# ScreenLits vs SignalProof

The clearest difference is update cadence: ScreenLits at daily against SignalProof's every 3 weeks. SignalProof's advantage is iOS requirement (17.0 vs 26.2). 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.

ScreenLits ships an update daily, SignalProof every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | ScreenLits | SignalProof |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/signalproof-tone-generator/id6785174973/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Daily** | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 0 MB | 7 MB |
| Requires iOS | 26.2 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Supachod Trakansirorut](https://appshunter.io/developer/1896688331) | [Borealbit Technology Limited](https://appshunter.io/developer/1808424081) |

## What reviewers say

### ScreenLits

[App page](https://appshunter.io/ios/app/screenlits/id6767622986)

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

**In-app purchases:** none


### SignalProof

[App page](https://appshunter.io/ios/app/signalproof-tone-generator/id6785174973)

Generate controlled audio signals for repeatable speaker, room, and sound meter checks. Save setups and results for easy comparison. Ideal for practical audio testing without ads or accounts.

**Highlights:** Sine tones and noise generation, Frequency sweeps, Left, right, or stereo output, dBFS level control, Save test sessions and presets, Export PDF reports, Local-first design, no account needed

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

**In-app purchases:** none


## Frequently asked questions

### Is ScreenLits free?

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

### Is SignalProof free?

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

### Do ScreenLits or SignalProof have ads?

Neither ScreenLits nor SignalProof shows ads.

### Which is updated more often, ScreenLits or SignalProof?

ScreenLits ships an update daily, and SignalProof every 3 weeks. Most recently, ScreenLits was updated on October 25, 2026 and SignalProof on October 24, 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.*