Surutto vs Unki
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Surutto
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Remember when you last went. Surutto is a simple bowel diary: record the date, time, and stool type, then check them later. Records stay on your device. There are no ads and no account. Recording, calendar, 30-day analysis, and 7-day or 14-day PDF are free. Record stool type, date and time, color, amount, symptoms, photos, and notes. FREE FEATURES - Record bowel movements without remembering the shape - Independent symptom and medication entries, saved medications - Home Screen widget - Add, edit, and delete records - Calendar - 30-day analysis and 14-day trend - 7-day or 14-day PDF - Reminders - Dark mode SURUTTO PRO Pro is a one-time purchase. - 90-day and 365-day analysis - Weekday, time-of-day, and symptom summaries - Custom PDF ranges up to 90 days (14 days with photos) - All-time CSV export - Backup and restore for all records and photos MEDICAL NOTICE The analysis only summarizes entries you provide. It is not a diagnosis, treatment, or medical advice. Contact a healthcare professional if symptoms continue or you have concerns. PRIVACY Records, photos, and settings are not automatically sent to an external server. There are no ads, analytics, or tracking. PDF, CSV, and backup files leave the device only when you choose to share them.
Unki
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Unki is a simple bowel movement tracker for everyday personal logging. You do not need to write long notes. Choose the stool shape that feels closest: Pebbly, Normal, Soft, or Watery. Each record is saved with the time, so you can look back later. The Today screen shows your daily count at a glance. The calendar helps you review each day, and the detail view lets you edit the time or delete a record when needed. The Trends screen shows simple summaries, including days with records, days without records, average count, stool shape mix, common time of day, and daily record trends. Unki also supports Apple Watch. You can record from your watch and review the history later on your iPhone. A watch face complication can open the Watch app quickly. Main features: - Quick stool shape logging - Daily bowel movement count - Calendar history - Edit record time - Delete records - Simple trend summaries - Stool shape mix - Common time-of-day view - Apple Watch recording - Watch face complication shortcut Unki is not a medical diagnosis app and does not provide medical advice. Please consult a healthcare professional if you have ongoing symptoms or health concerns.
Screenshots
Verdict
The clearest difference is in-app purchases: Unki at none against Surutto's 1. Unki also leads on update cadence (weekly vs fortnightly). Surutto's advantage is iOS requirement (15.1 vs 17.0). On price, ads and device support 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. Surutto sells 1 one-off in-app purchase. Unki asks for nothing beyond the download.
Surutto ships an update fortnightly, Unki weekly. The most recent releases landed on October 4, 2026 and October 10, 2026 respectively.
| Parameter | Surutto | Unki |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Weekly β better |
| Ads | No | No |
| In-app purchases | Yes | No β better |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Requires iOS | 15.1 β better | 17.0 |
| Further details β not scored | ||
| Size | 40 MB | 13 MB |
| Age rating | 12+ | 4+ |
| Developer | KAZUNORI HARADA | Daisaku Mori |
In-app purchases
Surutto
- Surutto Pro (One-Time)$4.99
Unki
No in-app purchases








