# CSI Spaces vs inFin：AI Voice Notes

The clearest difference is in-app purchases: CSI Spaces at none against inFin：AI Voice Notes's 3. inFin：AI Voice Notes's advantage is update cadence (every 4 days vs every 8 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. inFin：AI Voice Notes sells 3 in-app purchases, starting at $2.99 per month. CSI Spaces asks for nothing beyond the download.

CSI Spaces ships an update every 8 months, inFin：AI Voice Notes every 4 days. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | CSI Spaces | inFin：AI Voice Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (25 ratings)](https://appshunter.io/ios/app/infinai-voice-notes/id6504136355/reviews)** |
| Number of ratings | — | **25** |
| Positive reviews | — | 72.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 28 MB | 401 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Centre for Social Innovation](https://appshunter.io/developer/1526945793) | [Ningbo Shenglang Digital Technology Co., Ltd](https://appshunter.io/developer/1848290192) |

## What reviewers say

### CSI Spaces

[App page](https://appshunter.io/ios/app/csi-spaces/id1528930586)

**Features:** macOS Compatibility

**In-app purchases:** none


### inFin：AI Voice Notes

[App page](https://appshunter.io/ios/app/infinai-voice-notes/id6504136355)

This app offers AI-powered voice note-taking with real-time transcription and translation. It efficiently organizes information from various sources, provides smart summaries, and ensures data security through local storage.

**Highlights:** Real-time AI transcription (Chinese/English), One-click web clipping with AI content extraction, AI-generated summaries and to-do lists, Natural language deep search for notes, Offline editing and translation, Local data storage with encryption, Multilingual copy polishing and writing assistance

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| inFin Pro Monthly Plan | $2.99 | per month |
| inFin Pro Annual Plan | $29.99 | per year |
| inFin Max Annual Plan | $99.99 | per year |


## Frequently asked questions

### Is CSI Spaces free?

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

### Is inFin：AI Voice Notes free?

inFin：AI Voice Notes is free to download, with in-app purchases available.

### Do CSI Spaces or inFin：AI Voice Notes have ads?

Neither CSI Spaces nor inFin：AI Voice Notes shows ads.

### Which is updated more often, CSI Spaces or inFin：AI Voice Notes?

CSI Spaces ships an update every 8 months, and inFin：AI Voice Notes every 4 days. Most recently, CSI Spaces was updated on October 27, 2026 and inFin：AI Voice Notes on October 30, 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.*