# Cainiao Tracking vs Flex Calculators

The clearest difference is in-app purchases: Cainiao Tracking at none against Flex Calculators's 1. Flex Calculators's advantage is ads (none vs shown) and update cadence (every 10 days vs every 8 months). On price and iOS requirement there is nothing between them.

Both are free to download. Flex Calculators sells 1 one-off in-app purchase. Cainiao Tracking asks for nothing beyond the download.

Cainiao Tracking ships an update every 8 months, Flex Calculators every 10 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Cainiao Tracking | Flex Calculators |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 8 months | **Every 10 days** |
| Size | 50 MB | 37 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Azad Hossen](https://appshunter.io/developer/1851826146) | [An Le](https://appshunter.io/developer/1863975090) |

## What reviewers say

### Cainiao Tracking

[App page](https://appshunter.io/ios/app/cainiao-tracking-global/id6755402927)

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

**In-app purchases:** none


### Flex Calculators

[App page](https://appshunter.io/ios/app/flex-calculators/id6761326502)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is Cainiao Tracking free?

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

### Is Flex Calculators free?

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

### Do Cainiao Tracking or Flex Calculators have ads?

Cainiao Tracking shows ads; Flex Calculators does not.

### Which is updated more often, Cainiao Tracking or Flex Calculators?

Cainiao Tracking ships an update every 8 months, and Flex Calculators every 10 days. Most recently, Cainiao Tracking was updated on October 28, 2026 and Flex Calculators on October 31, 2026.

---

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