Regularity vs Karu
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Regularity
Effortlessly track digestive health and bowel movements on iPhone and Apple Watch. Log urgency, pain, and consistency with optional notes and markers for diet or medication changes. Generate reports and export data to understand patterns and share with your doctor.
- Private bowel movement logging
- Track urgency, pain, amount, leakage, blood
- Bristol Stool Scale consistency
- Log medication and diet changes
- View frequency and consistency trends
- Export data to PDF and Apple Health
- One-time purchase for full features
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Track your digestive health privately and effortlessly. Log bowel movements in seconds from your iPhone or Apple Watch — built for people managing IBS, IBD, Crohn's, colitis, or anyone who wants a clear record to understand their patterns and share with their doctor. No subscription, ever. Regularity is a one-time purchase. FAST, PRIVATE LOGGING One tap to record an event. Add detail only when it's useful: • Urgency level • Pain level • Amount (small, average, large) • Leakage • Blood presence • Bristol Stool Scale consistency (Type 1–7) • Free-text notes MARK WHAT CHANGES Log a medication start, diet change, or procedure as a marker on your timeline. It appears as a line across your charts, so you can see how your patterns shifted before and review with your doctor. REPORTS & EXPORT • View your daily activity at a glance — frequency, consistency, urgency, pain, amount, blood, and leakage trends. • Export today's summary as a PDF or send your events to Apple Health. REGULARITY FULL — One-Time Purchase Unlock everything with a single payment. No subscription, ever: • Choose any earlier day (the free plan covers today) • Weekly, monthly, 6-month, and yearly reports • "Since marker" before-and-after comparisons across every metric • Markers on long-range charts and in exported PDF reports • Full-range PDF reports • Reminders 100% PRIVATE • No accounts, no sign-in • No analytics, ads, or telemetry • HealthKit is opt-in and export-only — your data never leaves your device unless you choose to share it Requires iPhone with iOS 18 or later. Apple Watch with watchOS 10.5 or later recommended for watch capture.
Karu
This app uses a minimalist timer to help you focus. As you complete focus sessions, virtual grass grows, and you can then 'cut' it. Unlock additional features to grow trees and flowers.
- Minimalist focus timer
- Virtual grass growth
- Grass cutting mechanic
- Mow mode for free cutting
- Unlockable garden elements (trees, flowers)
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A minimalist focus timer. Set timer, and wait for the grass to grow. Then enjoy the cut. Bonus - Mow mode. Cut as you please and earn "zen" points. Bonus unlock: Grow trees and flowers. $1.99 Terms: https://sites.google.com/view/talk-or-not/home
Screenshots
Verdict
The clearest difference is iOS requirement: Regularity at 18.0 against Karu's 26.5. On price, rating, ratings volume and ads 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. Regularity sells 2 one-off in-app purchases and Karu sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Regularity against 5.0 for Karu. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
| Parameter | Regularity | Karu |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Requires iOS | 18.0 — better | 26.5 |
| Further details — not scored | ||
| Size | 9 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Creative Stack, LLC | Talk or Not, Inc. |
Customer experience
Regularity
Karu
In-app purchases
Regularity
- 14-Day Free TrialFree
- Regularity Full Access$9.99
Karu
- Lifetime Premium$2.99









