MemoDen vs Calendars
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MemoDen
This calculator allows you to store up to five numbers (M1-M5) and view their sum in real-time. It includes functions to clear input, remember numbers, and clear all memory. It also offers tax calculation options for prices including or excluding consumption tax.
- Store up to five numbers (M1-M5)
- Real-time sum display
- Clear input function
- Remember numbers to memory
- Clear all memory
- Calculate price with tax
- Calculate price without tax
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It is a simple calculator that memory can be seen. You can store five numbers of M1 ~ M5, the sum of them is displayed in the Sum at all times. - The role of each button - [C] : I will clear the number in the input. [M+] : I will remember the M1 numbers in the input. [MC] : I will clear the contents of the M1 ~ M5. [税込] : Price that includes consumption tax in Japan. [税抜] : Price minus the consumption tax in Japan.
Calendars
This app offers a streamlined approach to managing your schedule with a clean interface. Easily add events, view your daily agenda, and organize tasks with customizable calendar views. Advanced features include recurring events, task management, and goal setting to enhance productivity.
- Clean and user-friendly design
- Daily agenda view
- Weekly and monthly calendar views
- Recurring events
- Task management
- Goal setting
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Time.do boasts a clean and user-friendly design that makes scheduling a breeze. Whether you're adding events, or checking your daily agenda, everything is just a tap away. Choose from various calendar views – weekly, monthly – to see your schedule in the way that suits you best. Advanced Planning Tools: Plan ahead with advanced features like recurring events, task management, and goal setting. To do helps you stay organized and focused on what matters most.
Screenshots
Verdict
The clearest difference is update cadence: Calendars at every 4 days against MemoDen's every 14 months. MemoDen's advantage is iOS requirement (11.0 vs 17.0). On price, ads, in-app purchases and monetization model 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.
MemoDen ships an update every 14 months, Calendars every 4 days. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | MemoDen | Calendars |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 14 months | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | PC Garage | jietao wu |
Customer experience
MemoDen
Calendars
In-app purchases
MemoDen
No in-app purchases
Calendars
No in-app purchases
