# Spektrum AS3X Programmer vs Mobileraker

The clearest difference is review sentiment: Mobileraker at 81% against Spektrum AS3X Programmer's 11%. Mobileraker also leads on rating (4.9 vs 2.2) and update cadence (every 5 weeks vs every 6 months). Spektrum AS3X Programmer's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Mobileraker sells 10 in-app purchases, starting at $1.99 per month. Spektrum AS3X Programmer asks for nothing beyond the download.

Mobileraker holds the better App Store score, 4.9 against 2.2. That said, the two scores are not equally well evidenced: Mobileraker has 904 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 81% of Mobileraker's.

Spektrum AS3X Programmer ships an update every 6 months, Mobileraker every 5 weeks. Both last shipped on October 14, 2026.

## The numbers

| Metric | Spektrum AS3X Programmer | Mobileraker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.2 (62 ratings)](https://appshunter.io/ios/app/spektrum-as3x-programmer/id858134237/reviews) | **[4.9 (904 ratings)](https://appshunter.io/ios/app/mobileraker-klipper-ui/id1581451248/reviews)** |
| Number of ratings | 62 | **904** |
| Positive reviews | 10.6% of reviews | **81.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 5 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 23 MB | 130 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Horizon Hobby](https://appshunter.io/developer/415542050) | [Patrick Schmidt](https://appshunter.io/developer/1624526745) |

## What reviewers say

### Spektrum AS3X Programmer

[App page](https://appshunter.io/ios/app/spektrum-as3x-programmer/id858134237)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Good layout, easy to use (Gahspidy)
- 👍 Nice App, well laid out (Woolyhair)
- 👍 Works great on multiple iPhones (rcheli108)
- 👍 New app fixes issues (poodle35)

**What reviewers complain about**

- ❌ Not supported AR630 receiver (stuthefoo)
- ❌ Not supported AR631 receiver (jensonearth)
- ❌ No support for helicopters (eric823785862847582738472)
- ❌ Graphics misalignment (txkflier)
- ❌ No app for NX6 (bjonesy68)

**Reported bugs**

- 🐛 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)

**Requested features**

- 💡 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)


### Mobileraker

[App page](https://appshunter.io/ios/app/mobileraker-klipper-ui/id1581451248)

Control and monitor your Klipper 3D printer from your mobile device. Features include real-time print visualization, precision control, advanced monitoring, and file management.

**Highlights:** Real-time print visualization, Precision axis and temperature control, Advanced monitoring dashboard, Filament system management, Multi-printer fleet control, File management, Macro control

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Supporter | $1.99 | per month |
| Base | $4.99 | per month |
| Gold | $9.99 | per month |
| Yearly Supporter | $19.99 | per year |
| Tip the Dev | $2.00 | one-time |
| Tip the Dev | $4.00 | one-time |
| Tip the Dev | $9.00 | one-time |
| Tip the Dev | $22.00 | one-time |
| Lifetime Supporter Promotion | $29.99 | one-time |
| Lifetime Supporter | $39.99 | one-time |

**What reviewers like**

- 🚀 Responsive and fast
- 👍 Great user interface
- 💡 Excellent Klipper support
- 🔒 Secure remote access
- 👍 Versatile monitoring and control

**What reviewers complain about**

- 🐛 Occasional connectivity issues
- 💰 Ads in free version
- 🔒 Concerns about monetization

**Reported bugs**

- Webcam not working when printer is off
- Socket errors and timeouts

**Requested features**

- Customizable dashboard layout
- Persistent temperature/time prediction display
- Apple Watch integration
- Decimal support for temperature adjustments


## Frequently asked questions

### Is Spektrum AS3X Programmer free?

Spektrum AS3X Programmer is free to download, with no in-app purchases.

### Is Mobileraker free?

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

### Which has better reviews, Spektrum AS3X Programmer or Mobileraker?

Mobileraker is rated higher. Spektrum AS3X Programmer averages 2.2 out of 5 from 62 ratings, while Mobileraker averages 4.9 from 904 ratings.

### Do Spektrum AS3X Programmer or Mobileraker have ads?

Mobileraker shows ads; Spektrum AS3X Programmer does not.

### Which is updated more often, Spektrum AS3X Programmer or Mobileraker?

Spektrum AS3X Programmer ships an update every 6 months, and Mobileraker every 5 weeks. Most recently, Spektrum AS3X Programmer was updated on October 14, 2026 and Mobileraker on October 14, 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.*