# Viola Remote vs Cost Estimator & Invoice Maker

The clearest difference is in-app purchases: Viola Remote at none against Cost Estimator & Invoice Maker's 5. Viola Remote also leads on ads (none vs shown) and device support (3 vs 1). Cost Estimator & Invoice Maker's advantage is update cadence (monthly vs every 3 months). On price there is nothing between them.

Both are free to download. Cost Estimator & Invoice Maker sells 5 in-app purchases, starting at $39.99 per month. Viola Remote asks for nothing beyond the download.

Viola Remote ships an update every 3 months, Cost Estimator & Invoice Maker monthly. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Viola Remote | Cost Estimator & Invoice Maker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Monthly** |
| Size | 3 MB | 58 MB |
| Requires iOS | **9.3** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Viola Audio Laboratories](https://appshunter.io/developer/551056347) | [RYNKAH LIMITED](https://appshunter.io/developer/6790264168) |

## What reviewers say

### Viola Remote

[App page](https://appshunter.io/ios/app/viola-remote/id563608611)

**Features:** macOS Compatibility

**In-app purchases:** none


### Cost Estimator & Invoice Maker

[App page](https://appshunter.io/ios/app/cost-estimator-and-invoice-maker/id6804564070)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cost Estimator Pro Month | $39.99 | per month |
| Cost Estimator Business Month | $69.99 | per month |
| Cost Estimator Pro Year | $99.99 | per year |
| Pro Update to Business Year | $209.99 | per year |
| Cost Estimator Business Year | $299.99 | per year |


## Frequently asked questions

### Is Viola Remote free?

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

### Is Cost Estimator & Invoice Maker free?

Cost Estimator & Invoice Maker is free to download, with in-app purchases available.

### Do Viola Remote or Cost Estimator & Invoice Maker have ads?

Cost Estimator & Invoice Maker shows ads; Viola Remote does not.

### Which is updated more often, Viola Remote or Cost Estimator & Invoice Maker?

Viola Remote ships an update every 3 months, and Cost Estimator & Invoice Maker monthly. Most recently, Viola Remote was updated on October 14, 2026 and Cost Estimator & Invoice Maker on October 25, 2026.

---

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