# Purolator vs SUB

The clearest difference is iOS requirement: Purolator at 16.0 against SUB's 18.0. 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.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Purolator | SUB |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (47 ratings)](https://appshunter.io/ios/app/purolator/id438701193/reviews)** | — |
| Number of ratings | **47** | — |
| Positive reviews | 1.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | Free | — |
| Size | 32 MB | 35 MB |
| Requires iOS | **16.0** | 18.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 12+ |
| Developer | [Purolator Inc.](https://appshunter.io/developer/438701196) | [Marmak Industries Ltd](https://appshunter.io/developer/1603074782) |

## What reviewers say

### Purolator

[App page](https://appshunter.io/ios/app/purolator/id438701193)

Manage all your shipping needs from your mobile device. Create shipments, track packages in real-time, get transit estimates, and schedule pickups. Find nearby shipping locations and receive proactive notifications for shipment updates.

**Highlights:** Create shipments, Track shipments, Get estimates and transit times, Schedule pickups, Find shipping locations, Proactive notifications

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- ✅ Reliable delivery service (when functioning)
- 📦 Basic package tracking capability
- ⚡ Quick access to shipment information (previously)

**What reviewers complain about**

- 🤖 Forced AI chatbot replacing functional tracking interface
- 💾 Cannot save or retain tracking numbers
- 📊 No tracking history or list view available
- 🔄 Must re-enter tracking number every single time
- ❌ Chatbot provides minimal/vague information

**Reported bugs**

- Chatbot fails to recognize valid tracking numbers
- App crashes when entering tracking information
- Tracking numbers display with invalid prefix (equal sign)
- App freezes for extended periods
- Tracking feature shows 'under maintenance' for weeks

**Requested features**

- Restore original tracking list/dashboard interface
- Allow saving and managing multiple tracking numbers
- Implement barcode scanning functionality
- Add in-app push notifications for tracking updates
- Include detailed tracking history and timeline view


### SUB

[App page](https://appshunter.io/ios/app/sub-zero/id6752495110)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Purolator free?

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

### Is SUB free?

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

### Do Purolator or SUB have ads?

Neither Purolator nor SUB shows ads.

### Which is updated more often, Purolator or SUB?

Purolator ships an update fortnightly, and SUB fortnightly. Most recently, Purolator was updated on October 22, 2026 and SUB on October 16, 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.*