# iStroboSoft vs Rational Tonality

The clearest difference is rating: Rational Tonality at 5.0 against iStroboSoft's 4.3. Rational Tonality also leads on price ($1.00 vs $9.99) and in-app purchases (none vs 11). iStroboSoft's advantage is ratings volume (298 vs 7) and chart position (#43 vs unranked). On update cadence, ads, device support and iOS requirement there is nothing between them.

iStroboSoft costs $9.99 and Rational Tonality $1.00 up front. iStroboSoft sells 11 one-off in-app purchases. Rational Tonality asks for nothing beyond the download.

Rational Tonality holds the better App Store score, 5.0 against 4.3. That said, the two scores are not equally well evidenced: iStroboSoft has 298 ratings behind it against 7, so its average is the more settled of the two.

iStroboSoft ships an update fortnightly, Rational Tonality every 10 days. The most recent releases landed on October 21, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | iStroboSoft | Rational Tonality |
| --- | --- | --- |
| Price | $9.99 | **$1.00** |
| Rating | [4.3 (298 ratings)](https://appshunter.io/ios/app/istrobosoft/id308296029/reviews) | **[5.0 (7 ratings)](https://appshunter.io/ios/app/rational-tonality/id1634264373/reviews)** |
| Number of ratings | **298** | 7 |
| Positive reviews | 76.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | **#43** | — |
| Size | 5 MB | 41 MB |
| Requires iOS | **12.0** | 13.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Peterson Tuners](https://appshunter.io/developer/308296032) | [Scott Dixon](https://appshunter.io/developer/1634264375) |

## What reviewers say

### iStroboSoft

[App page](https://appshunter.io/ios/app/istrobosoft/id308296029)

**Currently charting:** #43 Top Paid · Music (US App Store)

This application provides highly accurate tuning for musical instruments, offering professional-grade precision with a real-time strobe display. It supports various tuning modes, temperaments, and input methods, making it suitable for both acoustic and electric instruments.

**Highlights:** 1/10th cent accuracy, Real-time strobe display, Guided Mode Tuning, 12 Temperaments with adjustable root, Assisted Low Note Detection, Drop/Capo mode, Adjustable Concert A

**Features:** Vision Pro support

**In-app purchases (11)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Extended Frequency Modes | $4.99 | one-time |
| Bluegrass Sweeteners | $5.99 | one-time |
| Buzz Feiten Pack | $5.99 | one-time |
| Guitar & Bass Sweeteners | $5.99 | one-time |
| Orchestral Sweeteners | $5.99 | one-time |
| World Sweetener Pack | $9.99 | one-time |
| Tuning Tools | $9.99 | one-time |
| Steel Guitar Sweeteners | $14.99 | one-time |
| Harmonic Tuning | $19.99 | one-time |
| Keyboard Sweeteners | $19.99 | one-time |
| Full Discounted Upgrade Pack | $59.99 | one-time |

**What reviewers like**

- 🚀 Extremely accurate
- 🔒 Reliable and stable
- 👍 Fantastic for instrument setup and intonation
- 👍 Portable and convenient
- 👍 Excellent value for the price

**What reviewers complain about**

- 🐛 Compatibility issues with iOS updates
- 💰 Expensive in-app purchases for additional features
- 🐛 Inconsistent performance, jumps between notes
- 🐛 Struggles with low and high notes
- 🐛 Microphone input not always reliable

**Reported bugs**

- App freezes or crashes on certain iOS versions
- Incorrect note detection on some instruments
- Display issues with newer iPhone/iPad models

**Requested features**

- Add support for more sweetened tunings and temperaments
- Improve display visibility and layout for newer devices
- Integrate with audio apps and allow routing through other apps
- Add Apple Watch app for quick tuning access
- Improve noise filtering and input sensitivity


### Rational Tonality

[App page](https://appshunter.io/ios/app/rational-tonality/id1634264373)

This app provides reference tones for musicians playing continuous-pitch instruments. It helps achieve resonant ensemble intonation during solo practice sessions. Updates and tutorials are planned soon.

**Highlights:** Reference tones for practice, Continuous-pitch instrument support, Ensemble intonation training, Solo practice aid, Soft launch version

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

**In-app purchases:** none


## Frequently asked questions

### Is iStroboSoft free?

iStroboSoft costs $9.99, and also offers in-app purchases.

### Is Rational Tonality free?

Rational Tonality costs $1.00, with no in-app purchases.

### Which has better reviews, iStroboSoft or Rational Tonality?

Rational Tonality is rated higher. iStroboSoft averages 4.3 out of 5 from 298 ratings, while Rational Tonality averages 5.0 from 7 ratings.

### Do iStroboSoft or Rational Tonality have ads?

Neither iStroboSoft nor Rational Tonality shows ads.

### Which is updated more often, iStroboSoft or Rational Tonality?

iStroboSoft ships an update fortnightly, and Rational Tonality every 10 days. Most recently, iStroboSoft was updated on October 21, 2026 and Rational Tonality on October 10, 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.*