# JSCalculator vs Time Left

The clearest difference is price: Time Left at Free against JSCalculator's $0.99. Time Left also leads on update cadence (every 6 days vs every 25 months) and ratings volume (237 vs 2). JSCalculator's advantage is in-app purchases (none vs 5) and rating (5.0 vs 4.6). On ads there is nothing between them.

Time Left is free to download; JSCalculator costs $0.99 up front. Time Left sells 5 in-app purchases, starting at $4.99 per 7 days. JSCalculator asks for nothing beyond the download.

JSCalculator holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Time Left has 237 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of JSCalculator's written reviews are positive against 73% of Time Left's.

JSCalculator ships an update every 25 months, Time Left every 6 days. The most recent releases landed on October 3, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | JSCalculator | Time Left |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/jscalculator/id443347724/reviews)** | [4.6 (237 ratings)](https://appshunter.io/ios/app/time-left-be-present/id1534791123/reviews) |
| Number of ratings | 2 | **237** |
| Positive reviews | **100.0% of reviews** | 73.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 6 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 42 MB |
| Requires iOS | **15** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Biaggio](https://appshunter.io/developer/304972232) | [Julien Lacroix](https://appshunter.io/developer/578463717) |

## What reviewers say

### JSCalculator

[App page](https://appshunter.io/ios/app/jscalculator/id443347724)

This advanced calculator evaluates expressions as you type, eliminating the need for an equals key. It supports complex formulas, variables, and predefined constants, making it ideal for scientific and engineering tasks.

**Highlights:** Instant evaluation as you type, Formula entry with variables, Multi-step formulas, History of entered formulas, Predefined constants of nature, Copy and paste functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### Time Left

[App page](https://appshunter.io/ios/app/time-left-be-present/id1534791123)

This app helps you visualize the finite nature of your time, displaying the remaining days, months, and years. It encourages a more present and creative life by emphasizing the preciousness of each moment. Your data remains private, with no notifications or ads.

**Highlights:** Displays remaining days, months, and years, Emphasizes the preciousness of time, Encourages a happy and creative life, No notifications, ads, or sign-up, Private data storage, Unlockable widgets and customization (Pro)

**Features:** Vision Pro support

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Per week | $4.99 | per 7 days |
| Annual | $17.99 | per year |
| Per year | $17.99 | per year |
| Lifetime | $19.99 | one-time |
| One time | $24.99 | one-time |

**What reviewers like**

- 💡 Innovative memento mori concept
- 🎨 Beautiful and elegant design
- 👍 Simple and intuitive user interface
- 🆓 Free app with no ads or data collection
- 📱 Effective widget implementation

**What reviewers complain about**

- 💰 Expensive premium subscription ($260/year)
- 🐛 Widget functionality broken after updates
- 🐛 Display rendering issues (upside-down text, missing elements)
- 🐛 App crashes and fails to load on some devices
- 🐛 Slow performance and laggy navigation

**Reported bugs**

- Widget not updating daily after recent updates
- Display text rendering issues (font size problems)
- App fails to load past welcome screen on some devices
- Widget incompatibility with iOS 18.4
- Years and months numbers displaying upside down

**Requested features**

- Lock screen widget support
- Apple Watch widget integration
- Multiple time granularity options (weeks, days, hours)
- Life expectancy limit increased beyond 90 years
- Customizable row lengths in calendar view


## Frequently asked questions

### Is JSCalculator free?

JSCalculator costs $0.99, with no in-app purchases.

### Is Time Left free?

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

### Which has better reviews, JSCalculator or Time Left?

JSCalculator is rated higher. JSCalculator averages 5.0 out of 5 from 2 ratings, while Time Left averages 4.6 from 237 ratings.

### Do JSCalculator or Time Left have ads?

Neither JSCalculator nor Time Left shows ads.

### Which is updated more often, JSCalculator or Time Left?

JSCalculator ships an update every 25 months, and Time Left every 6 days. Most recently, JSCalculator was updated on October 3, 2026 and Time Left on October 20, 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.*