# Servicio Sierra vs Invoice AI

The clearest difference is update cadence: Invoice AI at every 5 weeks against Servicio Sierra's every 3 months. On price, ads, 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.

Servicio Sierra ships an update every 3 months, Invoice AI every 5 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Servicio Sierra | Invoice AI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (11 ratings)](https://appshunter.io/ios/app/invoice-ai/id6473922572/reviews)** |
| Number of ratings | — | **11** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 5 weeks** |
| Monetization | — | Free |
| Size | 28 MB | 43 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Certuit Consultores, S.C.](https://appshunter.io/developer/1128576004) | [Crafty Apps](https://appshunter.io/developer/320546449) |

## What reviewers say

### Servicio Sierra

[App page](https://appshunter.io/ios/app/servicio-sierra/id1437815191)

**Features:** macOS Compatibility

**In-app purchases:** none


### Invoice AI

[App page](https://appshunter.io/ios/app/invoice-ai/id6473922572)

Generate professional invoices and estimates with AI assistance. Manage clients, track sales, and receive automated financial reports. Supports voice commands and multilingual options for efficient business management.

**Highlights:** Voice invoicing, AI sales projections, Multilingual support, Smart assistant, Automatic reports, Daily backups

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

**In-app purchases:** none


## Frequently asked questions

### Is Servicio Sierra free?

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

### Is Invoice AI free?

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

### Do Servicio Sierra or Invoice AI have ads?

Neither Servicio Sierra nor Invoice AI shows ads.

### Which is updated more often, Servicio Sierra or Invoice AI?

Servicio Sierra ships an update every 3 months, and Invoice AI every 5 weeks. Most recently, Servicio Sierra was updated on November 2, 2026 and Invoice AI on November 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.*