# Smaart RTA vs D

The clearest difference is in-app purchases: D at none against Smaart RTA's 6. D also leads on rating (5.0 vs 4.8). Smaart RTA's advantage is ratings volume (492 vs 3) and chart position (#166 vs unranked). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Smaart RTA sells 6 in-app purchases, starting at $1.99 per month. D asks for nothing beyond the download.

D holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Smaart RTA has 492 ratings behind it against 3, so its average is the more settled of the two.

Smaart RTA ships an update every 2 months, D every 3 months. The most recent releases landed on October 25, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Smaart RTA | D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (492 ratings)](https://appshunter.io/ios/app/smaart-rta/id6738144288/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/d-remote/id6745768913/reviews)** |
| Number of ratings | **492** | 3 |
| Positive reviews | 40.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#166** | — |
| Size | 11 MB | 34 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | +4 |
| Developer | [Rational Acoustics LLC](https://appshunter.io/developer/1755441542) | [Yamaha Corporation](https://appshunter.io/developer/353469356) |

## What reviewers say

### Smaart RTA

[App page](https://appshunter.io/ios/app/smaart-rta/id6738144288)

**Currently charting:** #166 Top Grossing · Music (US App Store)

Analyze audio in real time with professional-grade tools. Visualize frequency content, manage feedback, and monitor sound pressure levels with precision and ease, all from your mobile device.

**Highlights:** Professional RTA graph with averaging options, Spectrograph for feedback and frequency management, SPL meter with A & C weighting, Adjustable RTA graph settings, Plot calibrated levels, Target curves

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Smaart RTA - Monthly | $1.99 | per month |
| Smaart RTA Pro - Monthly | $4.99 | per month |
| Smaart RTA - Annual | $19.99 | per year |
| Smaart RTA Pro - Annual | $49.99 | per year |
| Smaart RTA - Lifetime | $59.99 | one-time |
| Smaart RTA Pro - Lifetime | $149.99 | one-time |


### D

[App page](https://appshunter.io/ios/app/d-remote/id6745768913)

Control DXR/DXS mk3 speaker parameters remotely via Bluetooth from your iOS device. Adjust levels, EQ, and more in real-time from anywhere in the venue. Monitor speaker status and manage multiple units simultaneously.

**Highlights:** Remote parameter control via Bluetooth, Real-time level and EQ adjustments, Monitor limiter activity and temperature, Control up to ten speakers simultaneously, Grouping for unified control, Scene save/recall functionality

**In-app purchases:** none


## Frequently asked questions

### Is Smaart RTA free?

Smaart RTA is free to download, with in-app purchases available.

### Is D free?

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

### Which has better reviews, Smaart RTA or D?

D is rated higher. Smaart RTA averages 4.8 out of 5 from 492 ratings, while D averages 5.0 from 3 ratings.

### Do Smaart RTA or D have ads?

Neither Smaart RTA nor D shows ads.

### Which is updated more often, Smaart RTA or D?

Smaart RTA ships an update every 2 months, and D every 3 months. Most recently, Smaart RTA was updated on October 25, 2026 and D on October 22, 2026.

---

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