# ZTE vs Billd Estimate & Invoice Maker

The clearest difference is in-app purchases: ZTE at none against Billd Estimate & Invoice Maker's 4. Billd Estimate & Invoice Maker's advantage is update cadence (monthly vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Billd Estimate & Invoice Maker sells 4 in-app purchases, starting at $2.99 per month. ZTE asks for nothing beyond the download.

ZTE ships an update every 2 months, Billd Estimate & Invoice Maker monthly. Both last shipped on October 4, 2026.

## The numbers

| Metric | ZTE | Billd Estimate & Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 4 MB | 17 MB |
| Requires iOS | 14.0 | 14.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zac Thompson](https://appshunter.io/developer/1493542555) | [Abdulla Yasin](https://appshunter.io/developer/1407887788) |

## What reviewers say

### ZTE

[App page](https://appshunter.io/ios/app/zte/id1571248729)

**Features:** macOS Compatibility

**In-app purchases:** none


### Billd Estimate & Invoice Maker

[App page](https://appshunter.io/ios/app/billd-estimate-and-invoice-maker/id6478083451)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| One Month Pro | $2.99 | per month |
| Three Month | $5.99 | per 3 months |
| One Year | $17.99 | per year |
| Life time - One time | $24.99 | one-time |


## Frequently asked questions

### Is ZTE free?

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

### Is Billd Estimate & Invoice Maker free?

Billd Estimate & Invoice Maker is free to download, with in-app purchases available.

### Do ZTE or Billd Estimate & Invoice Maker have ads?

Neither ZTE nor Billd Estimate & Invoice Maker shows ads.

### Which is updated more often, ZTE or Billd Estimate & Invoice Maker?

ZTE ships an update every 2 months, and Billd Estimate & Invoice Maker monthly. Most recently, ZTE was updated on October 4, 2026 and Billd Estimate & Invoice Maker on October 4, 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.*