# Mental Arithmetic Helper vs Swiss Post

The clearest difference is iOS requirement: Mental Arithmetic Helper at 15.8.3 against Swiss Post's 17.0. On price, update cadence, 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.

Mental Arithmetic Helper ships an update fortnightly, Swiss Post every 3 weeks. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Mental Arithmetic Helper | Swiss Post |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (6 ratings)](https://appshunter.io/ios/app/swiss-post-preview/id6738919008/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | — | Ad-supported |
| Size | 37 MB | 621 MB |
| Requires iOS | **15.8.3** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Die Schweizerische Post](https://appshunter.io/developer/378676703) |

## What reviewers say

### Mental Arithmetic Helper

[App page](https://appshunter.io/ios/app/mental-arithmetic-helper/id6502036493)

**Features:** macOS Compatibility

**In-app purchases:** none


### Swiss Post

[App page](https://appshunter.io/ios/app/swiss-post-preview/id6738919008)

Test upcoming postal service features and provide feedback to help shape future app development. Manage deliveries, handle digital mail, track public transport, and digitally frank mail with this preview application.

**Highlights:** Preview new postal functions, Manage deliveries with push notifications, Handle digital mail and invoices, Track PostBus live locations, Find branches and services, Digitally frank letters and parcels, Send/collect parcels at 24/7 terminals

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

**In-app purchases:** none


## Frequently asked questions

### Is Mental Arithmetic Helper free?

Mental Arithmetic Helper is free to download, with no in-app purchases.

### Is Swiss Post free?

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

### Do Mental Arithmetic Helper or Swiss Post have ads?

Both Mental Arithmetic Helper and Swiss Post show ads.

### Which is updated more often, Mental Arithmetic Helper or Swiss Post?

Mental Arithmetic Helper ships an update fortnightly, and Swiss Post every 3 weeks. Most recently, Mental Arithmetic Helper was updated on October 11, 2026 and Swiss Post on October 9, 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.*