# Strobe Light Tachometer vs OctoApp for OctoPrint/Klipper

The clearest difference is rating: OctoApp for OctoPrint/Klipper at 4.9 against Strobe Light Tachometer's 4.2. OctoApp for OctoPrint/Klipper also leads on update cadence (every 9 days vs every 7 months) and review sentiment (93% vs 63%). Strobe Light Tachometer's advantage is in-app purchases (none vs 15) and iOS requirement (7.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. OctoApp for OctoPrint/Klipper sells 8 in-app purchases, starting at $0.99 per month. Strobe Light Tachometer asks for nothing beyond the download.

OctoApp for OctoPrint/Klipper holds the better App Store score, 4.9 against 4.2. Both are backed by a comparable volume of ratings — 277 and 1.3K respectively. Written reviews point the same way: 63% of Strobe Light Tachometer's written reviews are positive against 93% of OctoApp for OctoPrint/Klipper's.

Strobe Light Tachometer ships an update every 7 months, OctoApp for OctoPrint/Klipper every 9 days. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | Strobe Light Tachometer | OctoApp for OctoPrint/Klipper |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (277 ratings)](https://appshunter.io/ios/app/strobe-light-tachometer/id978182913/reviews) | **[4.9 (1.3K ratings)](https://appshunter.io/ios/app/octoapp-for-octoprintklipper/id1658133862/reviews)** |
| Number of ratings | 277 | **1.3K** |
| Positive reviews | 63.2% of reviews | **92.9% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 9 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 4 MB | 248 MB |
| Requires iOS | **7.0** | 17.6 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Motionics LLC](https://appshunter.io/developer/424498959) | [Erhard Christian Wurthner](https://appshunter.io/developer/1658133864) |

## What reviewers say

### Strobe Light Tachometer

[App page](https://appshunter.io/ios/app/strobe-light-tachometer/id978182913)

Transform your iPhone into a powerful strobe light and tachometer. Precisely control flashing speeds from 1Hz to 130Hz to measure the RPM of rotating objects by making them appear stationary. Ideal for precise speed measurements in dark environments.

**Highlights:** Adjustable strobe speed (1-130Hz / 60-7800RPM), Quick adjustment buttons (x2, ÷2), Fine-tuning buttons for precise speed, Manual RPM input, Display speed in Hz and RPM, Light/dark background option

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

**In-app purchases:** none

**What reviewers like**

- ✅ Accurate frequency and RPM measurements
- 👍 Simple and user-friendly interface
- 🎓 Excellent educational tool for teaching frequency concepts
- 💰 Free application
- ⚡ Quick and easy to use, even one-handed

**What reviewers complain about**

- 💡 LED flash brightness is too dim
- 🐛 Strobe light cuts out or blacks out intermittently
- 🐛 Inconsistent and erratic flashing patterns
- ⚠️ Hardware compatibility issues with older iPhone models
- 🐛 Strobe stops working after extended use

**Reported bugs**

- Strobe light cuts out every 2-3 seconds then resumes
- LED flashes erratically on certain iPhone models (iPhone 14, iPhone XS, iPhone SE)
- Strobe pulse is inconsistent and misses beats
- App crashes or stops working after 20-30 minutes
- Requires manual LED activation before starting strobe

**Requested features**

- Ability to adjust brightness while strobe is running
- Display accuracy specifications and hardware limitations
- Option to set frequency by Hz in addition to RPM
- Ability to specify number of fan blades for accurate RPM calculation
- 2x and 1/2x multiplier options


### OctoApp for OctoPrint/Klipper

[App page](https://appshunter.io/ios/app/octoapp-for-octoprintklipper/id1658133862)

Control and monitor your 3D printers remotely from your iOS device. Prepare prints, manage files, and tune settings in real-time with a streamlined interface. Supports OctoPrint, Klipper, and various printer brands.

**Highlights:** Remote printer control, Print preparation, File management, Webcam support, Notifications, Gcode viewer, Plugin support

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support for 1 month | $0.99 | per month |
| Support for 1 year | $6.99 | per year |
| All features (Transfer) | Free | one-time |
| Tip the developer | $1.99 | one-time |
| All features | $11.99 | one-time |
| All features | $12.99 | one-time |
| All features | $14.99 | one-time |
| All features | $17.99 | one-time |

**What reviewers like**

- 🚀 Excellent remote monitoring and control
- 👍 Seamless integration with OctoPrint and plugins
- 💡 Customizable and flexible UI
- 🔒 Secure remote access with OctoEverywhere
- ⭐ Exceptional customer support

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 🔌 Unreliable remote access at times

**Reported bugs**

- Incorrect notifications for print progress
- Compatibility issues with some printer models

**Requested features**

- Add support for Klipper-based printer firmwares
- Implement iOS widgets for quick status checks
- Improve camera rotation options


## Frequently asked questions

### Is Strobe Light Tachometer free?

Strobe Light Tachometer is free to download, with no in-app purchases.

### Is OctoApp for OctoPrint/Klipper free?

OctoApp for OctoPrint/Klipper is free to download, with in-app purchases available.

### Which has better reviews, Strobe Light Tachometer or OctoApp for OctoPrint/Klipper?

OctoApp for OctoPrint/Klipper is rated higher. Strobe Light Tachometer averages 4.2 out of 5 from 277 ratings, while OctoApp for OctoPrint/Klipper averages 4.9 from 1.3K ratings.

### Do Strobe Light Tachometer or OctoApp for OctoPrint/Klipper have ads?

Neither Strobe Light Tachometer nor OctoApp for OctoPrint/Klipper shows ads.

### Which is updated more often, Strobe Light Tachometer or OctoApp for OctoPrint/Klipper?

Strobe Light Tachometer ships an update every 7 months, and OctoApp for OctoPrint/Klipper every 9 days. Most recently, Strobe Light Tachometer was updated on September 22, 2026 and OctoApp for OctoPrint/Klipper on September 24, 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.*