# SoundScope vs Seismometer ∞

The clearest difference is ads: SoundScope at none against Seismometer ∞'s shown. Seismometer ∞'s advantage is update cadence (every 2 weeks vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

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

SoundScope ships an update every 3 months, Seismometer ∞ every 2 weeks. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | SoundScope | Seismometer ∞ |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Size | 5 MB | 16 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ROBERT PRICE](https://appshunter.io/developer/1855031255) | [辰巳家有限公司](https://appshunter.io/developer/1781943256) |

## What reviewers say

### SoundScope

[App page](https://appshunter.io/ios/app/soundscope-audio-toolkit/id6755621768)

**Features:** macOS Compatibility

**In-app purchases:** none


### Seismometer ∞

[App page](https://appshunter.io/ios/app/seismometer/id6761700650)

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

**In-app purchases:** none


## Frequently asked questions

### Is SoundScope free?

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

### Is Seismometer ∞ free?

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

### Do SoundScope or Seismometer ∞ have ads?

Seismometer ∞ shows ads; SoundScope does not.

### Which is updated more often, SoundScope or Seismometer ∞?

SoundScope ships an update every 3 months, and Seismometer ∞ every 2 weeks. Most recently, SoundScope was updated on September 18, 2026 and Seismometer ∞ on September 12, 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.*