# Time Calculator vs Simple Double Memo

The clearest difference is price: Time Calculator at Free against Simple Double Memo's $2.99. Time Calculator also leads on update cadence (every 2 weeks vs every 4 months) and device support (4 vs 2). Simple Double Memo's advantage is in-app purchases (none vs 6) and review sentiment (100% vs 79%). On ads there is nothing between them.

Time Calculator is free to download; Simple Double Memo costs $2.99 up front. Time Calculator sells 6 in-app purchases, starting at $2.99 per month. Simple Double Memo asks for nothing beyond the download.

Time Calculator ships an update every 2 weeks, Simple Double Memo every 4 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Time Calculator | Simple Double Memo |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (2.9K ratings)](https://appshunter.io/ios/app/time-calculator-work-hours/id565039079/reviews)** | — |
| Number of ratings | **2.9K** | — |
| Positive reviews | 78.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | **Freemium** | Paid |
| Size | 17 MB | 3 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Oval Software Oy](https://appshunter.io/developer/1438258178) | [Shun Isayama](https://appshunter.io/developer/1578976556) |

## What reviewers say

### Time Calculator

[App page](https://appshunter.io/ios/app/time-calculator-work-hours/id565039079)

This comprehensive toolkit helps manage time, dates, and schedules with various calculators. Track work hours, plan shifts, convert time formats, and calculate differences between dates. Ideal for professionals, freelancers, and everyday users needing precise time management.

**Highlights:** Work time tracking, Shift scheduling, Date difference calculation, Countdown timers, Time zone comparison, Age calculation, Time conversion

**Features:** Vision Pro support

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Time Calculator Pro Monthly | $2.99 | per month |
| Time Calculator Premium Monthl | $3.99 | per month |
| Time Calculator Premium | $14.99 | per year |
| Time Calculator Premium | $19.99 | per year |
| Time Calculator Premium | $19.99 | one-time |
| Unlock all features | $29.99 | one-time |

**What reviewers like**

- 🚀 Great Time calculator App
- 👍 Handy and easy to use
- 👍 Excellent
- 👍 Awesome
- 👍 Useful

**What reviewers complain about**

- 🐛 Editing
- 🐛 Not designed for use on more than one device?
- 💰 Too Expensive
- 💰 需要收费
- 💰 Not worth the money

**Reported bugs**

- Unable to upgrade
- Calculator does not show hours, minutes and seconds. Only hour and minutes
- Seconds don't work on a TIME calculator!
- The last update is bad, it doesn't work!
- The settings doesn't work after the last update

**Requested features**

- Overtime calculator
- Decimals for time calculator
- Ability to delete entries
- Ability to edit or pick the days on the calendar
- Ability to have the work time calculator on Mac


### Simple Double Memo

[App page](https://appshunter.io/ios/app/simple-double-memo/id6755015163)

This app allows you to write and manage two memos simultaneously on a single screen, either stacked vertically or side-by-side horizontally. It automatically adjusts the layout based on your device's orientation, making it ideal for comparisons or managing multiple ideas.

**Highlights:** Two-panel memo structure (vertical & horizontal), Automatic layout switching with screen rotation, Save memos with titles and update dates, Edit, delete, and reorder memos, Search function for titles and content, No ads or in-app purchases

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Time Calculator free?

Time Calculator is free to download, with in-app purchases available.

### Is Simple Double Memo free?

Simple Double Memo costs $2.99, with no in-app purchases.

### Do Time Calculator or Simple Double Memo have ads?

Neither Time Calculator nor Simple Double Memo shows ads.

### Which is updated more often, Time Calculator or Simple Double Memo?

Time Calculator ships an update every 2 weeks, and Simple Double Memo every 4 months. Most recently, Time Calculator was updated on October 24, 2026 and Simple Double Memo on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*