# FES.APP vs JUMO smartCALC

The clearest difference is iOS requirement: JUMO smartCALC at 14.0 against FES.APP's 26.0. 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.

FES.APP ships an update every 2 months, JUMO smartCALC monthly. Both last shipped on September 18, 2026.

## The numbers

| Metric | FES.APP | JUMO smartCALC |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 4 MB | 7 MB |
| Requires iOS | 26.0 | **14.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Scherer und Schifano GmbH](https://appshunter.io/developer/1683178809) | [JUMO GmbH & Co. KG](https://appshunter.io/developer/1023671932) |

## What reviewers say

### FES.APP

[App page](https://appshunter.io/ios/app/fesapp/id6447986188)

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

**In-app purchases:** none


### JUMO smartCALC

[App page](https://appshunter.io/ios/app/jumo-smartcalc/id6764057991)

**In-app purchases:** none


## Frequently asked questions

### Is FES.APP free?

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

### Is JUMO smartCALC free?

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

### Do FES.APP or JUMO smartCALC have ads?

Neither FES.APP nor JUMO smartCALC shows ads.

### Which is updated more often, FES.APP or JUMO smartCALC?

FES.APP ships an update every 2 months, and JUMO smartCALC monthly. Most recently, FES.APP was updated on September 18, 2026 and JUMO smartCALC on September 18, 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.*