# ZoneClock vs TriTab Calc

The clearest difference is price: ZoneClock at Free against TriTab Calc's $2.99. ZoneClock also leads on update cadence (every 5 days vs every 2 weeks). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

ZoneClock is free to download; TriTab Calc costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ZoneClock ships an update every 5 days, TriTab Calc every 2 weeks. The most recent releases landed on September 14, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | ZoneClock | TriTab Calc |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | — | **[3.7 (3 ratings)](https://appshunter.io/ios/app/tritab-calc-multi-calculator/id6785739399/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | — | Paid |
| Size | 3 MB | 1 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Andrei Lupanin](https://appshunter.io/developer/1882669105) | [HIROKI MURAI](https://appshunter.io/developer/6785739401) |

## What reviewers say

### ZoneClock

[App page](https://appshunter.io/ios/app/zoneclock/id6760105465)

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

**In-app purchases:** none


### TriTab Calc

[App page](https://appshunter.io/ios/app/tritab-calc-multi-calculator/id6785739399)

Perform multiple calculations simultaneously with three independent tabs. Easily switch between calculations, track history, and copy/paste results. Ideal for managing estimates, invoices, and everyday math tasks without ads or account creation.

**Highlights:** Three independent calculator tabs, Calculation history, Copy and paste functionality, Dedicated tax calculation, Basic arithmetic and advanced functions, Large, clear display, Ad-free and no account required

**In-app purchases:** none


## Frequently asked questions

### Is ZoneClock free?

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

### Is TriTab Calc free?

TriTab Calc costs $2.99, with no in-app purchases.

### Do ZoneClock or TriTab Calc have ads?

Neither ZoneClock nor TriTab Calc shows ads.

### Which is updated more often, ZoneClock or TriTab Calc?

ZoneClock ships an update every 5 days, and TriTab Calc every 2 weeks. Most recently, ZoneClock was updated on September 14, 2026 and TriTab Calc on September 18, 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.*