# Back translation vs Across Time

The clearest difference is ads: Across Time at none against Back translation's shown. Across Time also leads on update cadence (every 3 days vs fortnightly) and iOS requirement (15.1 vs 18.0). On price, 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.

Back translation ships an update fortnightly, Across Time every 3 days. The most recent releases landed on October 20, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Back translation | Across Time |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (4 ratings)](https://appshunter.io/ios/app/across-time-world-clock/id6754833404/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 3 days** |
| Monetization | — | Free |
| Size | 37 MB | 33 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) | [Sai Surya Chandana Satti](https://appshunter.io/developer/1850391301) |

## What reviewers say

### Back translation

[App page](https://appshunter.io/ios/app/back-translation/id6701995884)

**Features:** macOS Compatibility

**In-app purchases:** none


### Across Time

[App page](https://appshunter.io/ios/app/across-time-world-clock/id6754833404)

Easily track time across multiple timezones with this app. Set alarms and reminders that work reliably in any timezone, and convert times instantly. Perfect for global coordination and managing your schedule.

**Highlights:** Track 100+ cities worldwide, Set alarms in any timezone, Timezone-aware reminders, Instant time converter, Day/night indicators, Works offline, No ads

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Back translation free?

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

### Is Across Time free?

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

### Do Back translation or Across Time have ads?

Back translation shows ads; Across Time does not.

### Which is updated more often, Back translation or Across Time?

Back translation ships an update fortnightly, and Across Time every 3 days. Most recently, Back translation was updated on October 20, 2026 and Across Time on October 24, 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.*