# Cliff Journal vs SIGMA EXPERT

The clearest difference is price: SIGMA EXPERT at Free against Cliff Journal's $9.99. SIGMA EXPERT also leads on iOS requirement (14.0 vs 16.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

SIGMA EXPERT is free to download; Cliff Journal costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Cliff Journal | SIGMA EXPERT |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sigma-expert/id6743212920/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | — | Free |
| Size | 9 MB | 9 MB |
| Requires iOS | 16.6 | **14.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [林淮 刘](https://appshunter.io/developer/1702440560) | [SIGMA EXPERT](https://appshunter.io/developer/1801931761) |

## What reviewers say

### Cliff Journal

[App page](https://appshunter.io/ios/app/cliff-journal/id6461309137)

**Features:** Vision Pro support

**In-app purchases:** none


### SIGMA EXPERT

[App page](https://appshunter.io/ios/app/sigma-expert/id6743212920)

Manage your outsourced accounting tasks, communicate with staff, and view service payment invoices. This app provides clients with direct access to their accounting service management.

**Highlights:** Task control, Chat with employees, Service payment invoices, Client portal, Accounting management

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

**In-app purchases:** none


## Frequently asked questions

### Is Cliff Journal free?

Cliff Journal costs $9.99, with no in-app purchases.

### Is SIGMA EXPERT free?

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

### Do Cliff Journal or SIGMA EXPERT have ads?

Neither Cliff Journal nor SIGMA EXPERT shows ads.

### Which is updated more often, Cliff Journal or SIGMA EXPERT?

Cliff Journal ships an update every 2 weeks, and SIGMA EXPERT every 2 weeks. Most recently, Cliff Journal was updated on November 7, 2026 and SIGMA EXPERT on November 4, 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.*