# OnTalk SaaS vs RADsync

The clearest difference is iOS requirement: OnTalk SaaS at 14.0 against RADsync's 16.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OnTalk SaaS ships an update every 3 months, RADsync every 5 months. The most recent releases landed on October 3, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | OnTalk SaaS | RADsync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/radsync/id1568500244/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | — | Free |
| Size | 114 MB | 46 MB |
| Requires iOS | **14.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [TreeBox Solutions Pte Ltd](https://appshunter.io/developer/1110587306) | [innoRIID GmbH](https://appshunter.io/developer/1568500246) |

## What reviewers say

### OnTalk SaaS

[App page](https://appshunter.io/ios/app/ontalk-saas/id1480677689)

**In-app purchases:** none


### RADsync

[App page](https://appshunter.io/ios/app/radsync/id1568500244)

Connect your radiation isotope identification instruments to your iOS device. Store, annotate, and share collected measurements and reports via email. Requires a compatible RADEAGLE device.

**Highlights:** Bluetooth and Network connectivity, Data repository for measurements, Annotate measurements and reports, Email sharing of data, Supports multiple RADEAGLE instruments

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OnTalk SaaS free?

OnTalk SaaS is free to download, with no in-app purchases.

### Is RADsync free?

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

### Do OnTalk SaaS or RADsync have ads?

Neither OnTalk SaaS nor RADsync shows ads.

### Which is updated more often, OnTalk SaaS or RADsync?

OnTalk SaaS ships an update every 3 months, and RADsync every 5 months. Most recently, OnTalk SaaS was updated on October 3, 2026 and RADsync on October 1, 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.*