# 369Sonic vs my16c

The clearest difference is in-app purchases: 369Sonic at none against my16c's 1. 369Sonic also leads on iOS requirement (13.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. my16c sells 1 one-off in-app purchase. 369Sonic asks for nothing beyond the download.

369Sonic ships an update every 9 days, my16c fortnightly. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | 369Sonic | my16c |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 9 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [369sonic s.r.o.](https://appshunter.io/developer/1740955289) | [Miroslav Perovic](https://appshunter.io/developer/400748424) |

## What reviewers say

### 369Sonic

[App page](https://appshunter.io/ios/app/369sonic/id6496356519)

**Features:** macOS Compatibility

**In-app purchases:** none


### my16c

[App page](https://appshunter.io/ios/app/my16c/id6762121583)

This app emulates a legendary programmer's calculator from the 1980s, offering cycle-accurate performance and faithful reproduction of its features. It includes base conversions, bit manipulation, RPN, and programmability, with modern conveniences like iCloud sync and a dark interface.

**Highlights:** Cycle-accurate emulation, Full base conversion (HEX, DEC, OCT, BIN), Bit operations, RPN entry, Programmable, Authentic LCD display, Word size control

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full App | $9.99 | one-time |


## Frequently asked questions

### Is 369Sonic free?

369Sonic is free to download, with no in-app purchases.

### Is my16c free?

my16c is free to download, with in-app purchases available.

### Do 369Sonic or my16c have ads?

Neither 369Sonic nor my16c shows ads.

### Which is updated more often, 369Sonic or my16c?

369Sonic ships an update every 9 days, and my16c fortnightly. Most recently, 369Sonic was updated on October 15, 2026 and my16c on October 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.*