# Viro vs Zenith Time

The clearest difference is price: Viro at Free against Zenith Time's $0.99. Viro also leads on update cadence (every 8 days vs every 2 months). Zenith Time's advantage is in-app purchases (none vs 8) and review sentiment (100% vs 89%). On ads, device support and iOS requirement there is nothing between them.

Viro is free to download; Zenith Time costs $0.99 up front. Viro sells 8 in-app purchases, starting at $0.99 per month. Zenith Time asks for nothing beyond the download.

Viro ships an update every 8 days, Zenith Time every 2 months. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Viro | Zenith Time |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.9 (293 ratings)](https://appshunter.io/ios/app/viro-eco-friendly-ai/id6747270877/reviews)** | — |
| Number of ratings | **293** | — |
| Positive reviews | 89.1% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 8 days** | Every 2 months |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 75 MB | 30 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Viro Climate Action, Inc](https://appshunter.io/developer/1656085487) | [SHIRIN CHAWLA](https://appshunter.io/developer/1623472221) |

## What reviewers say

### Viro

[App page](https://appshunter.io/ios/app/viro-eco-friendly-ai/id6747270877)

Engage in unlimited AI conversations powered by clean energy. Access top AI models, create custom personas, and connect your favorite apps. Every chat supports climate initiatives.

**Highlights:** Unlimited AI chat, Switch between AI models, Create custom AI personas, Connect to popular apps, Generate images and analyze documents, Supports clean energy initiatives

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Viro AI Premium (Monthly) | $0.99 | per month |
| Viro AI Monthly | $4.99 | per month |
| Viro AI Supercharged (Monthly) | $9.99 | per month |
| Viro AI Premium (Annual) | $9.99 | per year |
| Viro AI Supercharged Monthly | $12.99 | per month |
| Viro AI Annual | $49.99 | per year |
| Viro AI Supercharged (Annual) | $99.99 | per year |
| Viro AI Supercharged Annual | $129.99 | per year |


### Zenith Time

[App page](https://appshunter.io/ios/app/zenith-time/id6772258287)

Easily convert time zones for current and future dates across multiple cities. Solves the problem of coordinating meetings, calls, or travel across different time zones without manual calculation. Supports a wide range of cities and offers theme options for user comfort.

**Highlights:** Future date time zone conversion, Multiple city support, UTC offset badges, Date rollover indicators, Extensive city coverage, Dark/light themes

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

**In-app purchases:** none


## Frequently asked questions

### Is Viro free?

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

### Is Zenith Time free?

Zenith Time costs $0.99, with no in-app purchases.

### Do Viro or Zenith Time have ads?

Neither Viro nor Zenith Time shows ads.

### Which is updated more often, Viro or Zenith Time?

Viro ships an update every 8 days, and Zenith Time every 2 months. Most recently, Viro was updated on October 30, 2026 and Zenith Time on October 31, 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.*