# zistemo vs Variocube Service Lock

The clearest difference is update cadence: zistemo at monthly against Variocube Service Lock's every 7 months. Variocube Service Lock'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, Variocube Service Lock every 7 months. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | zistemo | Variocube Service Lock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 7 months |
| Monetization | Free | — |
| Size | 45 MB | 10 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [DAYquiri GmbH](https://appshunter.io/developer/579268966) | [VARIOCUBE GmbH](https://appshunter.io/developer/1591590682) |

## What reviewers say

### zistemo

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

Effortlessly track your time and expenses on the go. This app helps freelancers and businesses stay organized, boost productivity, and manage projects with features like receipt scanning and automated reporting. Improve personal time management and business effectiveness.

**Highlights:** Instant time tracking, Expense tracking with receipt scanning, Automated reporting, Project and task management, Invoice generation, Staff progress monitoring

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

**In-app purchases:** none


### Variocube Service Lock

[App page](https://appshunter.io/ios/app/variocube-service-lock/id1591603106)

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

**In-app purchases:** none


## Frequently asked questions

### Is zistemo free?

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

### Is Variocube Service Lock free?

Variocube Service Lock is free to download, with no in-app purchases.

### Do zistemo or Variocube Service Lock have ads?

Neither zistemo nor Variocube Service Lock shows ads.

### Which is updated more often, zistemo or Variocube Service Lock?

zistemo ships an update monthly, and Variocube Service Lock every 7 months. Most recently, zistemo was updated on November 1, 2026 and Variocube Service Lock 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.*