# SDR vs Hidden Room

The clearest difference is price: Hidden Room at Free against SDR's $44.99. Hidden Room also leads on rating (5.0 vs 4.5). SDR's advantage is in-app purchases (none vs 3) and ratings volume (64 vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Hidden Room is free to download; SDR costs $44.99 up front. Hidden Room sells 3 one-off in-app purchases. SDR asks for nothing beyond the download.

Hidden Room holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: SDR has 64 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 2 weeks. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | SDR | Hidden Room |
| --- | --- | --- |
| Price | $44.99 | **Free** |
| Rating | [4.5 (64 ratings)](https://appshunter.io/ios/app/sdr-control-mobile/id1673327509/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/hidden-room/id6790212597/reviews)** |
| Number of ratings | **64** | 1 |
| Positive reviews | 84.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | Every 2 weeks |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#187** | — |
| Size | 47 MB | 12 MB |
| Requires iOS | **17.6** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Marcus Roskosch](https://appshunter.io/developer/334053438) | [Kaleidosky Studio LLC](https://appshunter.io/developer/6773127434) |

## What reviewers say

### SDR

[App page](https://appshunter.io/ios/app/sdr-control-mobile/id1673327509)

**Currently charting:** #187 Top Paid · Utilities (US App Store)

Control your Icom transceiver remotely or locally from your iPhone. Operate in all modes, log QSOs, and utilize integrated digital modes like FT8/FT4 and SSTV. No extra hardware is needed for global access.

**Highlights:** Remote transceiver operation, All mode control, Auto logging logbook, Integrated FT8/FT4 tool, Integrated SSTV receiver, Integrated CW decoder and keyer, DX-Cluster integration

**In-app purchases:** none

**What reviewers like**

- 🚀 Works perfectly with ICOM radios
- 👍 Intuitive and easy to use
- 🌟 Feature-rich and comprehensive
- 💯 Stable and reliable performance
- 📱 Great for remote operation

**What reviewers complain about**

- 🐛 FT8 decoding issues (lower signal levels)
- 🐛 Dialogs do not scale with larger text setting
- 🐛 UI elements can be cramped on iPhone
- 🐛 Some buttons are small and hard to press
- 🐛 Frequency display overlaps buttons

**Reported bugs**

- Dialogs do not scale with larger text setting
- Frequency display overlaps buttons
- FT8 decoding issues (lower signal levels than WSJTX)
- App crashes and leaves radio in transmit
- Logbook export not functional after update

**Requested features**

- Develop for IC-7800
- CarPlay support
- Apple Watch add-on
- Windows version
- JS8call support


### Hidden Room

[App page](https://appshunter.io/ios/app/hidden-room/id6790212597)

Securely store sensitive contacts with advanced privacy features. This app offers encrypted storage, masked fields, and automatic locking to protect your personal and professional information.

**Highlights:** Encrypted contact storage, Masked contact fields, Automatic app locking, Optional Face ID/shuffled passcode, Emergency erase function, Automatic contact deletion

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $9.99 | one-time |
| Large Tip | $99.99 | one-time |


## Frequently asked questions

### Is SDR free?

SDR costs $44.99, with no in-app purchases.

### Is Hidden Room free?

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

### Which has better reviews, SDR or Hidden Room?

Hidden Room is rated higher. SDR averages 4.5 out of 5 from 64 ratings, while Hidden Room averages 5.0 from 1 ratings.

### Do SDR or Hidden Room have ads?

Neither SDR nor Hidden Room shows ads.

### Which is updated more often, SDR or Hidden Room?

SDR ships an update every 2 weeks, and Hidden Room every 2 weeks. Most recently, SDR was updated on October 20, 2026 and Hidden Room on October 12, 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.*