# SigmaNote vs UpServe

The clearest difference is update cadence: UpServe at daily against SigmaNote's weekly. SigmaNote's advantage is iOS requirement (18.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. SigmaNote sells 4 in-app purchases, starting at $8.99 per month and UpServe sells 7 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.

SigmaNote ships an update weekly, UpServe daily. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SigmaNote | UpServe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sigmanote/id6744374542/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Monetization | Freemium | — |
| Size | 90 MB | 45 MB |
| Requires iOS | **18.0** | 26.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [SignifyID LLC](https://appshunter.io/developer/1793292360) | [StellaDev Inc.](https://appshunter.io/developer/1804747935) |

## What reviewers say

### SigmaNote

[App page](https://appshunter.io/ios/app/sigmanote/id6744374542)

This app acts as an AI-powered knowledge hub, allowing users to capture, manage, learn from, and create knowledge across various formats. It uses AI agents to organize content, answer questions, and facilitate voice-driven writing and content creation.

**Highlights:** Capture knowledge from diverse sources, AI agents for organization and retrieval, Learn through conversation and listening, Voice-driven AI writing and content creation, Unified knowledge lifecycle management, Cross-format knowledge integration

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SigmaNote Premium Monthly | $8.99 | per month |
| SigmaNote Premium Plus Monthly | $12.99 | per month |
| SigmaNote Premium Yearly | $80.99 | per year |
| SigmaNote Premium Plus Yearly | $116.99 | per year |


### UpServe

[App page](https://appshunter.io/ios/app/upserve/id6760365638)

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| UpServe Starter (Monthly) | $19.99 | per month |
| UpServe Standard Monthly | $49.99 | per month |
| UpServe Pro (Monthly) | $144.99 | per month |
| UpServe Starter (Yearly) | $199.99 | per year |
| UpServe Pro (Yearly) | $499.99 | per year |
| UpServe 5 Credits | $29.99 | one-time |
| UpServe 10 Credits | $59.99 | one-time |


## Frequently asked questions

### Is SigmaNote free?

SigmaNote is free to download, with in-app purchases available.

### Is UpServe free?

UpServe is free to download, with in-app purchases available.

### Do SigmaNote or UpServe have ads?

Neither SigmaNote nor UpServe shows ads.

### Which is updated more often, SigmaNote or UpServe?

SigmaNote ships an update weekly, and UpServe daily. Most recently, SigmaNote was updated on October 24, 2026 and UpServe on October 25, 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.*