# PCalc Lite vs Time Lines

The clearest difference is update cadence: Time Lines at weekly against PCalc Lite's every 2 months. Time Lines also leads on iOS requirement (13.0 vs 15.0). PCalc Lite's advantage is ratings volume (214 vs 8). On price, rating, review sentiment and ads there is nothing between them.

Both are free to download. PCalc Lite sells 11 one-off in-app purchases and Time Lines sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.4 for PCalc Lite against 4.5 for Time Lines. That said, the two scores are not equally well evidenced: PCalc Lite has 214 ratings behind it against 8, so its average is the more settled of the two. Written reviews are what separate them: 83% of PCalc Lite's written reviews are positive against 80% of Time Lines's.

PCalc Lite ships an update every 2 months, Time Lines weekly. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | PCalc Lite | Time Lines |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (214 ratings)](https://appshunter.io/ios/app/pcalc-lite/id300311831/reviews) | **[4.5 (8 ratings)](https://appshunter.io/ios/app/time-lines-world-clock/id1506203873/reviews)** |
| Number of ratings | **214** | 8 |
| Positive reviews | **82.6% of reviews** | 80.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 76 MB | 4 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod, Apple Watch | **iPhone, iPad, iPod, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [TLA Systems Ltd.](https://appshunter.io/developer/284666225) | [Mathieu Dutour](https://appshunter.io/developer/948026273) |

## What reviewers say

### PCalc Lite

[App page](https://appshunter.io/ios/app/pcalc-lite/id300311831)

This free scientific calculator offers essential features like RPN mode, unit conversions, and multiple undo/redo. It provides a taste of a more powerful version, with optional in-app purchases for expanded functionality.

**Highlights:** Optional RPN mode, Multiple undo and redo, Unit conversions and constants, Two stylish themes, Apple Watch app

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Theme Pack | $0.99 | one-time |
| Power User Pack | $0.99 | one-time |
| Multiple Line Pack | $0.99 | one-time |
| Conversion Pack | $0.99 | one-time |
| Small Tip | $0.99 | one-time |
| Medium Tip | $1.99 | one-time |
| Programmer Pack | $2.99 | one-time |
| Engineer Pack | $2.99 | one-time |
| Large Tip | $4.99 | one-time |
| Complete Pack | $9.99 | one-time |
| Enormous Tip | $9.99 | one-time |

**What reviewers like**

- 🚀 Fast and responsive
- 👍 Clean and intuitive interface
- 💡 Customizable themes and settings
- 🚀 Efficient performance
- 👍 Useful conversion tools

**What reviewers complain about**

- 🐛 Occasional lags and crashes
- 🔒 Lack of dark mode support
- 🔒 Inconsistent icon appearance after upgrades
- 🔒 Limitations in RPN mode on Apple Watch
- 🔒 Lack of financial calculator functions

**Reported bugs**

- Calculations sometimes produce unexpected results
- Upside-down text censorship feature is problematic
- Purchased features not always accessible on Apple Watch

**Requested features**

- Add option to display thousands separators
- Implement a history function to review past calculations
- Provide more customization options for the widget
- Add support for sexagesimal angle input and conversion


### Time Lines

[App page](https://appshunter.io/ios/app/time-lines-world-clock/id1506203873)

Easily track the time in different locations around the world. See when friends, family, or colleagues are available with a clear, visual overview. Syncs across devices and prioritizes your privacy.

**Highlights:** Global time tracking, Sunrise and sunset alignment, iCloud sync across devices, Privacy-focused design, Innovative line overview

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Contacts | Free | one-time |


## Frequently asked questions

### Is PCalc Lite free?

PCalc Lite is free to download, with in-app purchases available.

### Is Time Lines free?

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

### Which has better reviews, PCalc Lite or Time Lines?

Time Lines is rated higher. PCalc Lite averages 4.4 out of 5 from 214 ratings, while Time Lines averages 4.5 from 8 ratings.

### Do PCalc Lite or Time Lines have ads?

Neither PCalc Lite nor Time Lines shows ads.

### Which is updated more often, PCalc Lite or Time Lines?

PCalc Lite ships an update every 2 months, and Time Lines weekly. Most recently, PCalc Lite was updated on October 13, 2026 and Time Lines on October 3, 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.*