Notes vs KatKalk
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Notes
This app combines a notepad, to-do list, and memo functionality into a single, intuitive interface. Easily create notes from text, voice, or images, and organize them with reminders and sorting options. Secure your data and transfer it to new devices.
- 3-in-1 notepad, to-do list, and memos
- Create notes from photos, images, and voice
- Set notifications and reminders
- Sort notes by urgency, category, due date, color
- Secure notes with a security code
- Data transfer to new devices
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Notes: notepad and lists is a convenient app that helps you make notes and keep lists. Why should you choose Notes: notepad and lists? - 3 in 1 Replace your to-do list, notepad and memos with this simple, all-in-one app. - Easy to use Notes: notepad and lists is an extremely simple and intuitive app. No instructions or tutorial necessary. - Fast Create a note or a list in literally seconds - the perfect way to jot down important information. A notepad, diary and to-do list that suits your face-paced lifestyle. - Multiple formats Create notes from photos, images, and voice messages, and make your to-do list or shopping list. Use it on the go, or even behind the wheel - all you have to do is record your message or take a photo. - Editing You can edit your notes, or add comments, attachments, details and notifications at any time. - Planning Notes: notepad and lists also works as a to-do list: you can set notifications and reminders (one off or repeated) for each note, and the easy-to-use calendar system helps you keep track of deadlines. - Sorting You can sort your notes by urgency, category, due date, and color, so searching through your content is quick and easy. - Security Notes: notepad and lists lets you protect your personal data with a short security-code, meaning only you can access your notes and lists. - Transfer your info If you get a new device, you won't lose your information - registered users can restore their data.
KatKalk
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KatKalk is a configurable position calculator designed for the fast entry of many individual values. Unlike a conventional calculator, KatKalk keeps every entered position visible. This makes calculations easy to follow, verify and correct—even during fast-paced work. KEY FEATURES • Add, subtract, multiply, divide and calculate percentages • Keep every entered position clearly visible • Add short notes to individual positions • Save and reopen multiple sessions locally • Copy or remove the latest position • Choose from ready-made calculator profiles • Customize the keypad, screen layout and visible controls • Export sessions as readable HTML reports • Print reports directly from a compatible browser • Export and import KatKalk session files • Use the core calculator without an internet connection • Follow shared sessions in read-only viewer mode BUILT FOR PRACTICAL WORK KatKalk is especially useful when many prices, products or other individual values must be entered quickly while the complete calculation remains traceable. Every accepted value becomes a separate position. You can review the complete list, identify corrections and keep short product names or other information next to the corresponding value. FLEXIBLE CALCULATOR PROFILES Choose a simple profile for everyday calculations or adapt KatKalk to your own workflow. Depending on the selected profile, you can customize: • The calculator keypad and its arrangement • Visible buttons and quick-access actions • Notes and audio controls • Position numbers and counters • The total and cumulative totals • Font sizes and screen areas • Calculation and percentage rules Profiles for simple calculations, notes, recordings, advanced controls and classic calculator operation are included. SESSIONS AND REPORTS Save different calculations as separate sessions and reopen them later. KatKalk keeps the individual positions and notes together with the session. Create a readable HTML report for browsers, smartphones and printing. You can also export a KatKalk session file and import it again to continue working with the calculation. LOCAL BY DEFAULT Calculations, notes and saved sessions remain on your device. KatKalk’s core calculator works fully offline. Optional online functions are clearly separated from local calculation. Shared sessions can be followed in read-only viewer mode without allowing viewers to alter the master calculation. KatKalk is not intended to replace accounting, invoicing or financial advisory software. It is a practical tool for fast, transparent and configurable position calculations.
Screenshots
Verdict
The clearest difference is in-app purchases: KatKalk at none against Notes's 1. KatKalk also leads on ads (none vs shown) and update cadence (every 9 days vs monthly). Notes's advantage is iOS requirement (13.0 vs 15.0). On price and device support 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. Notes sells 1 one-off in-app purchase. KatKalk asks for nothing beyond the download.
Notes ships an update monthly, KatKalk every 9 days. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.
| Parameter | Notes | KatKalk |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (684 ratings) — better | — |
| Positive reviews | 78.5% of reviews | — |
| Number of ratings | 684 — better | — |
| Update frequency | Monthly | Every 9 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 109 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Orange Dog | Marcin Kilinski |
Bugs and requests
Notes
Reported bugs
1 issue- Unexpected ads appearing after recent updates for paid subscribers
Requested features
3 requests- More engaging task motivation features
- Clearer documentation on note persistence
- Improved customer support interface
KatKalk
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Notes
- Disable ads$9.99
KatKalk
No in-app purchases









