# addy.io extension vs Synopsule

The clearest difference is price: addy.io extension at Free against Synopsule's $1.99. addy.io extension also leads on in-app purchases (none vs 2) and iOS requirement (15.0 vs 17.0). Synopsule's advantage is update cadence (every 5 days vs every 4 weeks). On ads and device support there is nothing between them.

addy.io extension is free to download; Synopsule costs $1.99 up front. Synopsule sells 2 in-app purchases, starting at $4.99 per month. addy.io extension asks for nothing beyond the download.

addy.io extension ships an update every 4 weeks, Synopsule every 5 days. The most recent releases landed on September 20, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | addy.io extension | Synopsule |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/synopsule/id6773112941/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 5 days** |
| Monetization | — | Paid |
| Size | 7 MB | 99 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, Mac, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [addy.io](https://appshunter.io/developer/1758544549) | [Sunny Nagra](https://appshunter.io/developer/914709960) |

## What reviewers say

### addy.io extension

[App page](https://appshunter.io/ios/app/addyio-extension/id6670220050)

**Features:** Safari Extension, Vision Pro support

**In-app purchases:** none


### Synopsule

[App page](https://appshunter.io/ios/app/synopsule/id6773112941)

This app transforms your iPhone and Apple Watch into a private transcription studio. It records conversations, provides live transcripts, and identifies speakers locally on your device. Optional AI summaries can be generated using your own keys or through a subscription.

**Highlights:** On-device recording and transcription, Speaker identification and labeling, Local AI summarization, Time-anchored notes and flags, Full-text search, Multiple export formats, Playback and editing tools

**Features:** Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Synopsule Pro Monthly | $4.99 | per month |
| Synopsule Pro Yearly | $39.99 | per year |


## Frequently asked questions

### Is addy.io extension free?

addy.io extension is free to download, with no in-app purchases.

### Is Synopsule free?

Synopsule costs $1.99, and also offers in-app purchases.

### Do addy.io extension or Synopsule have ads?

Neither addy.io extension nor Synopsule shows ads.

### Which is updated more often, addy.io extension or Synopsule?

addy.io extension ships an update every 4 weeks, and Synopsule every 5 days. Most recently, addy.io extension was updated on September 20, 2026 and Synopsule on September 28, 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.*