Spektrum AS3X Programmer vs OctoApp for OctoPrint/Klipper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Spektrum AS3X Programmer
This free app allows users to program Spektrum AS3X receivers with an intuitive interface. Customize flight modes, servo settings, and channel mapping for an expertly tuned flying experience. Compatible with select Spektrum AS3X receivers.
- Create AS3X flight modes
- Activate wing and tail mixes
- Make servo adjustments
- Adjust dual rate and expo
- Map output for each channel
- Make gain adjustments
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This free AS3X® programming app is for use with next generation Spektrum™ AS3X receivers. Using its intuitive graphical interface you can: - Create different AS3X flight modes - Activate different wing and tail mixes - Make servo adjustments: reverse, subtrim, travel and balance - Adjust dual rate and expo - Map output for each channel - Make gain adjustments And more! It is compatible with the following Spektrum AS3X receivers: · AR6335 6-Channel Nanolite (SPMAR6335) · AR636 6-Channel Sport (SPMAR636) · AR7350 7-Channel (SPMAR7350) · AR9350 9-Channel (SPMAR9350) A Spektrum AS3X Programming Cable with Audio Connector (SPMA3080) is required. What is AS3X Technology? AS3X (Artificial Stabilization – 3-aXis) technology is a combination of 3-axis sensors and exclusive software that works behind the scenes to smooth out the effects of disruptive forces like turbulence and torque. It doesn’t limit your control or fly the plane for you. You simply feel like you’re flying an expertly tuned model that does exactly what you want. To learn more about AS3X technology, visit spektrumrc.com/AS3X.
OctoApp for OctoPrint/Klipper
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.
- Remote printer control
- Print preparation
- File management
- Webcam support
- Notifications
- Gcode viewer
- Plugin support
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OctoApp is build with iOS in mind and is completely optimized for being used on a iPhone or iPad. The app supports OctoPrint and Klipper (Moonraker, Mainsail and Fluidd), Bambu Lab and Elegoo printers. The UI is structured into three workspaces: Connect, Prepare, Print. The Connect workspace helps you get your printer connected to OctoPrint and as soon as a printer is available OctoApp will move to the Prepare workspace. Here you can get ready for your next print! Heat your hotend, swap filament or level the bed. When you are ready and start your print, OctoApp shows the Print workspace where you can control and tune your print! This concepts allows for a simple and fast UI while not sacrificing on features! OctoApp already offers you: + Easy print preparation + Control your print + Full file access and management + Full terminal access + Flow rate, Feed rate and fan controls + Webcam support (also muticam support) + Dark mode + High performance + Notifications about your print and filament + Gcode Viewer + Support for multiple printers + Many power control plugins like PSU Control or IKEA Tradfri + Automatic lights + PrintTimeGenius support + Support for many of your favourite plugins, like ArcWelder or SpoolManager + Remote connection with supported plugin or manual setup, the app switches automatically + OctoEverywhere integration + Obico integration + Works with VPNs, HTTPS and Basic Auth + And much, much more! There is a new feature update roughly 4-8 weeks! Let me know what you are missing! Important notice for remote connections: The app does not provide required servers. You can either set something up yourself and provide the app with a URL reachable over the internet or use a plugin like OctoEverywhere, The Spaghetti Detective or ngrok. --- OctoApp is made for and compatible with but not officially associated with OctoPrint. OctoPrint is a registered trademark. Learn more at octoprint.org OctoApp is not associated with Obico, Bambu Lab, OctoEverywhere, Elegoo or other services integrated --- https://octoapp.eu/terms/
Screenshots
Verdict
The clearest difference is review sentiment: OctoApp for OctoPrint/Klipper at 93% against Spektrum AS3X Programmer's 11%. OctoApp for OctoPrint/Klipper also leads on rating (4.9 vs 2.2) and update cadence (every 10 days vs every 6 months). Spektrum AS3X Programmer's advantage is in-app purchases (none vs 15) and iOS requirement (8.0 vs 17.6). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. OctoApp for OctoPrint/Klipper sells 8 in-app purchases, starting at $0.99 per month. Spektrum AS3X Programmer asks for nothing beyond the download.
OctoApp for OctoPrint/Klipper holds the better App Store score, 4.9 against 2.2. That said, the two scores are not equally well evidenced: OctoApp for OctoPrint/Klipper has 1.3K ratings behind it against 62, so its average is the more settled of the two. Written reviews point the same way: 11% of Spektrum AS3X Programmer's written reviews are positive against 93% of OctoApp for OctoPrint/Klipper's.
