# zistemo vs CNG

The clearest difference is update cadence: zistemo at monthly against CNG's every 38 months. CNG's advantage is iOS requirement (13.0 vs 15.0). 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.

zistemo ships an update monthly, CNG every 38 months. The most recent releases landed on November 6, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | zistemo | CNG |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 38 months |
| Monetization | Free | — |
| Size | 45 MB | 34 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DAYquiri GmbH](https://appshunter.io/developer/579268966) | [Hectronic GmbH](https://appshunter.io/developer/546656372) |

## What reviewers say

### zistemo

[App page](https://appshunter.io/ios/app/zistemo-time-tracking/id1058504772)

This app offers instant time and expense tracking for businesses and freelancers. It helps users stay organized, boost productivity, and manage projects, tasks, and client invoices efficiently. Users can also track expenses by snapping photos of receipts and assigning tax categories.

**Highlights:** Instant time tracking, Expense tracking with receipt photos, Project and task logging, Invoice generation, Automated timesheet creation, Customized business reports, Staff progress monitoring

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

**In-app purchases:** none


### CNG

[App page](https://appshunter.io/ios/app/cng-mobility/id1473420328)

**In-app purchases:** none


## Frequently asked questions

### Is zistemo free?

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

### Is CNG free?

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

### Do zistemo or CNG have ads?

Neither zistemo nor CNG shows ads.

### Which is updated more often, zistemo or CNG?

zistemo ships an update monthly, and CNG every 38 months. Most recently, zistemo was updated on November 6, 2026 and CNG 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.*