard · Duration in minutes · Blood present (with medical reminder) · Free-text notes for your doctor A food diary connected to how you feel Log meals by ingredient — fruits, vegetables, dairy, sports nutrition, supplements — and start noticing patterns between food and symptoms over time. No calorie counting, no weighing — just what actually matters for understanding your gut. HISTORY & STATS · Color-coded calendar — see patterns at a glance · Full month-by-month history · Average interval between visits · Weekly frequency chart · Most common stool type this month 100% PRIVATE. ALWAYS. No account. No cloud. No tracking. No ads. Every entry stays on your iPhone or iPad only. Bowelog never sees your data — not a single entry. BUILT FOR REAL LIFE Managing IBS, Crohn's, colitis, or constipation? Or just want to keep an eye on your gut? Bowelog gives you exactly the data your doctor needs — without the complexity you don't. Dark mode. iPhone & iPad. Works offline, always. Available in: English, Russian, German, French, Spanish, Italian, Polish, Portuguese, Japanese, Korean. Bowelog is a personal tracking tool and does not provide medical advice or diagnosis. Consult your doctor for any medical concerns, especially if you notice blood in stool or persistent changes in bowel habits.
Alison
Track headaches, meals, water, and sleep with this personal journal. It offers observational insights into potential patterns without diagnosing or forecasting. Data remains on your device for privacy.
- Start and stop headache logging
- Log meals with ingredients
- Track water and sleep intake
- Optional Apple Watch integration
- Read-only Apple Health integration
- Optional weather data
- Generate clinic letters
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Alison is a personal headache journal. Headache on? Tap Start. Headache over? Tap Stop. Log meals, water, and sleep as they happen. The journal is what you wrote. Nothing more. Alison is not a medical device. It does not diagnose, treat, cure, or prevent migraine or any condition. It does not forecast. Talk to a clinician about symptoms. No account. No ads. No tracking. Your journal stays on your device. Pairs are observational. When the same thing has shown up with three of your migraine days, Alison shows a note. That is what has shown up together. It is not a cause. It is not a forecast. It is not a trigger test. Free download. Keep is a monthly subscription through Apple: 1-month free trial for new subscribers, then $0.99/month (local price varies). For the first 24 hours after you first open Alison, nothing waits on Keep. The journal stays readable without Keep. After the first 24 hours, new Start, Food, and Health pull need Keep. When the trial or Keep ends, those services end. Restore on the Keep screen. Cancel in Apple Subscriptions. WHAT YOU CAN DO • Start and Stop a headache • Log meals with ingredients. Search, scan a barcode, or type. Open Food Facts supplies the ingredients. Not a trigger test. • Log water and sleep. Water in ml or oz: you choose under Units. • Optional Apple Watch: Start and intensity • Optional Apple Health: read-only. Alison reads food, water, sleep, menstrual flow, caffeine, and alcohol, only what you allow on Apple's sheet. Deny and the journal still works. • Optional weather: tap Resample for a pressure and humidity forecast from MET Norway (the Norwegian Meteorological Institute). It is a forecast estimate, not a measurement, and it does not diagnose anything. If the weather feed is unavailable, the journal still works. Deny location and the journal still works. Based on data from MET Norway. Values are grouped and simplified by Alison. • Clinic letter: after 5 episodes, 8 meals, and 7 days, share, copy, or save a PDF of what you logged to hand to your clinician. It restates your log. It is not a diagnosis. WHAT ALISON DOES NOT DO • Diagnose • Forecast a migraine • Give medical advice • Replace a clinician • Show ads • Upload your journal to Night Orders ON YOUR PHONE • Alison has no account and no Alison server. Your journal, food log, symptom entries and photos stay on your device, and we do not collect them. Alison 1.2 does not sync through iCloud. • We do not sell your data, use it for ads, or track you across apps or sites. • Weather is optional and only runs when you tap Resample, never in the background. Your phone rounds your location to about 11 km (7 miles) and sends it directly to MET Norway in Oslo, Norway. MET Norway receives your IP address with the request, as any web server does. Night Orders Studio LLC does not receive or store your location. • Food lookups send your search text or barcode to Open Food Facts, which sees your network address when called. No journal rows are sent. Details: nightorders.app/privacy-alison.html • Deleting the app deletes the journal on the phone. Support: support@nightorders.app Site: https://nightorders.app Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nightorders.app/privacy-alison.html
Screenshots
Verdict
The clearest difference is monetization model: Bowelog at free against Alison's free with in-app purchases. Bowelog also leads on ratings volume (8 vs 1). Alison's advantage is update cadence (every 9 days vs every 6 weeks) and device support (4 vs 2). On price, rating, ads and in-app purchases 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 — 4.9 for Bowelog against 5.0 for Alison. That said, the two scores are not equally well evidenced: Bowelog has 8 ratings behind it against 1, so its average is the more settled of the two.
Bowelog ships an update every 6 weeks, Alison every 9 days. The most recent releases landed on October 8, 2026 and October 14, 2026 respectively.
| Parameter | Bowelog | Alison |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (8 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Every 6 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 15 MB | 16 MB |
| Age rating | 4+ | 12+ |
| Developer | Stas Morozov | Paturious Grey |
Customer experience
Bowelog
Alison
In-app purchases
Bowelog
No in-app purchases
Alison
No in-app purchases









