# iStroboSoft vs Slide School

The clearest difference is price: Slide School at Free against iStroboSoft's $9.99. Slide School also leads on rating (5.0 vs 4.3) and in-app purchases (none vs 11). iStroboSoft's advantage is ratings volume (298 vs 8) and chart position (#15 vs unranked). On update cadence, ads and device support there is nothing between them.

Slide School is free to download; iStroboSoft costs $9.99 up front. iStroboSoft sells 11 one-off in-app purchases. Slide School asks for nothing beyond the download.

Slide School 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 8, so its average is the more settled of the two.

iStroboSoft ships an update fortnightly, Slide School every 3 weeks. The most recent releases landed on October 1, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | iStroboSoft | Slide School |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.3 (298 ratings)](https://appshunter.io/ios/app/istrobosoft/id308296029/reviews) | **[5.0 (8 ratings)](https://appshunter.io/ios/app/slide-school/id6499040931/reviews)** |
| Number of ratings | **298** | 8 |
| Positive reviews | 76.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#15** | — |
| Size | 5 MB | 49 MB |
| Requires iOS | **12.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Peterson Tuners](https://appshunter.io/developer/308296032) | [Slide School LLC](https://appshunter.io/developer/1756338228) |

## What reviewers say

### iStroboSoft

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

**Currently charting:** #15 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


### Slide School

[App page](https://appshunter.io/ios/app/slide-school/id6499040931)

Access all your educational videos in one convenient app. Receive timely notifications for news and updates, and easily save your favorite content for quick retrieval.

**Highlights:** Access all videos in one app, Push notifications for news, Password-free video access, Save favorite posts, Easy to use interface

**In-app purchases:** none


## Frequently asked questions

### Is iStroboSoft free?

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

### Is Slide School free?

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

### Which has better reviews, iStroboSoft or Slide School?

Slide School is rated higher. iStroboSoft averages 4.3 out of 5 from 298 ratings, while Slide School averages 5.0 from 8 ratings.

### Do iStroboSoft or Slide School have ads?

Neither iStroboSoft nor Slide School shows ads.

### Which is updated more often, iStroboSoft or Slide School?

iStroboSoft ships an update fortnightly, and Slide School every 3 weeks. Most recently, iStroboSoft was updated on October 1, 2026 and Slide School on September 19, 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.*