# Zonos vs Untether Labs

The clearest difference is review sentiment: Untether Labs at 100% against Zonos's 7%. Untether Labs also leads on rating (5.0 vs 3.6) and monetization model (free vs free with in-app purchases). Zonos's advantage is ratings volume (23 vs 3). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Untether Labs holds the better App Store score, 5.0 against 3.6. That said, the two scores are not equally well evidenced: Zonos has 23 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 7% of Zonos's written reviews are positive against 100% of Untether Labs's.

Zonos ships an update fortnightly, Untether Labs every 3 weeks. The most recent releases landed on October 13, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Zonos | Untether Labs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.6 (23 ratings)](https://appshunter.io/ios/app/zonos/id6747267592/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/untether-labs/id6756896876/reviews)** |
| Number of ratings | **23** | 3 |
| Positive reviews | 7.1% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 73 MB | 52 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zonos](https://appshunter.io/developer/1820479441) | [Untether Labs](https://appshunter.io/developer/1863542214) |

## What reviewers say

### Zonos

[App page](https://appshunter.io/ios/app/zonos/id6747267592)

Easily prepay U.S. duties on imports. Use AI to auto-fill customs details from a photo or enter them manually. Pay in your local currency and get a QR code for smooth shipping.

**Highlights:** AI-powered customs detail auto-fill, Manual item information entry, Calculate and prepay U.S. duties, Pay in local currency, Generate QR code/Declaration ID, Supports Canada Post and USPS (U.S. territories)

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Quickly calculates US duties

**What reviewers complain about**

- 🐛 Keeps crashing
- 🐛 Incorrect HTS codes being generated
- 🐛 Crashes midway through process
- 🐛 Errors out constantly
- 🐛 Crashes at every moment

**Reported bugs**

- Keeps crashing
- Incorrect HTS codes being generated
- Crashes midway through process
- Errors out constantly
- Crashes at every moment

**Requested features**

- Allow manual adjustment of HTS codes
- Recognize MFN duty-free HS codes and allow for a $0 duty prepay option


### Untether Labs

[App page](https://appshunter.io/ios/app/untether-labs/id6756896876)

This app streamlines hospital staff scheduling, allowing users to easily manage shifts, coordinate with colleagues, and track work hours. It offers a fast, intuitive interface for clocking in and out, making daily work management effortless.

**Highlights:** AI-powered scheduling, Shift management, Team coordination, Open shift opportunities, Time tracking (clock in/out, breaks), Intuitive interface

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

**In-app purchases:** none


## Frequently asked questions

### Is Zonos free?

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

### Is Untether Labs free?

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

### Which has better reviews, Zonos or Untether Labs?

Untether Labs is rated higher. Zonos averages 3.6 out of 5 from 23 ratings, while Untether Labs averages 5.0 from 3 ratings.

### Do Zonos or Untether Labs have ads?

Neither Zonos nor Untether Labs shows ads.

### Which is updated more often, Zonos or Untether Labs?

Zonos ships an update fortnightly, and Untether Labs every 3 weeks. Most recently, Zonos was updated on October 13, 2026 and Untether Labs on October 6, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*