# Sphere Time vs DeltaClock

The clearest difference is in-app purchases: Sphere Time at none against DeltaClock's 3. Sphere Time also leads on iOS requirement (9.3 vs 18.0). DeltaClock's advantage is update cadence (every 4 days vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. DeltaClock sells 3 in-app purchases, starting at $1.99 per month. Sphere Time asks for nothing beyond the download.

Sphere Time ships an update every 5 weeks, DeltaClock every 4 days. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | Sphere Time | DeltaClock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (10 ratings)](https://appshunter.io/ios/app/sphere-time/id1441017597/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Monetization | Free | — |
| Size | 33 MB | 24 MB |
| Requires iOS | **9.3** | 18.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sphere Consulting, Inc.](https://appshunter.io/developer/490104412) | [Ameliia Shekikhacheva](https://appshunter.io/developer/1833150935) |

## What reviewers say

### Sphere Time

[App page](https://appshunter.io/ios/app/sphere-time/id1441017597)

Easily convert time zones to stay connected globally. This app helps frequent travelers, those with international family, or professionals working across different regions understand the time in any city worldwide. It offers an intuitive interface for seamless time zone management.

**Highlights:** Intuitive time zone conversion, Supports multiple time zones simultaneously, Works offline with cached data, Global city database, Reduces meeting time zone confusion

**Features:** macOS Compatibility

**In-app purchases:** none


### DeltaClock

[App page](https://appshunter.io/ios/app/deltaclock-time-zone-planner/id6751021160)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Subscription Monthly | $1.99 | per month |
| Pro Subscription Annual | $9.99 | per year |
| Lifetime purchase | $24.99 | one-time |


## Frequently asked questions

### Is Sphere Time free?

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

### Is DeltaClock free?

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

### Do Sphere Time or DeltaClock have ads?

Neither Sphere Time nor DeltaClock shows ads.

### Which is updated more often, Sphere Time or DeltaClock?

Sphere Time ships an update every 5 weeks, and DeltaClock every 4 days. Most recently, Sphere Time was updated on November 2, 2026 and DeltaClock on October 30, 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.*