# EteSync Notes vs OPSWAT SDP

The clearest difference is update cadence: EteSync Notes at weekly against OPSWAT SDP's every 6 months. EteSync Notes also leads on iOS requirement (10.0 vs 13.0). 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.

EteSync Notes ships an update weekly, OPSWAT SDP every 6 months. The most recent releases landed on June 4, 2026 and February 24, 2026 respectively.

## The numbers

| Metric | EteSync Notes | OPSWAT SDP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (2 ratings)](https://appshunter.io/ios/app/etesync-notes/id1533806351/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 months |
| Monetization | Free | — |
| Size | 21 MB | 62 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [EteSync Ltd](https://appshunter.io/developer/1489574284) | [OPSWAT, Inc.](https://appshunter.io/developer/987603817) |

## What reviewers say

### EteSync Notes

[App page](https://appshunter.io/ios/app/etesync-notes/id1533806351)

This app offers a secure and private note-taking experience. It features a change journal for data history, allowing you to restore or revert to past versions. An EteSync account is required, which can be hosted on a free, open-source server.

**Highlights:** Secure and privacy-respecting, Open-source client and server, Full data history and change journal, Easy to use with credentials, Data restoration and versioning

**Features:** macOS Compatibility

**In-app purchases:** none


### OPSWAT SDP

[App page](https://appshunter.io/ios/app/opswat-sdp/id1574377620)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EteSync Notes free?

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

### Is OPSWAT SDP free?

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

### Do EteSync Notes or OPSWAT SDP have ads?

Neither EteSync Notes nor OPSWAT SDP shows ads.

### Which is updated more often, EteSync Notes or OPSWAT SDP?

EteSync Notes ships an update weekly, and OPSWAT SDP every 6 months. Most recently, EteSync Notes was updated on June 4, 2026 and OPSWAT SDP on February 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.*