# Twin Calculator vs Preminder

The clearest difference is rating: Preminder at 5.0 against Twin Calculator's 1.0. Twin Calculator's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 18.0). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Preminder holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

## The numbers

| Metric | Twin Calculator | Preminder |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/twin-calculator-multi-function-calculator/id1021097277/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/preminder-reminder-offset/id6479565491/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | Free |
| Size | 4 MB | 0 MB |
| Requires iOS | **8.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [R.E.O. Factory](https://appshunter.io/developer/435344117) | [Dejal Systems, LLC](https://appshunter.io/developer/299135460) |

## What reviewers say

### Twin Calculator

[App page](https://appshunter.io/ios/app/twin-calculator-multi-function-calculator/id1021097277)

Perform two calculations simultaneously with this multi-function calculator. It allows for formula display and registration of constants, making complex calculations and tax calculations easier.

**Highlights:** Two calculators for simultaneous calculations, Formula display for clear input, Constant registration for quick access, Supports bracket expressions, Easy tax calculation

**Features:** macOS Compatibility

**In-app purchases:** none


### Preminder

[App page](https://appshunter.io/ios/app/preminder-reminder-offset/id6479565491)

Easily set reminders for future events by specifying a date and a custom time interval before it. The app handles the calculations, allowing you to add reminders to any of your lists with optional notes or times.

**Highlights:** Set reminders before specific dates, Customizable time intervals, Add reminders to any list, Include or exclude notes and time, Handles date calculations

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Twin Calculator free?

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

### Is Preminder free?

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

### Which has better reviews, Twin Calculator or Preminder?

Preminder is rated higher. Twin Calculator averages 1.0 out of 5 from 1 ratings, while Preminder averages 5.0 from 1 ratings.

### Do Twin Calculator or Preminder have ads?

Neither Twin Calculator nor Preminder shows ads.

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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.*