# 2 Field % Calc vs SamyClean robot

The clearest difference is review sentiment: 2 Field % Calc at 100% against SamyClean robot's 17%. SamyClean robot's advantage is update cadence (every 7 months vs every 30 months) and iOS requirement (9.0 vs 15.6). On price, ads, in-app purchases and monetization model there is nothing between them.

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

2 Field % Calc ships an update every 30 months, SamyClean robot every 7 months. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | 2 Field % Calc | SamyClean robot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/2-field-calc/id454060465/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | **100.0% of reviews** | 16.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 30 months | **Every 7 months** |
| Monetization | Free | Free |
| Size | 1 MB | 134 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toshihiro Nakane](https://appshunter.io/developer/6799290769) | [Yannis Amallah](https://appshunter.io/developer/1451306433) |

## What reviewers say

### 2 Field % Calc

[App page](https://appshunter.io/ios/app/2-field-calc/id454060465)

Calculate percentages between two numbers for various uses, including resizing images and determining magnification. Ideal for DTP and web designers needing quick calculations.

**Highlights:** Calculate percent between two numbers, Image resizing by percentage, Magnification calculation, Useful for DTP and web designers

**Features:** macOS Compatibility

**In-app purchases:** none


### SamyClean robot

[App page](https://appshunter.io/ios/app/samyclean-robot/id1516963052)

Control your robot vacuum cleaner remotely. Start, stop, schedule cleaning sessions, and send it back to its charging dock all from your smartphone.

**Highlights:** Remote robot control, Start/stop cleaning, Docking station return, Cleaning scheduling, Housework automation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 2 Field % Calc free?

2 Field % Calc is free to download, with no in-app purchases.

### Is SamyClean robot free?

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

### Do 2 Field % Calc or SamyClean robot have ads?

Neither 2 Field % Calc nor SamyClean robot shows ads.

### Which is updated more often, 2 Field % Calc or SamyClean robot?

2 Field % Calc ships an update every 30 months, and SamyClean robot every 7 months. Most recently, 2 Field % Calc was updated on October 22, 2026 and SamyClean robot on October 10, 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.*