Spektrum AS3X Programmer ships an update every 6 months, OctoApp for OctoPrint/Klipper every 10 days. The most recent releases landed on October 14, 2026 and October 19, 2026 respectively.
| Parameter | Spektrum AS3X Programmer | OctoApp for OctoPrint/Klipper |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (62 ratings) | 4.9 (1.3K ratings) — better |
| Positive reviews | 10.6% of reviews | 92.9% of reviews — better |
| Number of ratings | 62 | 1.3K — better |
| Update frequency | Every 6 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPad, Apple Watch — better |
| Requires iOS | 8.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 23 MB | 249 MB |
| Age rating | 4+ | 4+ |
| Developer | Horizon Hobby | Erhard Christian Wurthner |
Customer experience
Spektrum AS3X Programmer
OctoApp for OctoPrint/Klipper
User reviews
Spektrum AS3X Programmer
From 62 App Store ratingsWhat we love
- 👍 Good layout, easy to use (Gahspidy)
- 👍 Nice App, well laid out (Woolyhair)
- 👍 Works great on multiple iPhones (rcheli108)
- 👍 New app fixes issues (poodle35)
Room to improve
- ❌ Not supported AR630 receiver (stuthefoo)
- ❌ Not supported AR631 receiver (jensonearth)
- ❌ No support for helicopters (eric823785862847582738472)
- ❌ Graphics misalignment (txkflier)
- ❌ No app for NX6 (bjonesy68)
OctoApp for OctoPrint/Klipper
From 1.3K App Store ratingsWhat we love
- 🚀 Excellent remote monitoring and control
- 👍 Seamless integration with OctoPrint and plugins
- 💡 Customizable and flexible UI
- 🔒 Secure remote access with OctoEverywhere
- ⭐ Exceptional customer support
Room to improve
- 🐛 Occasional connectivity issues
- 🔌 Unreliable remote access at times
Bugs and requests
Spektrum AS3X Programmer
Reported bugs
14 issues- 🐛 App crashes constantly (eric823785862847582738472, mqvw, Supergreekster, Chloe Prince, TaylorcBa, Hallucion)
- 🐛 Graphics misalignment (txkflier, Gahspidy, Supergreekster)
- 🐛 Drops connections (mqvw, FCVDM, rcfkyer)
- 🐛 Does not connect to receivers (leddhedd528, specktrum user, LeDotB, Gusmann)
- 🐛 Receiver craped out after update (gianny911)
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- 🐛 Throttle settings not working correctly (Blackopsr)
- 🐛 Loses synchronization with receiver (Docdan1954)
- 🐛 Doesn't retain settings (Docdan1954)
- 🐛 Difficult to trim servos (Docdan1954)
- 🐛 App unstable on iPhone/Android (PedroGCAS)
- 🐛 No indicator for reading/writing (C182-Pilot)
- 🐛 App crashes when scrolling through model types (TaylorcBa)
- 🐛 Doesn't recognize receivers on newer iPhones (Hungpham55, Chuck 77)
- 🐛 Bluetooth dongle issues (jensonearth, FCVDM, specktrum user, LeDotB, Mac Gramps)
Requested features
14 requests- 💡 Update app for newer receivers (stuthefoo, nate1490)
- 💡 Support for helicopters (eric823785862847582738472)
- 💡 Fix graphics misalignment (txkflier)
- 💡 App for NX6 (bjonesy68)
- 💡 Import model feature (Tupolev pilot, Cables55)
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- 💡 Update app (Mulkey71)
- 💡 Add "safe" switch option (Woolyhair)
- 💡 Allow trim buttons on radio to work (Woolyhair)
- 💡 Add factory setups for Horizon BNF planes (Cables55)
- 💡 Indicator for reading/writing to receiver (C182-Pilot)
- 💡 Instruction manual for apps (C182-Pilot)
- 💡 Support for iPhone 6 (rui_s, Chuck 77)
- 💡 Support for DXe transmitter (Adam Bomb #1, mankato, Jeffropaige, Blues Shack)
- 💡 Allow helicopter selection (axolotls)
OctoApp for OctoPrint/Klipper
Reported bugs
2 issues- Incorrect notifications for print progress
- Compatibility issues with some printer models
Requested features
3 requests- Add support for Klipper-based printer firmwares
- Implement iOS widgets for quick status checks
- Improve camera rotation options
In-app purchases
Spektrum AS3X Programmer
No in-app purchases
OctoApp for OctoPrint/Klipper
- Support for 1 month$0.991 Month
- Support for 1 year7 Days trial$6.991 Year
- All features (Transfer)Free
- Tip the developer$1.99
- All features$11.99
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- All features8 variants$12.99
- All features$14.99
- All features$17.99
Questions
Is Spektrum AS3X Programmer free?
Is OctoApp for OctoPrint/Klipper free?
Which has better reviews, Spektrum AS3X Programmer or OctoApp for OctoPrint/Klipper?
Do Spektrum AS3X Programmer or OctoApp for OctoPrint/Klipper have ads?
Which is updated more often, Spektrum AS3X Programmer or OctoApp for OctoPrint/Klipper?
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