# Misterine App vs ieRcalc

The clearest difference is update cadence: ieRcalc at every 4 days against Misterine App's every 2 months. Misterine App's advantage is iOS requirement (13.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

Misterine App ships an update every 2 months, ieRcalc every 4 days. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Misterine App | ieRcalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 236 MB | 37 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Misterine s.r.o.](https://appshunter.io/developer/1437793826) | [REI KAMIKURA](https://appshunter.io/developer/1896764006) |

## What reviewers say

### Misterine App

[App page](https://appshunter.io/ios/app/misterine-app/id1538748622)

**In-app purchases:** none


### ieRcalc

[App page](https://appshunter.io/ios/app/iercalc/id6771453728)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Misterine App free?

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

### Is ieRcalc free?

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

### Do Misterine App or ieRcalc have ads?

Neither Misterine App nor ieRcalc shows ads.

### Which is updated more often, Misterine App or ieRcalc?

Misterine App ships an update every 2 months, and ieRcalc every 4 days. Most recently, Misterine App was updated on October 27, 2026 and ieRcalc on October 31, 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.*