# TeSlate vs Calculator

The clearest difference is rating: Calculator at 5.0 against TeSlate's 4.1. Calculator also leads on review sentiment (100% vs 90%) and iOS requirement (12.0 vs 16.0). TeSlate's advantage is in-app purchases (none vs 2) and update cadence (weekly vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Calculator sells 2 one-off in-app purchases. TeSlate asks for nothing beyond the download.

Calculator holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: TeSlate has 26 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 90% of TeSlate's written reviews are positive against 100% of Calculator's.

TeSlate ships an update weekly, Calculator every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | TeSlate | Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (26 ratings)](https://appshunter.io/ios/app/teslate/id1532406445/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/calculator-currency-unit/id1583572133/reviews)** |
| Number of ratings | **26** | 4 |
| Positive reviews | 90.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 3 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 7 MB | 19 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Michael Teuscher](https://appshunter.io/developer/1466419625) | [hua-shan cheng](https://appshunter.io/developer/1019388170) |

## What reviewers say

### TeSlate

[App page](https://appshunter.io/ios/app/teslate/id1532406445)

This app provides a home screen widget for iOS 17 that displays key information from your Tesla vehicle. It allows you to select which car to showcase directly on your device's display.

**Highlights:** iOS 17 home screen widget, Connects to Tesla vehicles, Displays vehicle information, Selectable car display

**Features:** macOS Compatibility

**In-app purchases:** none


### Calculator

[App page](https://appshunter.io/ios/app/calculator-currency-unit/id1583572133)

This versatile tool combines a scientific calculator with currency and unit conversion capabilities. It offers a history manager, full editing options, and an intuitive interface for school, work, and daily tasks. Supports offline currency conversion.

**Highlights:** Scientific calculator functions, Currency converter with 37 currencies, Unit converter with 181 units, History manager for calculations, Offline currency conversion, Full editing options (undo/redo)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock iPad Landscape | $0.99 | one-time |
| Unlock History | $0.99 | one-time |


## Frequently asked questions

### Is TeSlate free?

TeSlate is free to download, with no in-app purchases.

### Is Calculator free?

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

### Which has better reviews, TeSlate or Calculator?

Calculator is rated higher. TeSlate averages 4.1 out of 5 from 26 ratings, while Calculator averages 5.0 from 4 ratings.

### Do TeSlate or Calculator have ads?

Neither TeSlate nor Calculator shows ads.

### Which is updated more often, TeSlate or Calculator?

TeSlate ships an update weekly, and Calculator every 3 weeks. Most recently, TeSlate was updated on November 3, 2026 and Calculator on November 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.*