# Debt in US vs HeatSync Labs

The clearest difference is update cadence: HeatSync Labs at every 4 months against Debt in US's every 27 months. On price, ads, in-app purchases and device support there is nothing between them.

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

Debt in US ships an update every 27 months, HeatSync Labs every 4 months. The most recent releases landed on November 3, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Debt in US | HeatSync Labs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (16 ratings)](https://appshunter.io/ios/app/debt-in-us/id1489902593/reviews)** | — |
| Number of ratings | **16** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 27 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 1 MB | 31 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Michael Horowitz](https://appshunter.io/developer/1750335184) | [HeatSync Labs](https://appshunter.io/developer/1844756025) |

## What reviewers say

### Debt in US

[App page](https://appshunter.io/ios/app/debt-in-us/id1489902593)

Track the United States national debt from 1993 to the present. Data is sourced directly from the US Treasury, providing historical insights into the country's financial obligations.

**Highlights:** US debt over time, Data from US Treasury, Historical data back to 1993, Track national debt trends

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

**In-app purchases:** none


### HeatSync Labs

[App page](https://appshunter.io/ios/app/heatsync-labs/id6753735140)

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

**In-app purchases:** none


## Frequently asked questions

### Is Debt in US free?

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

### Is HeatSync Labs free?

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

### Do Debt in US or HeatSync Labs have ads?

Neither Debt in US nor HeatSync Labs shows ads.

### Which is updated more often, Debt in US or HeatSync Labs?

Debt in US ships an update every 27 months, and HeatSync Labs every 4 months. Most recently, Debt in US was updated on November 3, 2026 and HeatSync Labs on September 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*