Master Notes vs PicoCal
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Master Notes
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A safety place for your secret contents like secret notes and images, passwords. This app hold your contents encoded in the phone memory offline. You can: - lock the whole application, and you can only unlock it with biometric authentication. If your application go to background or you quit, on the next open will request the authentication. - lock your notes individually with biometric authentication or unique password. - use the app like a simple notes app or gallery app, you do not have to lock it if you don't want. - choose light or dark mode and there are a several different colour palettes for your app color. Terms of Use && Privacy: http://mahldev.com/masterapps/terms.html
PicoCal
This app syncs your iCloud calendar to Apple Widgets and Apple Watch Complications. It also tracks your daily calorie burn, changing the calendar color when you hit a 500-calorie goal. Challenge yourself and friends to maintain daily goals.
- iCloud Calendar Sync
- Apple Widget Support
- Apple Watch Complication Support
- Daily Calorie Tracking
- Goal Achievement Visualization
- Friend Comparisons
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Key Features: - Automatically sync your appointments from your iCloud Calendar to any Apple Widget, even rectangular Apple Watch Complications - Additionally, we access to your Health data to track your daily calories. Once you burn more than 500 calories, the current day on your calendar will change color to show you’ve hit the 500 calorie goal. - Challenge yourself to hit 500 active calories every day for a whole month. - See who can keep their month the greenest by comparing with friends and family. Become more mindful of how you progress through your months, days, and hours by downloading PicoCal for Apple Watch
Screenshots
Verdict
The clearest difference is in-app purchases: PicoCal at none against Master Notes's 2. Master Notes's advantage is update cadence (every 5 days vs every 5 months). On price, ads, device support and iOS requirement 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. Master Notes sells 2 in-app purchases, starting at $1.49 per month. PicoCal asks for nothing beyond the download.
Master Notes ships an update every 5 days, PicoCal every 5 months. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | Master Notes | PicoCal |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days — better | Every 5 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, Apple Watch |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 5 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jozsef Mahl | Bryan de Bourbon |
In-app purchases
Master Notes
- Monthly subscription7 Days trial$1.491 Month
- Annual subscription1 Month trial$10.491 Year
PicoCal
No in-app purchases









