# SignalScale

> SignalScale (iPhone/iPad app by Ernst Birox.)

- Source: https://appshunter.io/ios/app/signalscale/id6825007013 (this page in markdown: same URL + `.md`)
- Developer: [Ernst Birox](https://appshunter.io/developer/6785037745)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 1 MB
- Languages: English
- Released: 2026-10-26
- Data updated: 2026-10-30

## What is SignalScale?

SignalScale turns analog signals into measurement values and back. Set your signal and measurement ranges, enter a value, and see the result immediately.

SIGNAL PRESETS
4–20 mA, 0–20 mA, 0–10 V, 2–10 V, 0–5 V, 1–5 V and −10–10 V are built in. Use Custom range for other endpoints and units.

CONVERT IN BOTH DIRECTIONS
Convert a measured signal into pressure, temperature, speed or another quantity. Switch direction to calculate the signal corresponding to a target measurement. Increasing and decreasing ranges are supported. Values outside the configured range are extrapolated and clearly marked.

SAVE ANALOG CHANNELS
Keep multiple analog input (AI) and analog output (AO) configurations with individual names, ranges and units. Load a saved channel, update it or save a new copy.

VISUALIZE AND SHARE
View the linear scaling curve and reference values at 0%, 25%, 50%, 75% and 100%. Export an English-language chart as a vector PDF or high-resolution PNG through the iOS share sheet.

OFFLINE CALCULATIONS
Calculations and saved channels work offline. No account, ads or analytics. Calculator settings and channels are stored locally on your device.

Example: 4–20 mA mapped to 0–10 bar gives 5 bar at 12 mA.

SignalScale performs linear calculations using values you enter. It does not connect to instruments, measure electrical signals, diagnose sensor faults or perform square-root extraction.

## Is SignalScale safe?

Not enough ratings yet to assess SignalScale.

## Is SignalScale legit?

SignalScale has limited verification signals. The AppsHunter Legitimacy Score for SignalScale is 48 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-27

No release notes.

## More apps by Ernst Birox

- [DEC/BIN/HEX Calculator](https://appshunter.io/ios/app/decbinhex-calculator/id6785037743)

All apps by Ernst Birox: https://appshunter.io/developer/6785037745

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-30.*