# Ready2Gauge vs ThetaCalc

The clearest difference is rating: ThetaCalc at 4.3 against Ready2Gauge's 1.0. ThetaCalc also leads on ratings volume (4 vs 1). Ready2Gauge's advantage is update cadence (every 5 weeks vs every 3 months) and iOS requirement (12.0 vs 17.6). 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.

ThetaCalc holds the better App Store score, 4.3 against 1.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively.

Ready2Gauge ships an update every 5 weeks, ThetaCalc every 3 months. The most recent releases landed on October 22, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Ready2Gauge | ThetaCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ready2gauge/id1433692960/reviews) | **[4.3 (4 ratings)](https://appshunter.io/ios/app/thetacalc/id1521614636/reviews)** |
| Number of ratings | 1 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 16 MB | 1 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Marposs S.p.A.](https://appshunter.io/developer/1043109642) | [Felix Stehli](https://appshunter.io/developer/1521614638) |

## What reviewers say

### Ready2Gauge

[App page](https://appshunter.io/ios/app/ready2gauge/id1433692960)

This application enables users to program and store data from I-Wave 2 and Wave2 Marposs meters. It seamlessly integrates these devices with industrial environments, offering an intuitive interface for immediate use.

**Highlights:** Program I-Wave 2 meters, Save Wave2 Marposs meter data, Integrate with industrial reality, Intuitive user interface, Store device data

**Features:** macOS Compatibility

**In-app purchases:** none


### ThetaCalc

[App page](https://appshunter.io/ios/app/thetacalc/id1521614636)

This utility app provides a Reverse Polish Notation (RPN) calculator. Users can extend its functionality by programming custom functions and equations using JavaScript.

**Highlights:** Reverse Polish Notation (RPN) calculator, User-programmable functions, JavaScript equation support, Extensible functionality

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ready2Gauge free?

Ready2Gauge is free to download, with no in-app purchases.

### Is ThetaCalc free?

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

### Which has better reviews, Ready2Gauge or ThetaCalc?

ThetaCalc is rated higher. Ready2Gauge averages 1.0 out of 5 from 1 ratings, while ThetaCalc averages 4.3 from 4 ratings.

### Do Ready2Gauge or ThetaCalc have ads?

Neither Ready2Gauge nor ThetaCalc shows ads.

### Which is updated more often, Ready2Gauge or ThetaCalc?

Ready2Gauge ships an update every 5 weeks, and ThetaCalc every 3 months. Most recently, Ready2Gauge was updated on October 22, 2026 and ThetaCalc on October 29, 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.*